// Numbas version: finer_feedback_settings
{"name": "Stiffness Method - CA", "metadata": {"description": "", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "duration": 0, "percentPass": "40", "showQuestionGroupNames": false, "shuffleQuestionGroups": false, "showstudentname": true, "question_groups": [{"name": "Group", "pickingStrategy": "all-ordered", "pickQuestions": 1, "questionNames": [""], "variable_overrides": [[]], "questions": [{"name": "Stiffness Matrix - Truss - CA", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "Louise Lynch", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/2197/"}], "tags": [], "metadata": {"description": "", "licence": "None specified"}, "statement": "<p>The truss shown below has the following properties:</p>\n<ul>\n<li>E = {YM} GPa</li>\n<li>A = {A} mm<sup>2</sup></li>\n<li>P = {P} kN</li>\n<li>X = {X} m</li>\n<li>Y = {Y} m</li>\n</ul>\n<p><img src=\"https://brightspace.tudublin.ie/content/enforced/190630-CBEH413213029TU824-2122/02.%20Assessments/Stiffness%20Method/202122%20-%20SM%20-%20Q1.png?ou=339911\" width=\"731\" height=\"439\"/></p>\n<p>Using this problem solve the following.&nbsp;</p>", "advice": "", "rulesets": {}, "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true, "j": false}, "constants": [], "variables": {"A": {"name": "A", "group": "Ungrouped variables", "definition": "random(20..40)*10", "description": "", "templateType": "anything", "can_override": false}, "P": {"name": "P", "group": "Ungrouped variables", "definition": "random(10..47)*5", "description": "", "templateType": "anything", "can_override": false}, "X": {"name": "X", "group": "Ungrouped variables", "definition": "random(20..40)*0.1", "description": "", "templateType": "anything", "can_override": false}, "Y": {"name": "Y", "group": "Ungrouped variables", "definition": "random(50..70)*0.1", "description": "", "templateType": "anything", "can_override": false}, "YM": {"name": "YM", "group": "Ungrouped variables", "definition": "random(200..210)", "description": "", "templateType": "anything", "can_override": false}, "EAL12": {"name": "EAL12", "group": "Stiffness", "definition": "precround(YM*A/diag_L,1)", "description": "<p>kN/m</p>", "templateType": "anything", "can_override": false}, "diag_L": {"name": "diag_L", "group": "Stiffness", "definition": "precround(sqrt(X^2+Y^2),3)\n", "description": "", "templateType": "anything", "can_override": false}, "EAL23": {"name": "EAL23", "group": "Stiffness", "definition": "EAL12", "description": "", "templateType": "anything", "can_override": false}, "EAL45": {"name": "EAL45", "group": "Stiffness", "definition": "EAL12", "description": "", "templateType": "anything", "can_override": false}, "EAL24": {"name": "EAL24", "group": "Stiffness", "definition": "precround(YM*A/(2*x),1)", "description": "", "templateType": "anything", "can_override": false}, "ang": {"name": "ang", "group": "Stiffness", "definition": "precround(arctan(Y/X),3)", "description": "", "templateType": "anything", "can_override": false}, "K12": {"name": "K12", "group": "Stiffness", "definition": "EAL12 *matrix(\n  [cos(ang)^2, cos(ang)*sin(ang)],\n  [cos(ang)*sin(ang), sin(ang)^2]\n  )", "description": "", "templateType": "anything", "can_override": true}, "K23": {"name": "K23", "group": "Stiffness", "definition": "EAL23 *matrix(\n  [cos(-ang)^2, cos(-ang)*sin(-ang)],\n  [cos(-ang)*sin(-ang), sin(-ang)^2]\n  )", "description": "", "templateType": "anything", "can_override": false}, "K34": {"name": "K34", "group": "Stiffness", "definition": "EAL34 *matrix(\n  [cos(ang)^2, cos(ang)*sin(ang)],\n  [cos(ang)*sin(ang), sin(ang)^2]\n  )", "description": "", "templateType": "anything", "can_override": false}, "K45": {"name": "K45", "group": "Stiffness", "definition": "EAL45 *matrix(\n  [cos(-ang)^2, cos(-ang)*sin(-ang)],\n  [cos(-ang)*sin(-ang), sin(-ang)^2]\n  )", "description": "", "templateType": "anything", "can_override": false}, "EAL34": {"name": "EAL34", "group": "Stiffness", "definition": "EAL12", "description": "", "templateType": "anything", "can_override": false}, "K24": {"name": "K24", "group": "Stiffness", "definition": "EAL24*matrix(\n  [1, -1],\n  [-1, 1]\n  )", "description": "", "templateType": "anything", "can_override": false}, "KR": {"name": "KR", "group": "Stiffness", "definition": "matrix(\n  [K12[2,2]+K23[1,1]+K24[1,1], -1],\n  [-1, 1]\n  )", "description": "", "templateType": "anything", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["A", "P", "X", "Y", "YM"], "variable_groups": [{"name": "Stiffness", "variables": ["diag_L", "EAL12", "EAL23", "EAL34", "EAL45", "EAL24", "ang", "K12", "K23", "K34", "K45", "K24", "KR"]}], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "matrix", "useCustomName": true, "customName": "(a) ", "marks": 1, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Determine the Final Restricted Matrix in kN/m</p>\n<p></p>", "correctAnswer": "", "correctAnswerFractions": false, "numRows": "2", "numColumns": "2", "allowResize": true, "tolerance": 0, "markPerCell": false, "allowFractions": false, "minColumns": 1, "maxColumns": 0, "minRows": 1, "maxRows": 0, "prefilledCells": ""}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always"}]}, {"name": "Group", "pickingStrategy": "all-ordered", "pickQuestions": 1, "questionNames": [""], "variable_overrides": [[]], "questions": [{"name": "Stiffness Method Frame 2", "extensions": ["quantities"], "custom_part_types": [{"source": {"pk": 19, "author": {"name": "William Haynes", "pk": 2530}, "edit_page": "/part_type/19/edit"}, "name": "Engineering Accuracy with units", "short_name": "engineering-answer", "description": "<p>A value with units marked right if within an adjustable % error of the correct value. &nbsp;Marked close if within a wider margin of error.</p>", "help_url": "", "input_widget": "string", "input_options": {"correctAnswer": "siground(settings['correctAnswer'],4)", "hint": {"static": true, "value": ""}, "allowEmpty": {"static": true, "value": true}}, "can_be_gap": true, "can_be_step": true, "marking_script": "mark:\nswitch( \n  right and good_units and right_sign, add_credit(1.0,'Correct.'),\n  right and good_units and not right_sign, add_credit(settings['C2'],'Wrong sign.'),\n  right and right_sign and not good_units, add_credit(settings['C2'],'Correct value, but wrong or missing units.'),\n  close and good_units, add_credit(settings['C1'],'Close.'),\n  close and not good_units, add_credit(settings['C3'],'Answer is close, but wrong or missing units.'),\n  incorrect('Wrong answer.')