Nuclear Energy: Science, Systems and Society

<div class="xblock xblock-public_view xblock-public_view-vertical" data-request-token="7ef3d4a003e611f0a0c00affe2bbc7c1" data-usage-id="block-v1:MITx+22.011x+3T2018+type@vertical+block@8c1850905d284f75940d5f29f7eb28ab" data-init="VerticalStudentView" data-block-type="vertical" data-runtime-class="LmsRuntime" data-course-id="course-v1:MITx+22.011x+3T2018" data-has-score="False" data-graded="True" data-runtime-version="1"> <h2 class="hd hd-2 unit-title">2.2.5. Required Assessment</h2> <div class="vert-mod"> <div class="vert vert-0" data-id="block-v1:MITx+22.011x+3T2018+type@problem+block@c199c423e1ff4b2d9164ac5c6568d557"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-request-token="7ef3d4a003e611f0a0c00affe2bbc7c1" data-usage-id="block-v1:MITx+22.011x+3T2018+type@problem+block@c199c423e1ff4b2d9164ac5c6568d557" data-init="XBlockToXModuleShim" data-block-type="problem" data-runtime-class="LmsRuntime" data-course-id="course-v1:MITx+22.011x+3T2018" data-has-score="True" data-graded="True" data-runtime-version="1"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_c199c423e1ff4b2d9164ac5c6568d557" class="problems-wrapper" role="group" aria-labelledby="c199c423e1ff4b2d9164ac5c6568d557-problem-title" data-problem-id="block-v1:MITx+22.011x+3T2018+type@problem+block@c199c423e1ff4b2d9164ac5c6568d557" data-url="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@problem+block@c199c423e1ff4b2d9164ac5c6568d557/handler/xmodule_handler" data-problem-score="0" data-problem-total-possible="1" data-attempts-used="0" data-content=" <h3 class="hd hd-3 problem-header" id="c199c423e1ff4b2d9164ac5c6568d557-problem-title" aria-describedby="block-v1:MITx+22.011x+3T2018+type@problem+block@c199c423e1ff4b2d9164ac5c6568d557-problem-progress" tabindex="-1"> Assessment 1 </h3> <div class="problem-progress" id="block-v1:MITx+22.011x+3T2018+type@problem+block@c199c423e1ff4b2d9164ac5c6568d557-problem-progress"></div> <div class="problem"> <div> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_c199c423e1ff4b2d9164ac5c6568d557_2_1"> <fieldset aria-describedby="status_c199c423e1ff4b2d9164ac5c6568d557_2_1 description_c199c423e1ff4b2d9164ac5c6568d557_1_1"> <legend id="c199c423e1ff4b2d9164ac5c6568d557_2_1-legend" class="response-fieldset-legend field-group-hd">Why are severe accidents highly undesirable?</legend> <p class="question-description" id="description_c199c423e1ff4b2d9164ac5c6568d557_1_1">Check all that apply </p> <div class="field"> <input type="checkbox" name="input_c199c423e1ff4b2d9164ac5c6568d557_2_1[]" id="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="c199c423e1ff4b2d9164ac5c6568d557_2_1-choice_0-label" for="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_c199c423e1ff4b2d9164ac5c6568d557_2_1 description_c199c423e1ff4b2d9164ac5c6568d557_1_1"> Economic loss from lost electricity generation </label> </div> <div class="field"> <input type="checkbox" name="input_c199c423e1ff4b2d9164ac5c6568d557_2_1[]" id="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="c199c423e1ff4b2d9164ac5c6568d557_2_1-choice_1-label" for="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_c199c423e1ff4b2d9164ac5c6568d557_2_1 description_c199c423e1ff4b2d9164ac5c6568d557_1_1"> Operations and Maintenance (OM) cost of safety systems </label> </div> <div class="field"> <input type="checkbox" name="input_c199c423e1ff4b2d9164ac5c6568d557_2_1[]" id="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="c199c423e1ff4b2d9164ac5c6568d557_2_1-choice_2-label" for="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_c199c423e1ff4b2d9164ac5c6568d557_2_1 description_c199c423e1ff4b2d9164ac5c6568d557_1_1"> Local residents evacuation </label> </div> <div class="field"> <input type="checkbox" name="input_c199c423e1ff4b2d9164ac5c6568d557_2_1[]" id="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="c199c423e1ff4b2d9164ac5c6568d557_2_1-choice_3-label" for="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_c199c423e1ff4b2d9164ac5c6568d557_2_1 