// Numbas version: exam_results_page_options
{"name": "Waterkoker", "extensions": [], "custom_part_types": [], "resources": [["question-resources/7944a27b7b886122f2e0e1db52dce2b3.jpg", "/srv/numbas/media/question-resources/7944a27b7b886122f2e0e1db52dce2b3.jpg"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "Waterkoker", "tags": [], "metadata": {"description": "", "licence": "None specified"}, "statement": "<p>Een waterkoker warmt in 6 minuten tijd $m$={m}$kg$ water op van een begintemperatuur $T_b$={Tstart}$^{\\circ}C$ naar een eindtemperatuur van&nbsp;$T_e$=100$^{\\circ}C$.&nbsp;</p>\n<p><img src=\"resources/question-resources/7944a27b7b886122f2e0e1db52dce2b3.jpg\" width=\"318\" height=\"318\"/></p>\n<p>Verder is gegeven dat de waterkoker een vermogen van 1250 Watt opneemt en dat de soortelijke warmte van water 4182 $\\frac{J}{kg \\cdot ^{\\circ}C}$ is.&nbsp;</p>", "advice": "", "rulesets": {}, "extensions": [], "variables": {"m": {"name": "m", "group": "Ungrouped variables", "definition": "random(0.91 .. 1.15#0.2)", "description": "<p>massa water</p>", "templateType": "randrange"}, "Tstart": {"name": "Tstart", "group": "Ungrouped variables", "definition": "random(15 .. 23#1)", "description": "<p>start temperatuur</p>", "templateType": "randrange"}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["m", "Tstart"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "numberentry", "useCustomName": false, "customName": "", "marks": "100", "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": false, "showFeedbackIcon": false, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Bereken het rendement van deze waterkoker.</p>", "minValue": "({m}*4182*(100-{Tstart}))/450000", "maxValue": "({m}*4182*(100-{Tstart}))/450000", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "precisionType": "dp", "precision": "2", "precisionPartialCredit": "100", "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": true, "notationStyles": ["plain", "plain-eu"], "correctAnswerStyle": "plain"}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "contributors": [{"name": "Maurice van Mensvoort", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/8755/"}]}]}], "contributors": [{"name": "Maurice van Mensvoort", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/8755/"}]}