Nuclear Energy: Science, Systems and Society

<div class="xblock xblock-public_view xblock-public_view-vertical" data-request-token="83ab6a3603e511f0a0c00affe2bbc7c1" data-usage-id="block-v1:MITx+22.011x+3T2018+type@vertical+block@a257ffe116bc4f50b4b9b427d795dd23" 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">2.2.4. Required Assessment</h2> <div class="vert-mod"> <div class="vert vert-0" data-id="block-v1:MITx+22.011x+3T2018+type@html+block@307585b4f5f549be82666799f126779d"> <div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-request-token="83ab6a3603e511f0a0c00affe2bbc7c1" data-usage-id="block-v1:MITx+22.011x+3T2018+type@html+block@307585b4f5f549be82666799f126779d" data-init="XBlockToXModuleShim" data-block-type="html" data-runtime-class="LmsRuntime" data-course-id="course-v1:MITx+22.011x+3T2018" data-has-score="False" data-graded="True" data-runtime-version="1"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><span style="color: rgb(49, 49, 49); font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;">Please answer the following question (this assessment is not graded):</span></p> <p>Why is it important to cool the nuclear fuel at all times, even after the reactor has been shut down?</p> </div> </div> <div class="vert vert-1" data-id="block-v1:MITx+22.011x+3T2018+type@problem+block@4b30264cd9944c1297a5e2a7ca0fd04c"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-request-token="83ab6a3603e511f0a0c00affe2bbc7c1" data-usage-id="block-v1:MITx+22.011x+3T2018+type@problem+block@4b30264cd9944c1297a5e2a7ca0fd04c" 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_4b30264cd9944c1297a5e2a7ca0fd04c" class="problems-wrapper" role="group" aria-labelledby="4b30264cd9944c1297a5e2a7ca0fd04c-problem-title" data-problem-id="block-v1:MITx+22.011x+3T2018+type@problem+block@4b30264cd9944c1297a5e2a7ca0fd04c" data-url="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@problem+block@4b30264cd9944c1297a5e2a7ca0fd04c/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="4b30264cd9944c1297a5e2a7ca0fd04c-problem-title" aria-describedby="block-v1:MITx+22.011x+3T2018+type@problem+block@4b30264cd9944c1297a5e2a7ca0fd04c-problem-progress" tabindex="-1"> Assessment 2 </h3> <div class="problem-progress" id="block-v1:MITx+22.011x+3T2018+type@problem+block@4b30264cd9944c1297a5e2a7ca0fd04c-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_4b30264cd9944c1297a5e2a7ca0fd04c_2_1"> <fieldset aria-describedby="status_4b30264cd9944c1297a5e2a7ca0fd04c_2_1 description_4b30264cd9944c1297a5e2a7ca0fd04c_1_1"> <legend id="4b30264cd9944c1297a5e2a7ca0fd04c_2_1-legend" class="response-fieldset-legend field-group-hd">What are the important safety functions for the engineered safety systems?</legend> <p class="question-description" id="description_4b30264cd9944c1297a5e2a7ca0fd04c_1_1">Check all that apply </p> <div class="field"> <input type="checkbox" name="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1[]" id="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="4b30264cd9944c1297a5e2a7ca0fd04c_2_1-choice_0-label" for="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_4b30264cd9944c1297a5e2a7ca0fd04c_2_1 description_4b30264cd9944c1297a5e2a7ca0fd04c_1_1"> Reduce the cost of the plant </label> </div> <div class="field"> <input type="checkbox" name="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1[]" id="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="4b30264cd9944c1297a5e2a7ca0fd04c_2_1-choice_1-label" for="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_4b30264cd9944c1297a5e2a7ca0fd04c_2_1 description_4b30264cd9944c1297a5e2a7ca0fd04c_1_1"> Ensure the fission chain reaction can be rapidly arrested, when so desired </label> </div> <div class="field"> <input type="checkbox" name="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1[]" id="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="4b30264cd9944c1297a5e2a7ca0fd04c_2_1-choice_2-label" for="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_4b30264cd9944c1297a5e2a7ca0fd04c_2_1 description_4b30264cd9944c1297a5e2a7ca0fd04c_1_1"> Maintain fuel cooling if the normal heat removal path is lost </label> </div> <div class="field"> <input type="checkbox" name="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1[]" id="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="4b30264cd9944c1297a5e2a7ca0fd04c_2_1-choice_3-label" for="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_4b30264cd9944c1297a5e2a7ca0fd04c_2_1 description_4b30264cd9944c1297a5e2a7ca0fd04c_1_1"> Minimize the duration of maintenance activities during refueling outages </label> </div> <div class="field"> <input type="checkbox" name="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1[]" id="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="4b30264cd9944c1297a5e2a7ca0fd04c_2_1-choice_4-label" for="input_4b30264cd9944c1297a5e2a7ca0fd04c_2_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_4b30264cd9944c1297a5e2a7ca0fd04c_2_1 description_4b30264cd9944c1297a5e2a7ca0fd04c_1_1"> Prevent pressure in the system from escalating uncontrollably </label> </div> <span id="answer_4b30264cd9944c1297a5e2a7ca0fd04c_2_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_4b30264cd9944c1297a5e2a7ca0fd04c_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 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_4b30264cd9944c1297a5e2a7ca0fd04c" > <span class="submit-label">Submit</span> </button> <div class="submission-feedback" id="submission_feedback_4b30264cd9944c1297a5e2a7ca0fd04c"> <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="4b30264cd9944c1297a5e2a7ca0fd04c-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="4b30264cd9944c1297a5e2a7ca0fd04c-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="4b30264cd9944c1297a5e2a7ca0fd04c-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-2" data-id="block-v1:MITx+22.011x+3T2018+type@html+block@91c338021b754f56aa6d32d4b850cdfb"> <div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-request-token="83ab6a3603e511f0a0c00affe2bbc7c1" data-usage-id="block-v1:MITx+22.011x+3T2018+type@html+block@91c338021b754f56aa6d32d4b850cdfb" data-init="XBlockToXModuleShim" data-block-type="html" data-runtime-class="LmsRuntime" data-course-id="course-v1:MITx+22.011x+3T2018" data-has-score="False" data-graded="True" data-runtime-version="1"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p class="p1">The engineered safety system shown below supplies cold water from a stand-alone tank (called the condensate storage tank) to the steam generators of a PWR during an emergency.