// Numbas version: finer_feedback_settings
{"name": "UWEAppCEMfCC2 - Materials & Fluids Mock Examination", "metadata": {"description": "<p>Mock examination for Materials &amp; Fluids to allow studenst to practice submitting the exam contents.&nbsp;&nbsp;</p>", "licence": "Creative Commons Attribution 4.0 International"}, "duration": 3600, "percentPass": 0, "showQuestionGroupNames": false, "shuffleQuestionGroups": false, "showstudentname": true, "question_groups": [{"name": "Materials", "pickingStrategy": "all-ordered", "pickQuestions": 1, "questionNames": ["", ""], "variable_overrides": [[], []], "questions": [{"name": "UWEAppCeMf012 - Stress & Strain", "extensions": [], "custom_part_types": [], "resources": [["question-resources/UWESbeMeCC1_Q3_-_Tensile_Strength_SjvCCwh.png", "/srv/numbas/media/question-resources/UWESbeMeCC1_Q3_-_Tensile_Strength_SjvCCwh.png"], ["question-resources/Stress_Strain_Calculations_Advice_aOWOx3r.docx", "/srv/numbas/media/question-resources/Stress_Strain_Calculations_Advice_aOWOx3r.docx"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "Robert Bauld", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/19446/"}], "tags": [], "metadata": {"description": "<p>Stress &amp; Strain Question based on Tensile testing of materials lab session</p>", "licence": "Creative Commons Attribution 4.0 International"}, "statement": "<p>v2.2</p>\n<p><img src=\"resources/question-resources/UWESbeMeCC1_Q3_-_Tensile_Strength_SjvCCwh.png\" width=\"415\" height=\"290\" style=\"display: block; margin-left: auto; margin-right: auto;\"/></p>\n<p style=\"text-align: right;\"><em>Drawing is not to scale</em></p>\n<p style=\"text-align: right;\"><em>Forces are not shown</em></p>\n<p>A cylindrical, steel tensile test specimen with the original dimensions {Spec_len}mm and {Spec_dia}mm diameter performs as follows in a tensile test:&nbsp;</p>\n<ul>\n<li>At the limit of its elastic deformation the force exerted was {Elastic_Force} N.</li>\n<li>At its elastic limit the specimen was found to have a length of {Spec_fin} mm.</li>\n<li>The maximum force the material withstood was {Max_Force} N.</li>\n</ul>\n<p></p>", "advice": "<p><a href=\"https://numbas.mathcentre.ac.uk/question/141507/uweappcemf012-stress-strain/resources/question-resources/Stress_Strain_Calculations_Advice_CaziBkA.docx\" target=\"_blank\" rel=\"noopener\">Stress_Strain Advice</a></p>", "rulesets": {}, "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"Acc_Grav": {"name": "Acc_Grav", "group": "Ungrouped variables", "definition": "9.81", "description": "<p>Acceleration due to Gravity ms^-2</p>", "templateType": "number", "can_override": false}, "Spec_len": {"name": "Spec_len", "group": "Ungrouped variables", "definition": "random(19 .. 21#0.5)", "description": "<p>Original Length of Sample (mm)</p>", "templateType": "randrange", "can_override": false}, "Delta_len": {"name": "Delta_len", "group": "Ungrouped variables", "definition": "random(0.6 .. 0.8#0.05)", "description": "<p>Change in length of the sample (mm)</p>", "templateType": "randrange", "can_override": false}, "Spec_dia": {"name": "Spec_dia", "group": "Ungrouped variables", "definition": "random(4.9 .. 5.1#0.02)", "description": "<p>Diameter of the sample in mm</p>", "templateType": "randrange", "can_override": false}, "Elastic_Force": {"name": "Elastic_Force", "group": "Ungrouped variables", "definition": "random(3450 .. 3550#15)", "description": "<p>Force at limit of elastic deformation.</p>", "templateType": "randrange", "can_override": false}, "Max_Force": {"name": "Max_Force", "group": "Ungrouped variables", "definition": "random(5100 .. 5150#25)", "description": "<p>The maximum force the material withstood (N).</p>", "templateType": "randrange", "can_override": false}, "Spec_xArea": {"name": "Spec_xArea", "group": "Ungrouped variables", "definition": "pi*((spec_dia/2)^2)", "description": "<p>Cross Sectional Area of the Sample (mm^2)</p>", "templateType": "anything", "can_override": false}, "Yield_Str": {"name": "Yield_Str", "group": "Ungrouped variables", "definition": "Elastic_Force/Spec_xArea", "description": "<p>Calculated Yield Strength(MPa)</p>", "templateType": "anything", "can_override": false}, "Ten_Str": {"name": "Ten_Str", "group": "Ungrouped variables", "definition": "{Max_Force}/{Spec_xArea}", "description": "<p>Calculated Maximum Tensile Strength(MPa)</p>", "templateType": "anything", "can_override": false}, "Max_Elas_Strain": {"name": "Max_Elas_Strain", "group": "Ungrouped variables", "definition": "{Delta_len}/{Spec_len}", "description": "<p>Calculated Strain</p>", "templateType": "anything", "can_override": false}, "Yon_Mod": {"name": "Yon_Mod", "group": "Ungrouped variables", "definition": "({Yield_Str}/{Max_Elas_Strain})/1000", "description": "<p>Youngs Modulus (GPa)</p>", "templateType": "anything", "can_override": false}, "spec_fin": {"name": "spec_fin", "group": "Ungrouped variables", "definition": "Spec_len+Delta_len", "description": "<p>The final length of the specimin in mm</p>", "templateType": "anything", "can_override": false}, "Hook_dia": {"name": "Hook_dia", "group": "Ungrouped variables", "definition": "random(3 .. 