description_c199c423e1ff4b2d9164ac5c6568d557_1_1"> Radiation exposure of operators </label> </div> <div class="field"> <input type="checkbox" name="input_c199c423e1ff4b2d9164ac5c6568d557_2_1[]" id="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="c199c423e1ff4b2d9164ac5c6568d557_2_1-choice_4-label" for="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_c199c423e1ff4b2d9164ac5c6568d557_2_1 description_c199c423e1ff4b2d9164ac5c6568d557_1_1"> Environmental contamination </label> </div> <div class="field"> <input type="checkbox" name="input_c199c423e1ff4b2d9164ac5c6568d557_2_1[]" id="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_5" class="field-input input-checkbox" value="choice_5"/><label id="c199c423e1ff4b2d9164ac5c6568d557_2_1-choice_5-label" for="input_c199c423e1ff4b2d9164ac5c6568d557_2_1_choice_5" class="response-label field-label label-inline" aria-describedby="status_c199c423e1ff4b2d9164ac5c6568d557_2_1 description_c199c423e1ff4b2d9164ac5c6568d557_1_1"> Bad press </label> </div> <span id="answer_c199c423e1ff4b2d9164ac5c6568d557_2_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_c199c423e1ff4b2d9164ac5c6568d557_2_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> </div> <div class="action"> <input type="hidden" name="problem_id" value="Assessment 1" /> <div class="submit-attempt-container"> <button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_c199c423e1ff4b2d9164ac5c6568d557" > <span class="submit-label">Submit</span> </button> <div class="submission-feedback" id="submission_feedback_c199c423e1ff4b2d9164ac5c6568d557"> <span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span> </div> </div> <div class="problem-action-buttons-wrapper"> </div> </div> <div class="notification warning notification-gentle-alert is-hidden" tabindex="-1"> <span class="icon fa fa-exclamation-circle" aria-hidden="true"></span> <span class="notification-message" aria-describedby="c199c423e1ff4b2d9164ac5c6568d557-problem-title"> </span> <div class="notification-btn-wrapper"> <button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button> </div> </div> <div class="notification warning notification-save is-hidden" tabindex="-1"> <span class="icon fa fa-save" aria-hidden="true"></span> <span class="notification-message" aria-describedby="c199c423e1ff4b2d9164ac5c6568d557-problem-title">None </span> <div class="notification-btn-wrapper"> <button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button> </div> </div> <div class="notification general notification-show-answer is-hidden" tabindex="-1"> <span class="icon fa fa-info-circle" aria-hidden="true"></span> <span class="notification-message" aria-describedby="c199c423e1ff4b2d9164ac5c6568d557-problem-title">Answers are displayed within the problem </span> <div class="notification-btn-wrapper"> <button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button> </div> </div> </div> " data-graded="True"> <p class="loading-spinner"> <i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i> <span class="sr">Loading…</span> </p> </div> </div> </div> <div class="vert vert-1" data-id="block-v1:MITx+22.011x+3T2018+type@problem+block@46b4f17e237f4116b52ef9eb2d8a21c4"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-request-token="7ef3d4a003e611f0a0c00affe2bbc7c1" data-usage-id="block-v1:MITx+22.011x+3T2018+type@problem+block@46b4f17e237f4116b52ef9eb2d8a21c4" data-init="XBlockToXModuleShim" data-block-type="problem" data-runtime-class="LmsRuntime" data-course-id="course-v1:MITx+22.011x+3T2018" data-has-score="True" data-graded="True" data-runtime-version="1"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Problem"} </script> <div