</p> <p><img height="335" width="500" src="/assets/courseware/v1/796c38e279686561e378fdb4de49238e/asset-v1:MITx+22.011x+3T2018+type@asset+block/2.2.9.png" alt="This figure is necessary to solve Assessment 3 of this section (“Nuclear Safety”). The figure shows the engineered safety system that supplies cold water from a stand-alone tank (called the condensate storage tank or CSG) to the steam generators of a PWR during an emergency. Two identical, parallel pipes leave the CST. Each line branches into two parallel lines. One line has a motor-driven pump and is connected to two steam generators. The other has a turbine-driven pump and is connected to the same two steam generators. Thus, there are in total two motor-driven pumps, two turbine-driven pumps, and four steam generators." /></p> <style type="text/css"></style> </div> </div> <div class="vert vert-3" data-id="block-v1:MITx+22.011x+3T2018+type@problem+block@107caca703dd4df8b1b3f46a6b027f17"> <div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-request-token="83ab6a3603e511f0a0c00affe2bbc7c1" data-usage-id="block-v1:MITx+22.011x+3T2018+type@problem+block@107caca703dd4df8b1b3f46a6b027f17" 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_107caca703dd4df8b1b3f46a6b027f17" class="problems-wrapper" role="group" aria-labelledby="107caca703dd4df8b1b3f46a6b027f17-problem-title" data-problem-id="block-v1:MITx+22.011x+3T2018+type@problem+block@107caca703dd4df8b1b3f46a6b027f17" data-url="/courses/course-v1:MITx+22.011x+3T2018/xblock/block-v1:MITx+22.011x+3T2018+type@problem+block@107caca703dd4df8b1b3f46a6b027f17/handler/xmodule_handler" data-problem-score="0.0" data-problem-total-possible="5.0" data-attempts-used="0" data-content=" <h3 class="hd hd-3 problem-header" id="107caca703dd4df8b1b3f46a6b027f17-problem-title" aria-describedby="block-v1:MITx+22.011x+3T2018+type@problem+block@107caca703dd4df8b1b3f46a6b027f17-problem-progress" tabindex="-1"> Assessment 3 </h3> <div class="problem-progress" id="block-v1:MITx+22.011x+3T2018+type@problem+block@107caca703dd4df8b1b3f46a6b027f17-problem-progress"></div> <div class="problem"> <div> <p>For each Design Feature listed below mark the requirements it contributes to satisfying: redundancy (R), diversity (D) and physical separation (S). Check all that apply</p> <p>Condensate Storage Tank</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_107caca703dd4df8b1b3f46a6b027f17_2_1"> <fieldset aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_2_1"> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_2_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_2_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="107caca703dd4df8b1b3f46a6b027f17_2_1-choice_0-label" for="input_107caca703dd4df8b1b3f46a6b027f17_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_2_1"> R </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_2_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_2_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="107caca703dd4df8b1b3f46a6b027f17_2_1-choice_1-label" for="input_107caca703dd4df8b1b3f46a6b027f17_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_2_1"> D </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_2_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_2_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="107caca703dd4df8b1b3f46a6b027f17_2_1-choice_2-label" for="input_107caca703dd4df8b1b3f46a6b027f17_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_2_1"> S </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_2_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_2_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="107caca703dd4df8b1b3f46a6b027f17_2_1-choice_3-label" for="input_107caca703dd4df8b1b3f46a6b027f17_2_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_2_1"> All of the above </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_2_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_2_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="107caca703dd4df8b1b3f46a6b027f17_2_1-choice_4-label" for="input_107caca703dd4df8b1b3f46a6b027f17_2_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_2_1"> None of the above </label> </div> <span id="answer_107caca703dd4df8b1b3f46a6b027f17_2_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_107caca703dd4df8b1b3f46a6b027f17_2_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>Motor Driven Pump (top)</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 2" role="group"><div class="choicegroup capa_inputtype" id="inputtype_107caca703dd4df8b1b3f46a6b027f17_3_1"> <fieldset aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_3_1"> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_3_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_3_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="107caca703dd4df8b1b3f46a6b027f17_3_1-choice_0-label" for="input_107caca703dd4df8b1b3f46a6b027f17_3_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_3_1"> R </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_3_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_3_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="107caca703dd4df8b1b3f46a6b027f17_3_1-choice_1-label" for="input_107caca703dd4df8b1b3f46a6b027f17_3_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_3_1"> D </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_3_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_3_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="107caca703dd4df8b1b3f46a6b027f17_3_1-choice_2-label" for="input_107caca703dd4df8b1b3f46a6b027f17_3_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_3_1"> S </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_3_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_3_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="107caca703dd4df8b1b3f46a6b027f17_3_1-choice_3-label" for="input_107caca703dd4df8b1b3f46a6b027f17_3_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_3_1"> All of the above </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_3_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_3_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="107caca703dd4df8b1b3f46a6b027f17_3_1-choice_4-label" for="input_107caca703dd4df8b1b3f46a6b027f17_3_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_3_1"> None of the above </label> </div> <span id="answer_107caca703dd4df8b1b3f46a6b027f17_3_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_107caca703dd4df8b1b3f46a6b027f17_3_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>Turbine-Driven Pump (top)</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 3" role="group"><div class="choicegroup capa_inputtype" id="inputtype_107caca703dd4df8b1b3f46a6b027f17_4_1"> <fieldset aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_4_1"> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_4_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_4_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="107caca703dd4df8b1b3f46a6b027f17_4_1-choice_0-label" for="input_107caca703dd4df8b1b3f46a6b027f17_4_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_4_1"> R </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_4_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_4_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="107caca703dd4df8b1b3f46a6b027f17_4_1-choice_1-label" for="input_107caca703dd4df8b1b3f46a6b027f17_4_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_4_1"> D </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_4_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_4_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="107caca703dd4df8b1b3f46a6b027f17_4_1-choice_2-label" for="input_107caca703dd4df8b1b3f46a6b027f17_4_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_4_1"> S </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_4_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_4_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="107caca703dd4df8b1b3f46a6b027f17_4_1-choice_3-label" for="input_107caca703dd4df8b1b3f46a6b027f17_4_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_4_1"> All of the above </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_4_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_4_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="107caca703dd4df8b1b3f46a6b027f17_4_1-choice_4-label" for="input_107caca703dd4df8b1b3f46a6b027f17_4_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_4_1"> None of the above </label> </div> <span id="answer_107caca703dd4df8b1b3f46a6b027f17_4_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_107caca703dd4df8b1b3f46a6b027f17_4_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>Steam Generator 1 (SG1)</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 4" role="group"><div class="choicegroup capa_inputtype" id="inputtype_107caca703dd4df8b1b3f46a6b027f17_5_1"> <fieldset aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_5_1"> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_5_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_5_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="107caca703dd4df8b1b3f46a6b027f17_5_1-choice_0-label" for="input_107caca703dd4df8b1b3f46a6b027f17_5_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_5_1"> R </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_5_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_5_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="107caca703dd4df8b1b3f46a6b027f17_5_1-choice_1-label" for="input_107caca703dd4df8b1b3f46a6b027f17_5_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_5_1"> D </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_5_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_5_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="107caca703dd4df8b1b3f46a6b027f17_5_1-choice_2-label" for="input_107caca703dd4df8b1b3f46a6b027f17_5_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_5_1"> S </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_5_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_5_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="107caca703dd4df8b1b3f46a6b027f17_5_1-choice_3-label" for="input_107caca703dd4df8b1b3f46a6b027f17_5_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_5_1"> All of the above </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_5_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_5_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="107caca703dd4df8b1b3f46a6b027f17_5_1-choice_4-label" for="input_107caca703dd4df8b1b3f46a6b027f17_5_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_5_1"> None of the above </label> </div> <span id="answer_107caca703dd4df8b1b3f46a6b027f17_5_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_107caca703dd4df8b1b3f46a6b027f17_5_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>Steam Generator 2 (SG2)</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 5" role="group"><div class="choicegroup capa_inputtype" id="inputtype_107caca703dd4df8b1b3f46a6b027f17_6_1"> <fieldset aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_6_1"> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_6_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_6_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="107caca703dd4df8b1b3f46a6b027f17_6_1-choice_0-label" for="input_107caca703dd4df8b1b3f46a6b027f17_6_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_6_1"> R </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_6_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_6_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="107caca703dd4df8b1b3f46a6b027f17_6_1-choice_1-label" for="input_107caca703dd4df8b1b3f46a6b027f17_6_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_6_1"> D </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_6_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_6_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="107caca703dd4df8b1b3f46a6b027f17_6_1-choice_2-label" for="input_107caca703dd4df8b1b3f46a6b027f17_6_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_6_1"> S </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_6_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_6_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="107caca703dd4df8b1b3f46a6b027f17_6_1-choice_3-label" for="input_107caca703dd4df8b1b3f46a6b027f17_6_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_6_1"> All of the above </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_6_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_6_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="107caca703dd4df8b1b3f46a6b027f17_6_1-choice_4-label" for="input_107caca703dd4df8b1b3f46a6b027f17_6_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_6_1"> None of the above </label> </div> <span id="answer_107caca703dd4df8b1b3f46a6b027f17_6_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_107caca703dd4df8b1b3f46a6b027f17_6_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>Motor Driven Pump (bottom)</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 6" role="group"><div class="choicegroup capa_inputtype" id="inputtype_107caca703dd4df8b1b3f46a6b027f17_7_1"> <fieldset aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_7_1"> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_7_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_7_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="107caca703dd4df8b1b3f46a6b027f17_7_1-choice_0-label" for="input_107caca703dd4df8b1b3f46a6b027f17_7_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_7_1"> R </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_7_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_7_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="107caca703dd4df8b1b3f46a6b027f17_7_1-choice_1-label" for="input_107caca703dd4df8b1b3f46a6b027f17_7_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_7_1"> D </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_7_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_7_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="107caca703dd4df8b1b3f46a6b027f17_7_1-choice_2-label" for="input_107caca703dd4df8b1b3f46a6b027f17_7_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_7_1"> S </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_7_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_7_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="107caca703dd4df8b1b3f46a6b027f17_7_1-choice_3-label" for="input_107caca703dd4df8b1b3f46a6b027f17_7_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_7_1"> All of the above </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_7_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_7_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="107caca703dd4df8b1b3f46a6b027f17_7_1-choice_4-label" for="input_107caca703dd4df8b1b3f46a6b027f17_7_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_7_1"> None of the above </label> </div> <span id="answer_107caca703dd4df8b1b3f46a6b027f17_7_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_107caca703dd4df8b1b3f46a6b027f17_7_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>Turbine-Driven Pump (bottom)</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 7" role="group"><div class="choicegroup capa_inputtype" id="inputtype_107caca703dd4df8b1b3f46a6b027f17_8_1"> <fieldset aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_8_1"> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_8_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_8_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="107caca703dd4df8b1b3f46a6b027f17_8_1-choice_0-label" for="input_107caca703dd4df8b1b3f46a6b027f17_8_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_8_1"> R </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_8_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_8_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="107caca703dd4df8b1b3f46a6b027f17_8_1-choice_1-label" for="input_107caca703dd4df8b1b3f46a6b027f17_8_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_8_1"> D </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_8_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_8_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="107caca703dd4df8b1b3f46a6b027f17_8_1-choice_2-label" for="input_107caca703dd4df8b1b3f46a6b027f17_8_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_8_1"> S </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_8_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_8_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="107caca703dd4df8b1b3f46a6b027f17_8_1-choice_3-label" for="input_107caca703dd4df8b1b3f46a6b027f17_8_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_8_1"> All of the above </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_8_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_8_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="107caca703dd4df8b1b3f46a6b027f17_8_1-choice_4-label" for="input_107caca703dd4df8b1b3f46a6b027f17_8_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_8_1"> None