8#0.5)", "description": "<p>Diameter of the hook</p>", "templateType": "randrange", "can_override": true}, "Hook_safety": {"name": "Hook_safety", "group": "Ungrouped variables", "definition": "random(2 .. 5#1)", "description": "<p>Hook Safty factor&nbsp;</p>", "templateType": "randrange", "can_override": false}, "Hook_xArea": {"name": "Hook_xArea", "group": "Ungrouped variables", "definition": "pi*((hook_dia/2)^2)", "description": "<p>Cross sectional area of the hook</p>", "templateType": "anything", "can_override": false}, "Hook_Max_F": {"name": "Hook_Max_F", "group": "Ungrouped variables", "definition": "Yield_Str*Hook_xArea", "description": "<p>Maximum force that the hook can handle</p>", "templateType": "anything", "can_override": false}, "Hook_max_mass": {"name": "Hook_max_mass", "group": "Ungrouped variables", "definition": "hook_max_f/acc_grav", "description": "<p>The maximum mass on the hook</p>", "templateType": "anything", "can_override": false}, "Hook_safe_load": {"name": "Hook_safe_load", "group": "Ungrouped variables", "definition": "hook_max_mass/hook_safety", "description": "<p>The safe load that can be applied to the hook.&nbsp;</p>", "templateType": "anything", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["Acc_Grav", "Spec_len", "Delta_len", "Spec_dia", "Elastic_Force", "Max_Force", "spec_fin", "Spec_xArea", "Yield_Str", "Ten_Str", "Max_Elas_Strain", "Yon_Mod", "Hook_dia", "Hook_safety", "Hook_xArea", "Hook_Max_F", "Hook_max_mass", "Hook_safe_load"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "numberentry", "useCustomName": true, "customName": "Part a) Tensile Strength ", "marks": "2", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Calculate the Tensile Strength (MPa) of the sample.</p>", "stepsPenalty": "1", "steps": [{"type": "numberentry", "useCustomName": true, "customName": "Step i) Cross Sectional Area", "marks": "0.3", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>What is the cross sectional area of the sample? (mm<sup>2</sup>)</p>", "minValue": "Spec_xArea-(Spec_xArea*0.05)", "maxValue": "Spec_xArea+(Spec_xArea*0.05)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "precisionType": "sigfig", "precision": "3", "precisionPartialCredit": 0, "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}, {"type": "1_n_2", "useCustomName": true, "customName": "Step ii) Tensile strength units", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": false, "showFeedbackIcon": false, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Can either of the following units be given for Tensile Strength?</p>", "minMarks": 0, "maxMarks": 0, "shuffleChoices": true, "displayType": "radiogroup", "displayColumns": 0, "showCellAnswerState": true, "choices": ["<ul>\n<li>N/mm<sup>2</sup></li>\n</ul>", "<ul>\n<li>mmHg</li>\n</ul>"], "matrix": ["0.2", 0], "distractors": ["", ""]}, {"type": "information", "useCustomName": true, "customName": "Step iii) Tensile Strength Advice", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Now use the cross sectional area and the correct expression to calculate the tensile strength (MPa)</p>"}], "minValue": "Ten_Str-(Ten_Str*0.05)", "maxValue": "Ten_Str+(Ten_Str*0.05)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "precisionType": "sigfig", "precision": "3", "precisionPartialCredit": "85", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": true, "showPrecisionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}, {"type": "numberentry", "useCustomName": true, "customName": "Part b) Youngs Modulus", "marks": "5", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Calculate the Youngs Modulus (GPa) of the sample.