\n)\n\n\ninterpreted_answer:\nqty(student_scalar, student_units)\n\n\n\ncorrect_quantity:\nsettings[\"correctAnswer\"]\n\n\n\ncorrect_units:\nunits(correct_quantity)\n\n\nallowed_notation_styles:\n[\"plain\",\"en\"]\n\nmatch_student_number:\nmatchnumber(studentAnswer,allowed_notation_styles)\n\nstudent_scalar:\nmatch_student_number[1]\n\nstudent_units:\nreplace_regex('ohms','ohm',\n  replace_regex('\u00b0', ' deg',\n    replace_regex('-', ' ' ,\n      studentAnswer[len(match_student_number[0])..len(studentAnswer)])),\"i\")\n\ngood_units:\ntry(\ncompatible(quantity(1, student_units),correct_units),\nmsg,\nfeedback(msg);false)\n\n\nstudent_quantity:\nswitch(not good_units, \n       student_scalar * correct_units, \n       not right_sign,\n       -quantity(student_scalar, student_units),\n       quantity(student_scalar,student_units)\n)\n  \n\n\npercent_error:\ntry(\nscalar(abs((correct_quantity - student_quantity)/correct_quantity))*100  \n,msg,\nif(student_quantity=correct_quantity,0,100))\n   \n\nright:\npercent_error <= settings['right']\n\n\nclose:\nright_sign and percent_error <= settings['close']\n\nright_sign:\nsign(student_scalar) = sign(correct_quantity)", "marking_notes": [{"name": "mark", "description": "This is the main marking note. It should award credit and provide feedback based on the student's answer.", "definition": "switch( \n  right and good_units and right_sign, add_credit(1.0,'Correct.'),\n  right and good_units and not right_sign, add_credit(settings['C2'],'Wrong sign.'),\n  right and right_sign and not good_units, add_credit(settings['C2'],'Correct value, but wrong or missing units.'),\n  close and good_units, add_credit(settings['C1'],'Close.'),\n  close and not good_units, add_credit(settings['C3'],'Answer is close, but wrong or missing units.'),\n  incorrect('Wrong answer.')\n)\n"}, {"name": "interpreted_answer", "description": "A value representing the student's answer to this part.", "definition": "qty(student_scalar, student_units)\n\n"}, {"name": "correct_quantity", "description": "", "definition": "settings[\"correctAnswer\"]\n\n"}, {"name": "correct_units", "description": "", "definition": "units(correct_quantity)\n"}, {"name": "allowed_notation_styles", "description": "", "definition": "[\"plain\",\"en\"]"}, {"name": "match_student_number", "description": "", "definition": "matchnumber(studentAnswer,allowed_notation_styles)"}, {"name": "student_scalar", "description": "", "definition": "match_student_number[1]"}, {"name": "student_units", "description": "<p>Modify&nbsp;the&nbsp;unit portion of&nbsp;the student's answer by</p>\n<p>1. replacing \"ohms\" with \"ohm\" &nbsp;case insensitive</p>\n<p>2.&nbsp;replacing '-'&nbsp;with ' '&nbsp;</p>\n<p>3. replacing '&deg;' with ' deg'&nbsp;</p>\n<p>to allow answers like 10 ft-lb and 30&deg;</p>", "definition": "replace_regex('ohms','ohm',\n  replace_regex('\u00b0', ' deg',\n    replace_regex('-', ' ' ,\n      studentAnswer[len(match_student_number[0])..len(studentAnswer)])),\"i\")"}, {"name": "good_units", "description": "", "definition": "try(\ncompatible(quantity(1, student_units),correct_units),\nmsg,\nfeedback(msg);false)\n"}, {"name": "student_quantity", "description": "<p>This fixes the student answer for two common errors. &nbsp;</p>\n<p>If student_units are wrong&nbsp;&nbsp;- replace with correct units</p>\n<p>If student_scalar has the wrong sign - replace with right sign</p>\n<p>If student makes both errors, only one gets fixed.</p>", "definition": "switch(not good_units, \n       student_scalar * correct_units, \n       not right_sign,\n       -quantity(student_scalar, student_units),\n       quantity(student_scalar,student_units)\n)\n  \n"}, {"name": "percent_error", "description": "", "definition": "try(\nscalar(abs((correct_quantity - student_quantity)/correct_quantity))*100  \n,msg,\nif(student_quantity=correct_quantity,0,100))\n   "}, {"name": "right", "description": "", "definition": "percent_error <= settings['right']\n"}, {"name": "close", "description": "<p>Only marked close if the student actually has the right sign.</p>", "definition": "right_sign and percent_error <= settings['close']"}, {"name": "right_sign", "description": "", "definition": "sign(student_scalar) = sign(correct_quantity) "}], "settings": [{"name": "correctAnswer", "label": "Correct Quantity.", "help_url": "", "hint": "The correct answer given as a JME quantity.", "input_type": "code", "default_value": "", "evaluate": true}, {"name": "right", "label": "% Accuracy for right.", "help_url": "", "hint": "Question will be considered correct if the scalar part of the student's answer is within this % of correct value.", "input_type": "code", "default_value": "0.2", "evaluate": true}, {"name": "close", "label": "% Accuracy for close.", "help_url": "", "hint": "Question will be considered close if the scalar part of the student's answer is within this % of correct value.", "input_type": "code", "default_value": "1.0", "evaluate": true}, {"name": "C1", "label": "Close with units.", "help_url": "", "hint": "Partial Credit for close value with appropriate units. &nbsp;if correct answer is 100 N and close is &plusmn;1%,<br />99 &nbsp;N is accepted.", "input_type": "percent", "default_value": "75"}, {"name": "C2", "label": "No units or wrong sign", "help_url": "", "hint": "Partial credit for forgetting units or using wrong sign.<br />If the correct answer is 100 N, both 100 and -100 N are accepted.", "input_type": "percent", "default_value": "50"}, {"name": "C3", "label": "Close, no units.", "help_url": "", "hint": "Partial Credit for close value but forgotten units.