id="problem_46b4f17e237f4116b52ef9eb2d8a21c4" class="problems-wrapper" role="group" aria-labelledby="46b4f17e237f4116b52ef9eb2d8a21c4-problem-title" data-problem-id="block-v1:MITx+22.011x+3T2018+type@problem+block@46b4f17e237f4116b52ef9eb2d8a21c4" data-url="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@problem+block@46b4f17e237f4116b52ef9eb2d8a21c4/handler/xmodule_handler" data-problem-score="0" data-problem-total-possible="4" data-attempts-used="0" data-content=" <h3 class="hd hd-3 problem-header" id="46b4f17e237f4116b52ef9eb2d8a21c4-problem-title" aria-describedby="block-v1:MITx+22.011x+3T2018+type@problem+block@46b4f17e237f4116b52ef9eb2d8a21c4-problem-progress" tabindex="-1"> Assessment 2 </h3> <div class="problem-progress" id="block-v1:MITx+22.011x+3T2018+type@problem+block@46b4f17e237f4116b52ef9eb2d8a21c4-problem-progress"></div> <div class="problem"> <div> <p>Assume an industrial facility accidentally releases a certain amount of radioactivity into the environment and as a result a small population nearby is exposed to 10 mSv/yr: </p> <p>Is this dose rate &gt; or &lt; the legal limit?</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_46b4f17e237f4116b52ef9eb2d8a21c4_2_1"> <fieldset aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_2_1"> <div class="field"> <input type="radio" name="input_46b4f17e237f4116b52ef9eb2d8a21c4_2_1" id="input_46b4f17e237f4116b52ef9eb2d8a21c4_2_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="46b4f17e237f4116b52ef9eb2d8a21c4_2_1-choice_0-label" for="input_46b4f17e237f4116b52ef9eb2d8a21c4_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_2_1"> <p>&lt; the legal limit for general public</p> </label> </div> <div class="field"> <input type="radio" name="input_46b4f17e237f4116b52ef9eb2d8a21c4_2_1" id="input_46b4f17e237f4116b52ef9eb2d8a21c4_2_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="46b4f17e237f4116b52ef9eb2d8a21c4_2_1-choice_1-label" for="input_46b4f17e237f4116b52ef9eb2d8a21c4_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_2_1"> <p>&gt; the legal limit for general public</p> </label> </div> <span id="answer_46b4f17e237f4116b52ef9eb2d8a21c4_2_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_46b4f17e237f4116b52ef9eb2d8a21c4_2_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>Is it &gt; or &lt; or = to the natural dose rate in Guarapari (Brazil)?</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 2" role="group"><div class="choicegroup capa_inputtype" id="inputtype_46b4f17e237f4116b52ef9eb2d8a21c4_3_1"> <fieldset aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_3_1"> <div class="field"> <input type="radio" name="input_46b4f17e237f4116b52ef9eb2d8a21c4_3_1" id="input_46b4f17e237f4116b52ef9eb2d8a21c4_3_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="46b4f17e237f4116b52ef9eb2d8a21c4_3_1-choice_0-label" for="input_46b4f17e237f4116b52ef9eb2d8a21c4_3_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_3_1"> <p>&gt; the natural dose rate in Guarapari</p> </label> </div> <div class="field"> <input type="radio" name="input_46b4f17e237f4116b52ef9eb2d8a21c4_3_1" id="input_46b4f17e237f4116b52ef9eb2d8a21c4_3_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="46b4f17e237f4116b52ef9eb2d8a21c4_3_1-choice_1-label" for="input_46b4f17e237f4116b52ef9eb2d8a21c4_3_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_3_1"> <p>&lt; the natural dose rate in Guarapari</p> </label> </div> <div class="field"> <input type="radio" name="input_46b4f17e237f4116b52ef9eb2d8a21c4_3_1" id="input_46b4f17e237f4116b52ef9eb2d8a21c4_3_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="46b4f17e237f4116b52ef9eb2d8a21c4_3_1-choice_2-label" for="input_46b4f17e237f4116b52ef9eb2d8a21c4_3_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_3_1"> <p>= the natural dose rate in Guarapari</p> </label> </div> <span id="answer_46b4f17e237f4116b52ef9eb2d8a21c4_3_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_46b4f17e237f4116b52ef9eb2d8a21c4_3_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>How many chest CT scans per year is it equivalent to?