</p>", "stepsPenalty": "2.5", "steps": [{"type": "numberentry", "useCustomName": true, "customName": "Step i) Yield Strength", "marks": "1", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Calculate the yield strength (MPa)</p>", "minValue": "Yield_Str-(Yield_Str*0.05)", "maxValue": "Yield_Str+(Yield_Str*0.05)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "precisionType": "sigfig", "precision": "3", "precisionPartialCredit": 0, "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": true, "showPrecisionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}, {"type": "numberentry", "useCustomName": true, "customName": "Step ii) Strain", "marks": "1", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Calculate the Strain</p>", "minValue": "Max_Elas_Strain-(Max_Elas_Strain*0.05)", "maxValue": "Max_Elas_Strain+(Max_Elas_Strain*0.05)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "precisionType": "sigfig", "precision": "3", "precisionPartialCredit": 0, "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": true, "showPrecisionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}, {"type": "information", "useCustomName": true, "customName": "Step iii) Youngs Modulus Advice", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Use the results from step (i) and step (ii) to calculate Young&rsquo;s Modulus (GPa)</p>"}], "minValue": "Yon_Mod-(Yon_Mod*0.05)", "maxValue": "Yon_Mod+(Yon_Mod*0.05)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "precisionType": "sigfig", "precision": "3", "precisionPartialCredit": "85", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": true, "showPrecisionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}, {"type": "numberentry", "useCustomName": true, "customName": "Part c) Safe working load", "marks": "3", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>The same steel is used to manufacture a hook with a minimum diameter d<sub>H</sub> of {Hook_dia} mm.&nbsp; The manufacturer has given a stated Factor of Safety (FoS) of {Hook_safety} based on its yeild strength.</p>\n<p>Calculate the maximum mass that can suspended from the lifting hook.</p>", "stepsPenalty": "1.5", "steps": [{"type": "numberentry", "useCustomName": true, "customName": "i) Cross Sectional Area", "marks": "0.25", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>What is the cross sectional area (mm<sup>2</sup>) of the hook?</p>", "minValue": "Hook_xArea-(Hook_xArea*0.05)", "maxValue": "Hook_xArea+(Hook_xArea*0.05)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "precisionType": "sigfig", "precision": "3", "precisionPartialCredit": "85", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": true, "showPrecisionHint": false, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}, {"type": "numberentry", "useCustomName": true, "customName": "ii) Maximum Weight", "marks": "0.25", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Given the yield strength of {siground(Yield_Str,3)} MPa what is the maximum weight (N) that can be suspended before defomation?</p>", "minValue": "Hook_Max_F-(Hook_Max_F*0.05)", "maxValue": "Hook_Max_F+(Hook_Max_F*0.05)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "precisionType": "sigfig", "precision": "3", "precisionPartialCredit": "85", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": true, "showPrecisionHint": false, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}, {"type": "numberentry", "useCustomName": true, "customName": "iii) Maximum mass ", "marks": "0.25", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>What is the corresponding mass (kg) for this weight in normal gravity?</p>", "minValue": "Hook_max_mass-(Hook_max_mass*0.05)", "maxValue": "Hook_max_mass+(Hook_max_mass*0.05)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "precisionType": "sigfig", "precision": "3", "precisionPartialCredit": "85", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": true, "showPrecisionHint": false, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}, {"type": "1_n_2", "useCustomName": true, "customName": "iv) Maximum Safe Load", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": false, "showFeedbackIcon": false, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>choose one:</p>", "minMarks": 0, "maxMarks": 0, "shuffleChoices": true, "displayType": "radiogroup", "displayColumns": 0, "showCellAnswerState": true, "choices": ["The maximum safe load(kg) will be less than the maximum possible load (kg)", "The maximum safe load(kg) will be the same as the maximum possible load (kg)", "The maximum safe load(kg) will be more than the maximum possible load (kg)"], "matrix": ["0.25", 0, 0], "distractors": ["", "", ""]}], "minValue": "Hook_safe_load-(Hook_safe_load*0.05)", "maxValue": "Hook_safe_load+(Hook_safe_load*0.05)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "precisionType": "sigfig", "precision": "3", "precisionPartialCredit": "85", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": true, "showPrecisionHint": false, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "type": "question"}, {"name": "MaterialsMechanics - true/false", "extensions": [], "custom_part_types": [], "resources": [["question-resources/image_2jpJoLT.png", "/srv/numbas/media/question-resources/image_2jpJoLT.png"], ["question-resources/image_XE2qRFH.png", "/srv/numbas/media/question-resources/image_XE2qRFH.png"], ["question-resources/image_FyLEGJb.png", "/srv/numbas/media/question-resources/image_FyLEGJb.png"], ["question-resources/image_enUwfmk.png", "/srv/numbas/media/question-resources/image_enUwfmk.png"], ["question-resources/image_SZ9eeHv.png", "/srv/numbas/media/question-resources/image_SZ9eeHv.png"], ["question-resources/image_GQm5y0J.png", "/srv/numbas/media/question-resources/image_GQm5y0J.png"], ["question-resources/image_iNuCRj0.png", "/srv/numbas/media/question-resources/image_iNuCRj0.png"], ["question-resources/image_zFLqvyl.png", "/srv/numbas/media/question-resources/image_zFLqvyl.png"], ["question-resources/image_0tWGkKo.png", "/srv/numbas/media/question-resources/image_0tWGkKo.png"], ["question-resources/image_ftJTtaI.png", "/srv/numbas/media/question-resources/image_ftJTtaI.png"], ["question-resources/image_qctxw1L.png", "/srv/numbas/media/question-resources/image_qctxw1L.png"], ["question-resources/image_oNVb3sq.png", "/srv/numbas/media/question-resources/image_oNVb3sq.png"], ["question-resources/image_4hl18gC.png", "/srv/numbas/media/question-resources/image_4hl18gC.png"], ["question-resources/image_3xSQYOW.png", "/srv/numbas/media/question-resources/image_3xSQYOW.png"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "Mario Orsi", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/427/"}, {"name": "Newcastle University Mathematics and Statistics", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/697/"}, {"name": "Mario Orsi", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/427/"}, {"name": "Robert Bauld", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/19446/"}], "tags": [], "metadata": {"description": "<p><br></p>", "licence": "None specified"}, "statement": "<p>Identify each of the following statements as true or false:</p>", "advice": "<p>Check your learning material.</p>", "rulesets": {"std": ["all", "fractionNumbers", "!collectNumbers", "!noLeadingMinus"]}, "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"statements": {"name": "statements", "group": "Statements", "definition": "t_statements+f_statements", "description": "", "templateType": "anything", "can_override": false}, "f_statements": {"name": "f_statements", "group": "Statements", "definition": "[ \"The true stress is given by the force causing the deformation divided by the original cross-sectional area of the sample.\", \"The engineering stress is given by the force causing the deformation divided by the actual cross-sectional area (which may be different from the original area).\", \"An elastic material may not return to its original shape upon removal of any force causing deformation.\", \"Plastic deformation occurs when stress is applied to plastic materials.\", \"In a metal, plastic deformation is the macroscopic process caused by the atomic-scale motion of grain boundaries.\", \"Alloying results in a decrease in yield strength.\", \"FCC metals are very brittle.\", \"High strength materials are tough.\", \"In polymers and non-FCC metals, toughness is not affected by temperature.\", \"Hardness represents a material\u2019s resistance to elastic deformation.\", \"Measuring the yield stress (which involves an indentation test) is practically advantageous to measuring hardness (which causes large-scale damage).\", \"The tensile strength, or ultimate tensile stress, is the stress above which non-reversible (or plastic) deformation occurs.\", \"The yield stress is the maximum tensile stress a material can withstand before failure\" ]", "description": "", "templateType": "list of strings", "can_override": false}, "t_statements": {"name": "t_statements", "group": "Statements", "definition": "[ \"The engineering stress is given by the force causing the deformation divided by the original cross-sectional area of the sample.\", \"The true stress is given by the force causing the deformation divided by the actual cross-sectional area (which may be different from the original area).\", \"An elastic material always returns to its original shape upon removal of any force causing deformation.\", \"Plastic deformation of a material occurs when a stress higher than the yield stress is applied.\", \"In a metal, plastic deformation is the macroscopic process caused by the atomic-scale motion of dislocation.\", \"Alloying results in an increase in yield strength.\", \"FCC metals are very tough.\", \"High strength materials are brittle.\", \"In polymers and non-FCC metals, toughness decreases with temperature.\", \"Hardness represents a material\u2019s resistance to plastic deformation and indentation.\", \"Measuring the hardness (which involves an indentation test) is practically advantageous to measuring the yield stress (which causes large-scale damage).