<br />This value would be close&nbsp;if the expected units were provided. &nbsp;If the correct answer is 100 N, and close is &plusmn;1%,<br />99 is accepted.", "input_type": "percent", "default_value": "25"}], "public_availability": "always", "published": true, "extensions": ["quantities"]}], "resources": [["question-resources/SupQ2_QzPzD1B.png", "/srv/numbas/media/question-resources/SupQ2_QzPzD1B.png"], ["question-resources/CBEH4132_-_MSM_-_202021_-_CA4_-_Q2.png", "/srv/numbas/media/question-resources/CBEH4132_-_MSM_-_202021_-_CA4_-_Q2.png"], ["question-resources/202122_-_SM_-_Q2.png", "/srv/numbas/media/question-resources/202122_-_SM_-_Q2.png"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "Louise Lynch", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/2197/"}], "tags": [], "metadata": {"description": "", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "statement": "<p>Using the stiffness method, for the frame shown, calculate the following.&nbsp;</p>\n<p style=\"text-align: center;\"><img src=\"resources/question-resources/202122_-_SM_-_Q2.png\" style=\"width: 700px; height: 420px;\"/></p>\n<p style=\"text-align: center;\"><!-- x-tinymce/html --></p>\n<div><strong>Note:&nbsp;</strong>Neglect the axial deformation in all members.</div>\n<div></div>\n<div>Take the following values:</div>\n<ul>\n<li>X = {X} m</li>\n<li>Y = {Y} m</li>\n<li>Z = {Z} m</li>\n<li>P = {PL} kN</li>\n<li>w = {UDL} kN/m</li>\n<li>m EI = {m} EI</li>\n<li>n EI = {n} EI</li>\n</ul>\n<div>&nbsp;</div>\n<div>Assume the following:</div>\n<ul>\n<li>E = {YM} GPa</li>\n<li>I = {SMA} cm<sup>4</sup><sup></sup></li>\n</ul>\n<p></p>", "advice": "", "rulesets": {}, "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true, "j": false}, "constants": [], "variables": {"EI": {"name": "EI", "group": "Initial Calculations", "definition": "YM*SMA*10^-2", "description": "", "templateType": "anything", "can_override": false}, "X": {"name": "X", "group": "Provided Data", "definition": "random(25..39)*0.1", "description": "<p>random(25..39)*0.1</p>", "templateType": "anything", "can_override": false}, "Y": {"name": "Y", "group": "Provided Data", "definition": "random(33..62)*0.1", "description": "<p>random(33..62)*0.1</p>", "templateType": "anything", "can_override": false}, "PL": {"name": "PL", "group": "Provided Data", "definition": "random(15..20)*5", "description": "<p>random(15..20)*5</p>", "templateType": "anything", "can_override": false}, "UDL": {"name": "UDL", "group": "Provided Data", "definition": "random(3..7)*5", "description": "", "templateType": "anything", "can_override": false}, "Theta_C": {"name": "Theta_C", "group": "Answers with Units", "definition": "qty(tC,\"rad\")", "description": "", "templateType": "anything", "can_override": false}, "Theta_B": {"name": "Theta_B", "group": "Answers with Units", "definition": "qty(tB,\"rad\")", "description": "", "templateType": "anything", "can_override": false}, "tA": {"name": "tA", "group": "Displacements", "definition": "0", "description": "", "templateType": "anything", "can_override": false}, "tB": {"name": "tB", "group": "Displacements", "definition": "siground(theta_BC[0][0],4)", "description": "", "templateType": "anything", "can_override": false}, "tC": {"name": "tC", "group": "Displacements", "definition": "siground(theta_BC[1][0],4)", "description": "", "templateType": "anything", "can_override": false}, "Z": {"name": "Z", "group": "Provided Data", "definition": "random(15..29)*0.1", "description": "<p>random(15..29)*0.1</p>", "templateType": "anything", "can_override": false}, "tD": {"name": "tD", "group": "Displacements", "definition": "0", "description": "", "templateType": "anything", "can_override": false}, "EI_AB": {"name": "EI_AB", "group": "Initial Calculations", "definition": "EI", "description": "", "templateType": "anything", "can_override": false}, "EI_BC": {"name": "EI_BC", "group": "Initial Calculations", "definition": "m*EI", "description": "", "templateType": "anything", "can_override": false}, "EI_CD": {"name": "EI_CD", "group": "Initial Calculations", "definition": "n*EI", "description": "", "templateType": "anything", "can_override": false}, "K33_AB": {"name": "K33_AB", "group": "Stiffnesses", "definition": "round(4*EI_AB/LAB)", "description": "", "templateType": "anything", "can_override": false}, "LAB": {"name": "LAB", "group": "Initial Calculations", "definition": "X", "description": "", "templateType": "anything", "can_override": false}, "LBC": {"name": "LBC", "group": "Initial Calculations", "definition": "Y", "description": "", "templateType": "anything", "can_override": false}, "LCD": {"name": "LCD", "group": "Initial Calculations", "definition": "X+Z", "description": "", "templateType": "anything", "can_override": false}, "K33_BC": {"name": "K33_BC", "group": "Stiffnesses", "definition": "round(4*EI_BC/LBC)", "description": "", "templateType": "anything", "can_override": false}, "K33_CD": {"name": "K33_CD", "group": "Stiffnesses", "definition": "round(4*EI_CD/LCD)", "description": "", "templateType": "anything", "can_override": false}, "K36_CD": {"name": "K36_CD", "group": "Stiffnesses", "definition": "round(2*EI_CD/LCD)", "description": "", "templateType": "anything", "can_override": false}, "K36_AB": {"name": "K36_AB", "group": "Stiffnesses", "definition": "round(2*EI_AB/LAB)", "description": "", "templateType": "anything", "can_override": false}, "K36_BC": {"name": "K36_BC", "group": "Stiffnesses", "definition": "round(2*EI_BC/LBC)", "description": "", "templateType": "anything", "can_override": false}, "K_AB": {"name": "K_AB", "group": "Stiffnesses", "definition": "matrix(\n  [K33_AB, K36_AB],\n  [K36_AB, K33_AB]\n  )", "description": "", "templateType": "anything", "can_override": false}, "K_BC": {"name": "K_BC", "group": "Stiffnesses", "definition": "matrix(\n  [K33_BC, K36_BC],\n  [K36_BC, K33_BC]\n  )", "description": "", "templateType": "anything", "can_override": false}, "K_CD": {"name": "K_CD", "group": "Stiffnesses", "definition": "matrix(\n  [K33_CD, k36_CD],\n  [K36_CD, K33_CD]\n  )", "description": "", "templateType": "anything", "can_override": false}, "K_r_11": {"name": "K_r_11", "group": "Stiffnesses", "definition": " K33_AB+K33_BC", "description": "", "templateType": "anything", "can_override": false}, "K_r_12": {"name": "K_r_12", "group": "Stiffnesses", "definition": "K36_BC", "description": "", "templateType": "anything", "can_override": false}, "K_r_22": {"name": "K_r_22", "group": "Stiffnesses", "definition": "K33_BC+K33_CD+K33_CE", "description": "", "templateType": "anything", "can_override": false}, "K_r": {"name": "K_r", "group": "Stiffnesses", "definition": "matrix(\n  [K_r_11, K_r_12],\n  [K_r_12, K_r_22]\n  )", "description": "", "templateType": "anything", "can_override": false}, "Inv_Kr": {"name": "Inv_Kr", "group": "Stiffnesses", "definition": "inv(K_r)", "description": "", "templateType": "anything", "can_override": false}, "MAB_FEM": {"name": "MAB_FEM", "group": "Initial Moments", "definition": "matrix([0],[0])", "description": "", "templateType": "anything", "can_override": false}, "MBC_FEM": {"name": "MBC_FEM", "group": "Initial Moments", "definition": "matrix([siground(PL*Z^2*(Y-Z)/LBC^2,4)],[-siground(PL*(Y-Z)^2*Z/LBC^2,4)])", "description": "", "templateType": "anything", "can_override": false}, "MCD_FEM": {"name": "MCD_FEM", "group": "Initial Moments", "definition": "matrix([siground(UDL*X^2/(12*LCD^2)*(6*LCD^2-8*X*LCD+3*X^2),4)],[-siground(UDL*X^3/(12*LCD^2)*(4*LCD-3*X),4)])", "description": "", "templateType": "anything", "can_override": false}, "MA_Nodal": {"name": "MA_Nodal", "group": "Initial Moments", "definition": "0", "description": "", "templateType": "anything", "can_override": false}, "MB_Nodal": {"name": "MB_Nodal", "group": "Initial Moments", "definition": "0", "description": "", "templateType": "anything", "can_override": false}, "MD_Nodal": {"name": "MD_Nodal", "group": "Initial Moments", "definition": "0", "description": "", "templateType": "anything", "can_override": false}, "MB": {"name": "MB", "group": "Initial Moments", "definition": "MB_Nodal-(MAB_FEM[1][0]+MBC_FEM[0][0])", "description": "", "templateType": "anything", "can_override": false}, "MC_Nodal": {"name": "MC_Nodal", "group": "Initial Moments", "definition": "0", "description": "", "templateType": "anything", "can_override": false}, "MC_": {"name": "MC_", "group": "Initial Moments", "definition": "MC_Nodal-(MBC_FEM[1][0]+MCD_FEM[0][0]+MCE_FEM[0][0])", "description": "", "templateType": "anything", "can_override": false}, "theta_BC": {"name": "theta_BC", "group": "Displacements", "definition": "Inv_Kr*M_Mat", "description": "", "templateType": "anything", "can_override": false}, "M_Mat": {"name": "M_Mat", "group": "Initial Moments", "definition": "precround(matrix([MB],[MC_]),3)", "description": "", "templateType": "anything", "can_override": false}, "MAB": {"name": "MAB", "group": "BMD", "definition": "siground(MAB_FEM+K_AB*matrix([tA],[tB]),4)", "description": "", "templateType": "anything", "can_override": false}, "MBC": {"name": "MBC", "group": "BMD", "definition": "precround(MBC_FEM+K_BC*matrix([tB],[tC]),2)", "description": "", "templateType": "anything", "can_override": false}, "MCD": {"name": "MCD", "group": "BMD", "definition": "precround(MCD_FEM +K_CD*matrix([tC],[tD]),2)", "description": "", "templateType": "anything", "can_override": false}, "MB_Check": {"name": "MB_Check", "group": "BMD", "definition": "precround(MAB[1][0]+MBC[0][0],3)", "description": "", "templateType": "anything", "can_override": false}, "MC_Check": {"name": "MC_Check", "group": "BMD", "definition": "precround(MBC[1][0]+MCD[0][0]+MCE[0][0],3)", "description": "", "templateType": "anything", "can_override": false}, "VD": {"name": "VD", "group": "Reactions", "definition": "siground((-MCD[0][0]-MCD[1][0]+UDL*X^2/2)/LCD,4)\n", "description": "", "templateType": "anything", "can_override": false}, "HD": {"name": "HD", "group": "Reactions", "definition": "-(HA+HE)", "description": "<p>Left is neg</p>", "templateType": "anything", "can_override": false}, "VA": {"name": "VA", "group": "Reactions", "definition": "PL-VC_L", "description": "", "templateType": "anything", "can_override": false}, "VC_L": {"name": "VC_L", "group": "Reactions", "definition": "siground((-MBC[0][0]-MBC[1][0]+PL*(Y-Z))/LBC,5)", "description": "", "templateType": "anything", "can_override": false}, "MB_ans": {"name": "MB_ans", "group": "Answers with Units", "definition": " qty(MBC[0][0],\"kN m\")", "description": "", "templateType": "anything", "can_override": false}, "Mc_ans": {"name": "Mc_ans", "group": "Answers with Units", "definition": " qty(precround(MBC[1][0],1),\"kN m\")", "description": "", "templateType": "anything", "can_override": false}, "Mbc_mid_ans": {"name": "Mbc_mid_ans", "group": "Answers with Units", "definition": "qty(precround(MBC_P,1),\"kN m\")", "description": "", "templateType": "anything", "can_override": false}, "VE": {"name": "VE", "group": "Reactions", "definition": "VC_L+VC_R", "description": "", "templateType": "anything", "can_override": false}, "m": {"name": "m", "group": "Provided Data", "definition": "random(11..19)*0.1", "description": "<p>random(11..19)*0.1</p>", "templateType": "anything", "can_override": false}, "n": {"name": "n", "group": "Provided Data", "definition": "random(20..30)*0.1", "description": "<p>random(20..30)*0.1</p>", "templateType": "anything", "can_override": false}, "VC_R": {"name": "VC_R", "group": "Reactions", "definition": "siground(UDL*X-VD,4)", "description": "", "templateType": "anything", "can_override": false}, "MBC_P": {"name": "MBC_P", "group": "BMD", "definition": "precround(VA*(Y-Z)-MBC[0][0],2)", "description": "", "templateType": "anything", "can_override": false}, "MCD_UDL": {"name": "MCD_UDL", "group": "BMD", "definition": "precround(VC_R^2/UDL-MCD[0][0]-UDL*(VC_R/UDL)^2/2,2)", "description": "", "templateType": "anything", "can_override": false}, "MCD_UDL_ans": {"name": "MCD_UDL_ans", "group": "Answers with Units", "definition": "qty(MCD_UDL,\"kN m\")", "description": "", "templateType": "anything", "can_override": false}, "HA": {"name": "HA", "group": "Reactions", "definition": "siground((-MAB[0][0]-MAB[1][0])/LAB,4)", "description": "", "templateType": "anything", "can_override": false}, "HE": {"name": "HE", "group": "Reactions", "definition": "siground((-MCE[0][0]-MCE[1][0])/LCE,3)", "description": "", "templateType": "anything", "can_override": false}, "YM": {"name": "YM", "group": "Provided Data", "definition": "random(30..39)", "description": "<p>random(30..39)</p>", "templateType": "anything", "can_override": false}, "SMA": {"name": "SMA", "group": "Provided Data", "definition": "random(1000..1800)*50", "description": "<p>random(1000..1800)*50</p>", "templateType": "anything", "can_override": false}, "EI_CE": {"name": "EI_CE", "group": "Initial