</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 3" role="group"><div class="choicegroup capa_inputtype" id="inputtype_46b4f17e237f4116b52ef9eb2d8a21c4_4_1"> <fieldset aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_4_1"> <div class="field"> <input type="radio" name="input_46b4f17e237f4116b52ef9eb2d8a21c4_4_1" id="input_46b4f17e237f4116b52ef9eb2d8a21c4_4_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="46b4f17e237f4116b52ef9eb2d8a21c4_4_1-choice_0-label" for="input_46b4f17e237f4116b52ef9eb2d8a21c4_4_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_4_1"> <p>It is about 0.8 times a chest CT scan</p> </label> </div> <div class="field"> <input type="radio" name="input_46b4f17e237f4116b52ef9eb2d8a21c4_4_1" id="input_46b4f17e237f4116b52ef9eb2d8a21c4_4_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="46b4f17e237f4116b52ef9eb2d8a21c4_4_1-choice_1-label" for="input_46b4f17e237f4116b52ef9eb2d8a21c4_4_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_4_1"> <p>It is about 1.4 times a chest CT scan</p> </label> </div> <div class="field"> <input type="radio" name="input_46b4f17e237f4116b52ef9eb2d8a21c4_4_1" id="input_46b4f17e237f4116b52ef9eb2d8a21c4_4_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="46b4f17e237f4116b52ef9eb2d8a21c4_4_1-choice_2-label" for="input_46b4f17e237f4116b52ef9eb2d8a21c4_4_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_4_1"> <p>It is about 2.1 times a chest CT scan</p> </label> </div> <span id="answer_46b4f17e237f4116b52ef9eb2d8a21c4_4_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_46b4f17e237f4116b52ef9eb2d8a21c4_4_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>Is it &gt; or &lt; or = the known threshold for health effects?</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 4" role="group"><div class="choicegroup capa_inputtype" id="inputtype_46b4f17e237f4116b52ef9eb2d8a21c4_5_1"> <fieldset aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_5_1"> <div class="field"> <input type="radio" name="input_46b4f17e237f4116b52ef9eb2d8a21c4_5_1" id="input_46b4f17e237f4116b52ef9eb2d8a21c4_5_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="46b4f17e237f4116b52ef9eb2d8a21c4_5_1-choice_0-label" for="input_46b4f17e237f4116b52ef9eb2d8a21c4_5_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_5_1"> <p>It is much higher than the known threshold for health effects</p> </label> </div> <div class="field"> <input type="radio" name="input_46b4f17e237f4116b52ef9eb2d8a21c4_5_1" id="input_46b4f17e237f4116b52ef9eb2d8a21c4_5_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="46b4f17e237f4116b52ef9eb2d8a21c4_5_1-choice_1-label" for="input_46b4f17e237f4116b52ef9eb2d8a21c4_5_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_5_1"> <p>It is much lower than the known threshold for health effects</p> </label> </div> <div class="field"> <input type="radio" name="input_46b4f17e237f4116b52ef9eb2d8a21c4_5_1" id="input_46b4f17e237f4116b52ef9eb2d8a21c4_5_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="46b4f17e237f4116b52ef9eb2d8a21c4_5_1-choice_2-label" for="input_46b4f17e237f4116b52ef9eb2d8a21c4_5_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_46b4f17e237f4116b52ef9eb2d8a21c4_5_1"> <p>It is about the same as the known threshold for health effects</p> </label> </div> <span id="answer_46b4f17e237f4116b52ef9eb2d8a21c4_5_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_46b4f17e237f4116b52ef9eb2d8a21c4_5_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> </div> <div class="action"> <input type="hidden" name="problem_id" value="Assessment 2" /> <div class="submit-attempt-container"> <button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_46b4f17e237f4116b52ef9eb2d8a21c4" > <span class="submit-label">Submit</span> </button> <div class="submission-feedback" id="submission_feedback_46b4f17e237f4116b52ef9eb2d8a21c4"> <span class="sr">Some problems have options such as save, reset, hints, or show answer. 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