\", \"The yield stress is the stress above which non-reversible (or plastic) deformation occurs.\", \"The tensile strength, or ultimate tensile stress, is the maximum tensile stress a material can withstand before failure.\" ]", "description": "", "templateType": "list of strings", "can_override": false}, "choices": {"name": "choices", "group": "Statements", "definition": "shuffle(0..len(statements)-1)[0..6]", "description": "", "templateType": "anything", "can_override": false}, "statement_marks": {"name": "statement_marks", "group": "Statements", "definition": "map([2,0],x,t_statements)+map([0,2],x,f_statements)", "description": "", "templateType": "anything", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": [], "variable_groups": [{"name": "Statements", "variables": ["t_statements", "f_statements", "statements", "statement_marks", "choices"]}], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "gapfill", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "\n  \n  \n  <p>[[0]]</p>\n  \n  \n  ", "gaps": [{"type": "m_n_x", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "minMarks": 0, "maxMarks": 0, "minAnswers": 0, "maxAnswers": 0, "shuffleChoices": true, "shuffleAnswers": false, "displayType": "radiogroup", "warningType": "none", "showCellAnswerState": true, "choices": ["{statements[choices[0]]}", "{statements[choices[1]]}", "{statements[choices[2]]}", "{statements[choices[3]]}", "{statements[choices[4]]}"], "matrix": "map(statement_marks[choices[j]],j,0..4)", "layout": {"type": "all", "expression": ""}, "answers": ["True", "False"]}], "sortAnswers": false}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "type": "question"}]}, {"name": "Fluids", "pickingStrategy": "all-ordered", "pickQuestions": 1, "questionNames": ["", ""], "variable_overrides": [[], []], "questions": [{"name": "ArteryBloodPressure", "extensions": [], "custom_part_types": [], "resources": [["question-resources/blood-pressure-column.png", "/srv/numbas/media/question-resources/blood-pressure-column.png"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "Mario Orsi", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/427/"}, {"name": "Robert Bauld", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/19446/"}], "tags": [], "metadata": {"description": "", "licence": "None specified"}, "statement": "<p>The brachial artery is the major blood vessel of the (upper) arm. The maximum (gauge) blood pressure in the brachial artery of a healthy person is about $\\var{p}$ mmHg. Assume blood density = $\\var{rho}$ kg/m$^3$. A vertical tube open to the atmosphere is connected to the brachial artery.</p>\n<p><img src=\"resources/question-resources/blood-pressure-column.png\"/></p>\n<p>Answer the questions below, approximating to 3 s.f. where appropriate.</p>", "advice": "", "rulesets": {}, "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"tol": {"name": "tol", "group": "Ungrouped variables", "definition": "0.05", "description": "<p>t</p>", "templateType": "anything", "can_override": false}, "h_Mars": {"name": "h_Mars", "group": "Ungrouped variables", "definition": "siground(p_Pa/(rho*g_Mars),3)", "description": "", "templateType": "anything", "can_override": false}, "p": {"name": "p", "group": "Ungrouped variables", "definition": "random(100..140)", "description": "", "templateType": "anything", "can_override": false}, "g_Mars": {"name": "g_Mars", "group": "Ungrouped variables", "definition": "3.711", "description": "", "templateType": "anything", "can_override": false}, "rho": {"name": "rho", "group": "Ungrouped variables", "definition": "random(1000..1080)", "description": "", "templateType": "anything", "can_override": false}, "h": {"name": "h", "group": "Ungrouped variables", "definition": "siground(p_Pa/(rho*g),3)", "description": "", "templateType": "anything", "can_override": false}, "p_Pa": {"name": "p_Pa", "group": "Ungrouped variables", "definition": "siground(p*133.3,3)", "description": "", "templateType": "anything", "can_override": false}, "g": {"name": "g", "group": "Ungrouped variables", "definition": "9.81", "description": "", "templateType": "anything", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["p", "rho", "tol", "p_Pa", "h", "g", "g_Mars", "h_Mars"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "gapfill", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Convert the given blood pressure to SI units:</p>\n<p>$p=$ [[0]] Pa</p>", "gaps": [{"type": "numberentry", "useCustomName": false, "customName": "", "marks": "2", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "minValue": "p_Pa*(1-tol)", "maxValue": "p_Pa*(1+tol)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "showFractionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}], "sortAnswers": false}, {"type": "gapfill", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>What maximum height will the blood reach in the tube?