Calculations", "definition": "EI", "description": "", "templateType": "anything", "can_override": false}, "LCE": {"name": "LCE", "group": "Initial Calculations", "definition": "X", "description": "", "templateType": "anything", "can_override": false}, "K33_CE": {"name": "K33_CE", "group": "Stiffnesses", "definition": "round(4*EI_CE/LCE)", "description": "", "templateType": "anything", "can_override": false}, "K36_CE": {"name": "K36_CE", "group": "Stiffnesses", "definition": "round(2*EI_CE/LCE)", "description": "", "templateType": "anything", "can_override": false}, "K_CE": {"name": "K_CE", "group": "Stiffnesses", "definition": "matrix(\n  [K33_CE, k36_CE],\n  [K36_CE, K33_CE]\n  )", "description": "", "templateType": "anything", "can_override": false}, "MCE_FEM": {"name": "MCE_FEM", "group": "Initial Moments", "definition": "matrix([0],[0])", "description": "", "templateType": "anything", "can_override": false}, "MCE": {"name": "MCE", "group": "BMD", "definition": "precround(MCE_FEM +K_CE*matrix([tC],[tE]),2)", "description": "", "templateType": "anything", "can_override": false}, "tE": {"name": "tE", "group": "Displacements", "definition": "0", "description": "", "templateType": "anything", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": [], "variable_groups": [{"name": "Provided Data", "variables": ["UDL", "PL", "X", "Y", "Z", "m", "n", "YM", "SMA"]}, {"name": "Initial Calculations", "variables": ["EI", "EI_AB", "EI_BC", "EI_CD", "EI_CE", "LAB", "LBC", "LCD", "LCE"]}, {"name": "Displacements", "variables": ["tA", "tB", "tC", "tD", "tE", "theta_BC"]}, {"name": "Stiffnesses", "variables": ["Inv_Kr", "K33_AB", "K33_BC", "K33_CD", "K33_CE", "K36_AB", "K36_BC", "K36_CD", "K36_CE", "K_AB", "K_BC", "K_CD", "K_CE", "K_r", "K_r_11", "K_r_12", "K_r_22"]}, {"name": "Initial Moments", "variables": ["MAB_FEM", "MBC_FEM", "MCD_FEM", "MCE_FEM", "M_Mat", "MB", "MC_", "MA_Nodal", "MB_Nodal", "MC_Nodal", "MD_Nodal"]}, {"name": "BMD", "variables": ["MAB", "MB_Check", "MBC", "MCD", "MCE", "MC_Check", "MBC_P", "MCD_UDL"]}, {"name": "Reactions", "variables": ["VA", "VC_L", "VC_R", "VD", "HD", "VE", "HA", "HE"]}, {"name": "Answers with Units", "variables": ["MB_ans", "Mbc_mid_ans", "Mc_ans", "MCD_UDL_ans", "Theta_B", "Theta_C"]}], "functions": {"inv": {"parameters": [["m", "matrix"]], "type": "matrix", "language": "jme", "definition": "transpose(matrix([\n    [m[1][1], -m[1][0]],\n    [-m[0][1], m[0][0]]\n]))/det(m)"}}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "gapfill", "useCustomName": true, "customName": "(a)", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Apply the relevant boundary conditions and determine the final restricted matrix, include units in each cell.&nbsp;</p>\n<table width=\"266\" height=\"53\" align=\"center\" style=\"height: 44px; width: 266px;\" cellpadding=\"2px\">\n<tbody>\n<tr style=\"height: 22px;\">\n<td style=\"width: 56.8125px; height: 44px;\" rowspan=\"2;\" align=\"center\">K<sub>R</sub> =</td>\n<td style=\"border-left: solid; height: 22px; width: 79.5938px;\" align=\"center\">[[0]]</td>\n<td style=\"border-right: solid; height: 22px; width: 79.5938px;\" align=\"center\">[[1]]</td>\n</tr>\n<tr style=\"height: 22px;\">\n<td align=\"center\" style=\"border-left: solid; height: 22px; width: 79.5938px;\">[[2]]</td>\n<td align=\"center\" style=\"border-right: solid; height: 22px; width: 79.5938px;\">[[3]]</td>\n</tr>\n</tbody>\n</table>", "gaps": [{"type": "engineering-answer", "useCustomName": true, "customName": "K11", "marks": "2", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(precround(k_r_11,0),\"kN m\")", "right": "0.2", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "K12", "marks": "2", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(precround(k_r_12,0),\"kN m\")", "right": "0.2", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "K21", "marks": "2", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(precround(k_r_12,0),\"kN m\")", "right": "0.2", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "K22", "marks": "2", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(precround(k_r_22,0),\"kN m\")", "right": "0.2", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}], "sortAnswers": false}, {"type": "gapfill", "useCustomName": true, "customName": "(b)", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Apply the relevant boundary conditions and determine the final force matrix, used to solve for displacement, include units in each cell.&nbsp;</p>\n<table width=\"266\" height=\"53\" align=\"center\" style=\"height: 44px; width: 135px;\" cellpadding=\"2px\">\n<tbody>\n<tr style=\"height: 40px;\">\n<td style=\"width: 150px;\" rowspan=\"2\" align=\"center\">F<sub>R</sub> =</td>\n<td style=\"border-left: solid; border-right: solid; width: 100px;\" align=\"center\">[[0]]</td>\n</tr>\n<tr style=\"height: 40px;\">\n<td align=\"center\" style=\"border-left: solid; border-right: solid;\">[[1]]</td>\n</tr>\n</tbody>\n</table>", "gaps": [{"type": "engineering-answer", "useCustomName": true, "customName": "Mb", "marks": "2", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(precround(MB,1),\"kN m\")", "right": "0.2", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Mc", "marks": "2", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(precround(mc_,1),\"kN m\")", "right": "0.2", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}], "sortAnswers": false}, {"type": "gapfill", "useCustomName": true, "customName": "(c)", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Calculate the unknown&nbsp;displacement and rotations. Enter the values in the table below.&nbsp;</p>\n<p>Where displacement ($\\delta_x$ or $\\delta_y$) and rotational ($\\theta$) movement is restricted at that node, enter 0.&nbsp;</p>\n<p><strong>Note:</strong> anticlockwise rotation should be taken as positive, and clockwise as negative.</p>\n<p>Remember that units should always be included, where relevant.