</p>\n<p>$h=$&nbsp;[[0]]m</p>", "gaps": [{"type": "numberentry", "useCustomName": false, "customName": "", "marks": "5", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [{"variable": "p_Pa", "part": "p0g0", "must_go_first": false}], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": "1", "exploreObjective": null, "minValue": "h*(1-tol)", "maxValue": "h*(1+tol)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "showFractionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}], "sortAnswers": false}, {"type": "gapfill", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>If this experiment took place on Mars, what would be the maximum height of the blood in the tube?</p>\n<p>$h=$&nbsp;[[0]]m</p>", "gaps": [{"type": "numberentry", "useCustomName": false, "customName": "", "marks": "3", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [{"variable": "p_Pa", "part": "p0g0", "must_go_first": false}], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": "1", "exploreObjective": null, "minValue": "h_Mars*(1-tol)", "maxValue": "h_Mars*(1+tol)", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "showFractionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}], "sortAnswers": false}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "type": "question"}, {"name": "Fluid dynamics - true/false", "extensions": [], "custom_part_types": [], "resources": [["question-resources/image_2jpJoLT.png", "/srv/numbas/media/question-resources/image_2jpJoLT.png"], ["question-resources/image_XE2qRFH.png", "/srv/numbas/media/question-resources/image_XE2qRFH.png"], ["question-resources/image_FyLEGJb.png", "/srv/numbas/media/question-resources/image_FyLEGJb.png"], ["question-resources/image_enUwfmk.png", "/srv/numbas/media/question-resources/image_enUwfmk.png"], ["question-resources/image_SZ9eeHv.png", "/srv/numbas/media/question-resources/image_SZ9eeHv.png"], ["question-resources/image_GQm5y0J.png", "/srv/numbas/media/question-resources/image_GQm5y0J.png"], ["question-resources/image_iNuCRj0.png", "/srv/numbas/media/question-resources/image_iNuCRj0.png"], ["question-resources/image_zFLqvyl.png", "/srv/numbas/media/question-resources/image_zFLqvyl.png"], ["question-resources/image_0tWGkKo.png", "/srv/numbas/media/question-resources/image_0tWGkKo.png"], ["question-resources/image_ftJTtaI.png", "/srv/numbas/media/question-resources/image_ftJTtaI.png"], ["question-resources/image_qctxw1L.png", "/srv/numbas/media/question-resources/image_qctxw1L.png"], ["question-resources/image_oNVb3sq.png", "/srv/numbas/media/question-resources/image_oNVb3sq.png"], ["question-resources/image_4hl18gC.png", "/srv/numbas/media/question-resources/image_4hl18gC.png"], ["question-resources/image_3xSQYOW.png", "/srv/numbas/media/question-resources/image_3xSQYOW.png"], ["question-resources/stress-strain_9S5XzfU.png", "/srv/numbas/media/question-resources/stress-strain_9S5XzfU.png"], ["question-resources/image_W7abJTe.png", "/srv/numbas/media/question-resources/image_W7abJTe.png"], ["question-resources/image_VroUPKK.png", "/srv/numbas/media/question-resources/image_VroUPKK.png"], ["question-resources/image_BPR2qwS.png", "/srv/numbas/media/question-resources/image_BPR2qwS.png"], ["question-resources/image_o259sxV.png", "/srv/numbas/media/question-resources/image_o259sxV.png"], ["question-resources/image_s27WPov.png", "/srv/numbas/media/question-resources/image_s27WPov.png"], ["question-resources/image_BUHhOno.png", "/srv/numbas/media/question-resources/image_BUHhOno.png"], ["question-resources/image_hnlLAkr.png", "/srv/numbas/media/question-resources/image_hnlLAkr.png"], ["question-resources/image_pBMa4Os.png", "/srv/numbas/media/question-resources/image_pBMa4Os.png"], ["question-resources/image_SO7mUx2.png", "/srv/numbas/media/question-resources/image_SO7mUx2.png"], ["question-resources/image_QIp6bzb.png", "/srv/numbas/media/question-resources/image_QIp6bzb.png"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "Mario Orsi", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/427/"}, {"name": "Newcastle University Mathematics and Statistics", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/697/"}, {"name": "Mario Orsi", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/427/"}, {"name": "Robert Bauld", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/19446/"}], "tags": [], "metadata": {"description": "<p><br></p>", "licence": "None specified"}, "statement": "<p>Identify each of the following statements as true or false:</p>", "advice": "<p>Check your learning material.</p>", "rulesets": {"std": ["all", "fractionNumbers", "!collectNumbers", "!noLeadingMinus"]}, "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"statement_marks": {"name": "statement_marks", "group": "Statements", "definition": "map([2,0],x,t_statements)+map([0,2],x,f_statements)", "description": "", "templateType": "anything", "can_override": false}, "f_statements": {"name": "f_statements", "group": "Statements", "definition": "[ \"An ideal fluid (liquid or gas) has zero density.\", \"An ideal liquid follows the equation $\\\\frac{pV}{T}= constant$.\", \"A steady flow process involves no changes with space.\", \"In steady flow the properties must be the same at all points within the volume being considered at any given instant.\", \"Streamlines represent the routes taken by fluid particles in a certain time interval.\", \"A pathline shows the velocity of a single fluid particle at a given instant.\", \"Principle of conservation of mass  for a fixed volume: $flowrate\\\\; in - flowrate\\\\; out = 0$.\", \"The Bernoulli equation states that each of the three terms in the sum $p+\\\\rho g z+\\\\frac{1}{2}\\\\rho v^2$ is constant, and so none of the three terms changes between any two locations. \", \"Newton\u2019s law of viscosity applies to all types of flows.\", \"For a Newtonian fluid, the viscosity $\\\\mu$ depends on both the velocity gradient and the shear stress.\", \"Laminar flow occurs at high flowrates.\", \"Turbulent flow occurs at low flowrates.\", \"The no-slip condition is the phenomenon whereby fluid particles touching solid surfaces move parallel to the surface.\", \"In the boundary layer the velocity is constant.\", \"Eddies are localised disturbances in laminar flow.\" ]", "description": "", "templateType": "list of strings", "can_override": false}, "statements": {"name": "statements", "group": "Statements", "definition": "t_statements+f_statements", "description": "", "templateType": "anything", "can_override": false}, "t_statements": {"name": "t_statements", "group": "Statements", "definition": "[ \"An ideal fluid (liquid or gas) has zero viscosity.\", \"An ideal liquid is incompressible.\", \"A steady flow process involves no changes with time.\", \"In uniform flow the properties are the same at all points within the volume being considered at any given instant.\", \"Streamlines represent the direction of the velocity of the particles at a given instant.\", \"A pathline shows the route taken by a single fluid particle in a time interval.\", \"Principle of conservation of mass for a fixed volume: $flowrate\\\\; in - flowrate\\\\; out = rate\\\\; of\\\\; mass\\\\; accumulation\\\\; in\\\\; the\\\\; volume$.\", \"The Bernoulli equation states that the sum $p+\\\\rho g z+\\\\frac{1}{2}\\\\rho v^2$ is constant, and so it does not change between any two locations. \", \"Newton\u2019s law of viscosity applies only to straight and parallel (laminar) flow.\", \"For a Newtonian fluid, the viscosity $\\\\mu$ does not depend on either the velocity gradient or the shear stress.\", \"Laminar flow occurs at low flowrates.\", \"Turbulent flow occurs at high flowrates.\", \"The no-slip condition is the phenomenon whereby fluid particles touching solid surfaces do not move but stick to the surface.\", \"In the boundary layer the velocity increases as the distance from the wall increases.\", \"Eddies are localised disturbances in turbulent flow.\" ]", "description": "", "templateType": "list of strings", "can_override": false}, "choices": {"name": "choices", "group": "Statements", "definition": "shuffle(0..len(statements)-1)[0..6]", "description": "", "templateType": "anything", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": [], "variable_groups": [{"name": "Statements", "variables": ["t_statements", "f_statements", "statements", "statement_marks", "choices"]}], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "gapfill", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "\n  \n  \n  <p>[[0]]</p>\n  \n  \n  ", "gaps": [{"type": "m_n_x", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "minMarks": 0, "maxMarks": 0, "minAnswers": 0, "maxAnswers": 0, "shuffleChoices": true, "shuffleAnswers": false, "displayType": "radiogroup", "warningType": "none", "showCellAnswerState": true, "choices": ["{statements[choices[0]]}", "{statements[choices[1]]}", "{statements[choices[2]]}", "{statements[choices[3]]}", "{statements[choices[4]]}"], "matrix": "map(statement_marks[choices[j]],j,0..4)", "layout": {"type": "all", "expression": ""}, "answers": ["True", "False"]}], "sortAnswers": false}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "type": "question"}]}], "allowPrinting": true, "navigation": {"allowregen": false, "reverse": true, "browse": true, "allowsteps": true, "showfrontpage": true, "showresultspage": "oncompletion", "navigatemode": "sequence", "onleave": {"action": "warnifunattempted", "message": "<p>This question has not been attempted yet.