&nbsp;</p>\n<p>\u200b\u200b</p>\n<table style=\"margin-left: auto; margin-right: auto; width: 60%;\">\n<tbody>\n<tr>\n<th style=\"text-align: center; width: 19%;\">Node</th>\n<th style=\"text-align: center; width: 27%;\">$\\delta_x$</th>\n<th style=\"text-align: center; width: 27%;\">$\\delta_y$</th>\n<th style=\"text-align: center; width: 27%;\">$\\theta$</th>\n</tr>\n<tr>\n<th style=\"text-align: center;\">A</th>\n<td style=\"text-align: center;\">[[0]]</td>\n<td style=\"text-align: center;\">[[1]]</td>\n<td style=\"text-align: center;\">[[2]]</td>\n</tr>\n<tr>\n<th style=\"text-align: center;\">B</th>\n<td style=\"text-align: center;\">[[3]]</td>\n<td style=\"text-align: center;\">[[4]]</td>\n<td style=\"text-align: center;\">[[5]]</td>\n</tr>\n<tr>\n<th style=\"text-align: center;\">C</th>\n<td style=\"text-align: center;\">[[6]]</td>\n<td style=\"text-align: center;\">[[7]]</td>\n<td style=\"text-align: center;\">[[8]]</td>\n</tr>\n<tr>\n<th style=\"text-align: center;\">D</th>\n<td style=\"text-align: center;\">[[9]]</td>\n<td style=\"text-align: center;\">[[10]]</td>\n<td style=\"text-align: center;\">[[11]]</td>\n</tr>\n<tr>\n<th style=\"text-align: center;\">E</th>\n<td style=\"text-align: center;\">[[12]]</td>\n<td style=\"text-align: center;\">[[13]]</td>\n<td style=\"text-align: center;\">[[14]]</td>\n</tr>\n</tbody>\n</table>\n<p></p>", "gaps": [{"type": "engineering-answer", "useCustomName": true, "customName": "dx_A", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "dy_A", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "t_A", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "dx_b", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "dy_b", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "t_b", "marks": "2.48", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "Theta_B", "right": "0.25", "close": "1", "C1": "75", "C2": "60", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "dx_c", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "dy_c", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "t_c", "marks": "2.48", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "Theta_C", "right": "0.25", "close": "1", "C1": "75", "C2": "60", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "dx_d", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "dy_d", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "t_d", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "dx_e", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "dy_e", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "t_e", "marks": "0.08", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(0,\"m\")", "right": "0", "close": "0", "C1": "75", "C2": "100", "C3": "25"}}], "sortAnswers": false}, {"type": "gapfill", "useCustomName": true, "customName": "(d)", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Using the displacements/rotations calculated in part (c). Calculate the key moments in the system.</p>\n<ul>\n<li>Enter the requested values in the&nbsp;table below</li>\n<li>Include a completed bending moment diagram in your hand submission.&nbsp;</li>\n</ul>\n<p><strong>Note:</strong>&nbsp;Anticlockwise moments should be taken as positive, and clockwise as negative.</p>\n<p>Remember that units should always be included, where relevant.&nbsp;</p>\n<p></p>\n<table style=\"margin-left: auto; margin-right: auto; height: 172px;\">\n<tbody>\n<tr style=\"height: 25px;\">\n<th style=\"width: 80px;\">Node</th>\n<th style=\"text-align: center; width: 100px;\">Moment</th>\n<th style=\"text-align: center; width: 150px;\">Addition information</th>\n</tr>\n<tr style=\"height: 25px;\">\n<th>A</th>\n<td style=\"text-align: center;\">[[0]]</td>\n<td style=\"text-align: center;\">-</td>\n</tr>\n<tr style=\"height: 25px;\">\n<th>B</th>\n<td style=\"text-align: center;\">[[1]]</td>\n<td style=\"text-align: center;\">In column AB</td>\n</tr>\n<tr style=\"height: 25px;\">\n<th>B</th>\n<td style=\"text-align: center;\">[[2]]</td>\n<td style=\"text-align: center;\">In beam&nbsp;BC</td>\n</tr>\n<tr style=\"height: 25px;\">\n<th>C</th>\n<td style=\"text-align: center;\">[[3]]</td>\n<td style=\"text-align: center;\">In beam BC</td>\n</tr>\n<tr style=\"height: 25px;\">\n<th>C</th>\n<td style=\"text-align: center;\">[[4]]</td>\n<td style=\"text-align: center;\">In column CE</td>\n</tr>\n<tr style=\"height: 25px;\">\n<th>C</th>\n<td style=\"text-align: center;\">[[5]]</td>\n<td style=\"text-align: center;\">In beam CD</td>\n</tr>\n<tr style=\"height: 25px;\">\n<th>D</th>\n<td style=\"text-align: center;\">[[6]]</td>\n<td style=\"text-align: center;\"></td>\n</tr>\n<tr style=\"height: 25px;\">\n<th>E</th>\n<td style=\"text-align: center;\">[[7]]</td>\n<td style=\"text-align: center;\"></td>\n</tr>\n</tbody>\n</table>\n<p></p>\n<table style=\"margin-left: auto; margin-right: auto;\">\n<tbody>\n<tr style=\"height: 25px;\">\n<th style=\"width: 80px;\">Member</th>\n<th style=\"text-align: center; width: 150px;\">Peak Mid Span Moment</th>\n</tr>\n<tr style=\"height: 25px;\">\n<th>BC</th>\n<td style=\"text-align: center;\">[[8]]</td>\n</tr>\n<tr style=\"height: 25px;\">\n<th>CD</th>\n<td style=\"text-align: center;\">[[9]]</td>\n</tr>\n</tbody>\n</table>", "gaps": [{"type": "engineering-answer", "useCustomName": true, "customName": "MA", "marks": "0.875", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(MAB[0][0],\"kN m\")", "right": "0.25", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "MBA", "marks": "0.875", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(MAB[1][0],\"kN m\")", "right": "0.25", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Mbc", "marks": "0.875", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(MBC[0][0],\"kN m\")", "right": "0.25", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Mcb", "marks": "0.875", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(MBC[1][0],\"kN m\")", "right": "0.25", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Mcd", "marks": "0.875", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(MCD[0][0],\"kN m\")", "right": "0.25", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Mce", "marks": "0.875", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(MCE[0][0],\"kN m\")", "right": "0.25", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Md", "marks": "0.875", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(MCD[1][0],\"kN m\")", "right": "0.25", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Me", "marks": "0.875", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(MCE[1][0],\"kN m\")", "right": "0.25", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Mbcmid", "marks": "2", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "Mbc_mid_ans", "right": "0.25", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Mcdmid", "marks": "2", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "MCD_UDL_ans", "right": "0.25", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}], "sortAnswers": false}, {"type": "gapfill", "useCustomName": true, "customName": "(e)", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Using the values calculated above. Calculate the horizontal and vertical reactions at the supports and enter values,&nbsp;correct to 1 decimal place, into the table below.