</p>"}, "preventleave": true, "startpassword": ""}, "timing": {"allowPause": true, "timeout": {"action": "warn", "message": "<p>The examination has now ended.&nbsp;&nbsp;</p>"}, "timedwarning": {"action": "warn", "message": "<p>You have 5 Minutes before the examination will end.</p>"}}, "feedback": {"showactualmark": false, "showtotalmark": true, "showanswerstate": false, "allowrevealanswer": false, "advicethreshold": 0, "intro": "<p>At the end of the exam, you will need to submit the following to Blackboard:&nbsp;</p>\n<ul>\n<li>A \"printout\" of the final results page.&nbsp;&nbsp;</li>\n<li>A scan/photograph of your workings&nbsp; for the questions.</li>\n<li>The written answer to Question ...&nbsp;&nbsp;</li>\n</ul>", "end_message": "<p>You will now need to submit the following to Blackboard:&nbsp;</p>\n<ul>\n<li>A \"printout\" of the final results page.&nbsp;&nbsp;</li>\n<li>A scan/photograph of your workings&nbsp; for the questions.</li>\n<li>The written answer to Question ...&nbsp;</li>\n</ul>", "reviewshowscore": true, "reviewshowfeedback": false, "reviewshowexpectedanswer": true, "reviewshowadvice": false, "feedbackmessages": [], "enterreviewmodeimmediately": true, "showexpectedanswerswhen": "inreview", "showpartfeedbackmessageswhen": "never", "showactualmarkwhen": "never", "showtotalmarkwhen": "always", "showanswerstatewhen": "oncompletion", "showadvicewhen": "never"}, "diagnostic": {"knowledge_graph": {"topics": [], "learning_objectives": []}, "script": "diagnosys", "customScript": ""}, "type": "exam", "contributors": [{"name": "Robert Bauld", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/19446/"}], "extensions": [], "custom_part_types": [], "resources": [["question-resources/UWESbeMeCC1_Q3_-_Tensile_Strength_SjvCCwh.png", "/srv/numbas/media/question-resources/UWESbeMeCC1_Q3_-_Tensile_Strength_SjvCCwh.png"], ["question-resources/Stress_Strain_Calculations_Advice_aOWOx3r.docx", "/srv/numbas/media/question-resources/Stress_Strain_Calculations_Advice_aOWOx3r.docx"], ["question-resources/image_2jpJoLT.png", "/srv/numbas/media/question-resources/image_2jpJoLT.png"], ["question-resources/image_XE2qRFH.png", "/srv/numbas/media/question-resources/image_XE2qRFH.png"], ["question-resources/image_FyLEGJb.png", "/srv/numbas/media/question-resources/image_FyLEGJb.png"], ["question-resources/image_enUwfmk.png", "/srv/numbas/media/question-resources/image_enUwfmk.png"], ["question-resources/image_SZ9eeHv.png", "/srv/numbas/media/question-resources/image_SZ9eeHv.png"], ["question-resources/image_GQm5y0J.png", "/srv/numbas/media/question-resources/image_GQm5y0J.png"], ["question-resources/image_iNuCRj0.png", "/srv/numbas/media/question-resources/image_iNuCRj0.png"], ["question-resources/image_zFLqvyl.png", "/srv/numbas/media/question-resources/image_zFLqvyl.png"], ["question-resources/image_0tWGkKo.png", "/srv/numbas/media/question-resources/image_0tWGkKo.png"], ["question-resources/image_ftJTtaI.png", "/srv/numbas/media/question-resources/image_ftJTtaI.png"], ["question-resources/image_qctxw1L.png", "/srv/numbas/media/question-resources/image_qctxw1L.png"], ["question-resources/image_oNVb3sq.png", "/srv/numbas/media/question-resources/image_oNVb3sq.png"], ["question-resources/image_4hl18gC.png", "/srv/numbas/media/question-resources/image_4hl18gC.png"], ["question-resources/image_3xSQYOW.png", "/srv/numbas/media/question-resources/image_3xSQYOW.png"], ["question-resources/blood-pressure-column.png", "/srv/numbas/media/question-resources/blood-pressure-column.png"], ["question-resources/stress-strain_9S5XzfU.png", "/srv/numbas/media/question-resources/stress-strain_9S5XzfU.png"], ["question-resources/image_W7abJTe.png", "/srv/numbas/media/question-resources/image_W7abJTe.png"], ["question-resources/image_VroUPKK.png", "/srv/numbas/media/question-resources/image_VroUPKK.png"], ["question-resources/image_BPR2qwS.png", "/srv/numbas/media/question-resources/image_BPR2qwS.png"], ["question-resources/image_o259sxV.png", "/srv/numbas/media/question-resources/image_o259sxV.png"], ["question-resources/image_s27WPov.png", "/srv/numbas/media/question-resources/image_s27WPov.png"], ["question-resources/image_BUHhOno.png", "/srv/numbas/media/question-resources/image_BUHhOno.png"], ["question-resources/image_hnlLAkr.png", "/srv/numbas/media/question-resources/image_hnlLAkr.png"], ["question-resources/image_pBMa4Os.png", "/srv/numbas/media/question-resources/image_pBMa4Os.png"], ["question-resources/image_SO7mUx2.png", "/srv/numbas/media/question-resources/image_SO7mUx2.png"], ["question-resources/image_QIp6bzb.png", "/srv/numbas/media/question-resources/image_QIp6bzb.png"]]}