</p>\n<p><strong>Note:</strong>&nbsp;Reaction up and to the right should be taken as positive, down and left as negative.</p>\n<p>Remember that units should always be included, where relevant.&nbsp;</p>\n<p>\u200b</p>\n<table cellpadding=\"2\" style=\"margin-left: auto; margin-right: auto;\">\n<tbody>\n<tr style=\"height: 70px;\">\n<th style=\"text-align: center; width: 100px;\">Support</th>\n<th style=\"text-align: center; width: 100px;\">Vertical Reaction</th>\n<th style=\"text-align: center; width: 100px;\">Horizontal Reaction</th>\n</tr>\n<tr style=\"height: 30px;\">\n<th style=\"text-align: center;\">A</th>\n<td style=\"text-align: center;\">[[0]]</td>\n<td style=\"text-align: center;\">[[1]]</td>\n</tr>\n<tr style=\"height: 30px;\">\n<th style=\"text-align: center;\">D</th>\n<td style=\"text-align: center;\">[[2]]</td>\n<td style=\"text-align: center;\">[[3]]</td>\n</tr>\n<tr style=\"height: 30px;\">\n<th style=\"text-align: center;\">E</th>\n<td style=\"text-align: center;\">[[4]]</td>\n<td style=\"text-align: center;\">[[5]]</td>\n</tr>\n</tbody>\n</table>", "gaps": [{"type": "engineering-answer", "useCustomName": true, "customName": "VA", "marks": "0.67", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(VA,\"kN\")", "right": "0.2", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "HA", "marks": "0.67", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(hA,\"kN\")", "right": "0.2", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Vd", "marks": "0.67", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(Vd,\"kN\")", "right": "0.2", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Hd", "marks": "0.67", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(hd,\"kN\")", "right": "3", "close": "5", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "Ve", "marks": "0.66", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(Ve,\"kN\")", "right": "0.2", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}, {"type": "engineering-answer", "useCustomName": true, "customName": "He", "marks": "0.66", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "settings": {"correctAnswer": "qty(He,\"kN\")", "right": "0.2", "close": "1.0", "C1": "75", "C2": "50", "C3": "25"}}], "sortAnswers": false}, {"type": "information", "useCustomName": true, "customName": "(f)", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>As per the Specification on Brightspace you are required to submit the BMD and deflected shape (review the specification for more detail).</p>\n<p><br/>Marks for the inputs above are ONLY&nbsp; part of your assignment, drawings and computer model are essential elements.&nbsp;</p>"}, {"type": "information", "useCustomName": true, "customName": "(g)", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>As per the Specification on Brightspace you are required to submit a computer output of this problem and compare the answers between the computer and hand model (review the specification for more detail).</p>\n<p><br/>Marks for the inputs above are ONLY&nbsp; part of your assignment, drawings and computer model are essential elements.&nbsp;</p>"}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always"}]}], "allowPrinting": true, "navigation": {"allowregen": false, "reverse": true, "browse": true, "allowsteps": true, "showfrontpage": true, "navigatemode": "sequence", "onleave": {"action": "none", "message": ""}, "preventleave": true, "typeendtoleave": false, "startpassword": "", "autoSubmit": true, "allowAttemptDownload": false, "downloadEncryptionKey": "", "showresultspage": "oncompletion"}, "timing": {"allowPause": true, "timeout": {"action": "none", "message": ""}, "timedwarning": {"action": "none", "message": ""}}, "feedback": {"enterreviewmodeimmediately": true, "showactualmarkwhen": "always", "showtotalmarkwhen": "always", "showanswerstatewhen": "always", "showpartfeedbackmessageswhen": "always", "showexpectedanswerswhen": "inreview", "showadvicewhen": "inreview", "allowrevealanswer": false, "intro": "", "end_message": "", "results_options": {"printquestions": true, "printadvice": true}, "feedbackmessages": [], "reviewshowexpectedanswer": true, "showanswerstate": true, "reviewshowfeedback": true, "showactualmark": true, "showtotalmark": true, "reviewshowscore": true, "reviewshowadvice": true}, "diagnostic": {"knowledge_graph": {"topics": [], "learning_objectives": []}, "script": "diagnosys", "customScript": ""}, "contributors": [{"name": "Louise Lynch", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/2197/"}], "extensions": ["quantities"], "custom_part_types": [{"source": {"pk": 19, "author": {"name": "William Haynes", "pk": 2530}, "edit_page": "/part_type/19/edit"}, "name": "Engineering Accuracy with units", "short_name": "engineering-answer", "description": "<p>A value with units marked right if within an adjustable % error of the correct value. &nbsp;Marked close if within a wider margin of error.</p>", "help_url": "", "input_widget": "string", "input_options": {"correctAnswer": "siground(settings['correctAnswer'],4)", "hint": {"static": true, "value": ""}, "allowEmpty": {"static": true, "value": true}}, "can_be_gap": true, "can_be_step": true, "marking_script": "mark:\nswitch( \n  right and good_units and right_sign, add_credit(1.0,'Correct.'),\n  right and good_units and not right_sign, add_credit(settings['C2'],'Wrong sign.'),\n  right and right_sign and not good_units, add_credit(settings['C2'],'Correct value, but wrong or missing units.'),\n  close and good_units, add_credit(settings['C1'],'Close.'),\n  close and not good_units, add_credit(settings['C3'],'Answer is close, but wrong or missing units.'),\n  incorrect('Wrong answer.')\n)\n\n\ninterpreted_answer:\nqty(student_scalar, student_units)\n\n\n\ncorrect_quantity:\nsettings[\"correctAnswer\"]\n\n\n\ncorrect_units:\nunits(correct_quantity)\n\n\nallowed_notation_styles:\n[\"plain\",\"en\"]\n\nmatch_student_number:\nmatchnumber(studentAnswer,allowed_notation_styles)\n\nstudent_scalar:\nmatch_student_number[1]\n\nstudent_units:\nreplace_regex('ohms','ohm',\n  replace_regex('\u00b0', ' deg',\n    replace_regex('-', ' ' ,\n      studentAnswer[len(match_student_number[0])..len(studentAnswer)])),\"i\")\n\ngood_units:\ntry(\ncompatible(quantity(1, student_units),correct_units),\nmsg,\nfeedback(msg);false)\n\n\nstudent_quantity:\nswitch(not good_units, \n       student_scalar * correct_units, \n       not right_sign,\n       -quantity(student_scalar, student_units),\n       quantity(student_scalar,student_units)\n)\n  \n\n\npercent_error:\ntry(\nscalar(abs((correct_quantity - student_quantity)/correct_quantity))*100  \n,msg,\nif(student_quantity=correct_quantity,0,100))\n   \n\nright:\npercent_error <= settings['right']\n\n\nclose:\nright_sign and percent_error <= settings['close']\n\nright_sign:\nsign(student_scalar) = sign(correct_quantity)", "marking_notes": [{"name": "mark", "description": "This is the main marking note. It should award credit and provide feedback based on the student's answer.", "definition": "switch( \n  right and good_units and right_sign, add_credit(1.0,'Correct.'),\n  right and good_units and not right_sign, add_credit(settings['C2'],'Wrong sign.'),\n  right and right_sign and not good_units, add_credit(settings['C2'],'Correct value, but wrong or missing units.'),\n  close and good_units, add_credit(settings['C1'],'Close.'),\n  close and not good_units, add_credit(settings['C3'],'Answer is close, but wrong or missing units.'),\n  incorrect('Wrong answer.')\n)\n"}, {"name": "interpreted_answer", "description": "A value representing the student's answer to this part.", "definition": "qty(student_scalar, student_units)\n\n"}, {"name": "correct_quantity", "description": "", "definition": "settings[\"correctAnswer\"]\n\n"}, {"name": "correct_units", "description": "", "definition": "units(correct_quantity)\n"}, {"name": "allowed_notation_styles", "description": "", "definition": "[\"plain\",\"en\"]"}, {"name": "match_student_number", "description": "", "definition": "matchnumber(studentAnswer,allowed_notation_styles)"}, {"name": "student_scalar", "description": "", "definition": "match_student_number[1]"}, {"name": "student_units", "description": "<p>Modify&nbsp;the&nbsp;unit portion of&nbsp;the student's answer by</p>\n<p>1. replacing \"ohms\" with \"ohm\" &nbsp;case insensitive</p>\n<p>2.&nbsp;replacing '-'&nbsp;with ' '&nbsp;</p>\n<p>3. replacing '&deg;' with ' deg'&nbsp;</p>\n<p>to allow answers like 10 ft-lb and 30&deg;</p>", "definition": "replace_regex('ohms','ohm',\n  replace_regex('\u00b0', ' deg',\n    replace_regex('-', ' ' ,\n      studentAnswer[len(match_student_number[0])..len(studentAnswer)])),\"i\")"}, {"name": "good_units", "description": "", "definition": "try(\ncompatible(quantity(1, student_units),correct_units),\nmsg,\nfeedback(msg);false)\n"}, {"name": "student_quantity", "description": "<p>This fixes the student answer for two common errors. &nbsp;</p>\n<p>If student_units are wrong&nbsp;&nbsp;- replace with correct units</p>\n<p>If student_scalar has the wrong sign - replace with right sign</p>\n<p>If student makes both errors, only one gets fixed.</p>", "definition": "switch(not good_units, \n       student_scalar * correct_units, \n       not right_sign,\n       -quantity(student_scalar, student_units),\n       quantity(student_scalar,student_units)\n)\n  \n"}, {"name": "percent_error", "description": "", "definition": "try(\nscalar(abs((correct_quantity - student_quantity)/correct_quantity))*100  \n,msg,\nif(student_quantity=correct_quantity,0,100))\n   "}, {"name": "right", "description": "", "definition": "percent_error <= settings['right']\n"}, {"name": "close", "description": "<p>Only marked close if the student actually has the right sign.</p>", "definition": "right_sign and percent_error <= settings['close']"}, {"name": "right_sign", "description": "", "definition": "sign(student_scalar) = sign(correct_quantity) "}], "settings": [{"name": "correctAnswer", "label": "Correct Quantity.", "help_url": "", "hint": "The correct answer given as a JME quantity.", "input_type": "code", "default_value": "", "evaluate": true}, {"name": "right", "label": "% Accuracy for right.", "help_url": "", "hint": "Question will be considered correct if the scalar part of the student's answer is within this % of correct value.", "input_type": "code", "default_value": "0.2", "evaluate": true}, {"name": "close", "label": "% Accuracy for close.", "help_url": "", "hint": "Question will be considered close if the scalar part of the student's answer is within this % of correct value.", "input_type": "code", "default_value": "1.0", "evaluate": true}, {"name": "C1", "label": "Close with units.", "help_url": "", "hint": "Partial Credit for close value with appropriate units. &nbsp;if correct answer is 100 N and close is &plusmn;1%,<br />99 &nbsp;N is accepted.", "input_type": "percent", "default_value": "75"}, {"name": "C2", "label": "No units or wrong sign", "help_url": "", "hint": "Partial credit for forgetting units or using wrong sign.<br />If the correct answer is 100 N, both 100 and -100 N are accepted.", "input_type": "percent", "default_value": "50"}, {"name": "C3", "label": "Close, no units.", "help_url": "", "hint": "Partial Credit for close value but forgotten units.<br />This value would be close&nbsp;if the expected units were provided. &nbsp;If the correct answer is 100 N, and close is &plusmn;1%,<br />99 is accepted.", "input_type": "percent", "default_value": "25"}], "public_availability": "always", "published": true, "extensions": ["quantities"]}], "resources": [["question-resources/SupQ2_QzPzD1B.png", "/srv/numbas/media/question-resources/SupQ2_QzPzD1B.png"], ["question-resources/CBEH4132_-_MSM_-_202021_-_CA4_-_Q2.png", "/srv/numbas/media/question-resources/CBEH4132_-_MSM_-_202021_-_CA4_-_Q2.png"], ["question-resources/202122_-_SM_-_Q2.png", "/srv/numbas/media/question-resources/202122_-_SM_-_Q2.png"]]}