of the above </label> </div> <span id="answer_107caca703dd4df8b1b3f46a6b027f17_8_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_107caca703dd4df8b1b3f46a6b027f17_8_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>Steam Generator 3 (SG3)</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 8" role="group"><div class="choicegroup capa_inputtype" id="inputtype_107caca703dd4df8b1b3f46a6b027f17_9_1"> <fieldset aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_9_1"> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_9_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_9_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="107caca703dd4df8b1b3f46a6b027f17_9_1-choice_0-label" for="input_107caca703dd4df8b1b3f46a6b027f17_9_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_9_1"> R </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_9_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_9_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="107caca703dd4df8b1b3f46a6b027f17_9_1-choice_1-label" for="input_107caca703dd4df8b1b3f46a6b027f17_9_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_9_1"> D </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_9_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_9_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="107caca703dd4df8b1b3f46a6b027f17_9_1-choice_2-label" for="input_107caca703dd4df8b1b3f46a6b027f17_9_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_9_1"> S </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_9_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_9_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="107caca703dd4df8b1b3f46a6b027f17_9_1-choice_3-label" for="input_107caca703dd4df8b1b3f46a6b027f17_9_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_9_1"> All of the above </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_9_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_9_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="107caca703dd4df8b1b3f46a6b027f17_9_1-choice_4-label" for="input_107caca703dd4df8b1b3f46a6b027f17_9_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_9_1"> None of the above </label> </div> <span id="answer_107caca703dd4df8b1b3f46a6b027f17_9_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_107caca703dd4df8b1b3f46a6b027f17_9_1" data-tooltip="Not yet answered."> <span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/> </span> </div> </div></div> <p>Steam Generator 4 (SG4)</p> <div class="wrapper-problem-response" tabindex="-1" aria-label="Question 9" role="group"><div class="choicegroup capa_inputtype" id="inputtype_107caca703dd4df8b1b3f46a6b027f17_10_1"> <fieldset aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_10_1"> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_10_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_10_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="107caca703dd4df8b1b3f46a6b027f17_10_1-choice_0-label" for="input_107caca703dd4df8b1b3f46a6b027f17_10_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_10_1"> R </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_10_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_10_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="107caca703dd4df8b1b3f46a6b027f17_10_1-choice_1-label" for="input_107caca703dd4df8b1b3f46a6b027f17_10_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_10_1"> D </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_10_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_10_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="107caca703dd4df8b1b3f46a6b027f17_10_1-choice_2-label" for="input_107caca703dd4df8b1b3f46a6b027f17_10_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_10_1"> S </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_10_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_10_1_choice_3" class="field-input input-checkbox" value="choice_3"/><label id="107caca703dd4df8b1b3f46a6b027f17_10_1-choice_3-label" for="input_107caca703dd4df8b1b3f46a6b027f17_10_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_10_1"> All of the above </label> </div> <div class="field"> <input type="checkbox" name="input_107caca703dd4df8b1b3f46a6b027f17_10_1[]" id="input_107caca703dd4df8b1b3f46a6b027f17_10_1_choice_4" class="field-input input-checkbox" value="choice_4"/><label id="107caca703dd4df8b1b3f46a6b027f17_10_1-choice_4-label" for="input_107caca703dd4df8b1b3f46a6b027f17_10_1_choice_4" class="response-label field-label label-inline" aria-describedby="status_107caca703dd4df8b1b3f46a6b027f17_10_1"> None of the above </label> </div> <span id="answer_107caca703dd4df8b1b3f46a6b027f17_10_1"/> </fieldset> <div class="indicator-container"> <span class="status unanswered" id="status_107caca703dd4df8b1b3f46a6b027f17_10_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 3" /> <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_107caca703dd4df8b1b3f46a6b027f17" > <span class="submit-label">Submit</span> </button> <div class="submission-feedback" id="submission_feedback_107caca703dd4df8b1b3f46a6b027f17"> <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="107caca703dd4df8b1b3f46a6b027f17-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="107caca703dd4df8b1b3f46a6b027f17-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="107caca703dd4df8b1b3f46a6b027f17-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-4" data-id="block-v1:MITx+22.011x+3T2018+type@html+block@9bd8ed491ca04fb788c2744929bd4358"> <div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-request-token="83ab6a3603e511f0a0c00affe2bbc7c1" data-usage-id="block-v1:MITx+22.011x+3T2018+type@html+block@9bd8ed491ca04fb788c2744929bd4358" data-init="XBlockToXModuleShim" data-block-type="html" data-runtime-class="LmsRuntime" data-course-id="course-v1:MITx+22.011x+3T2018" data-has-score="False" data-graded="True" data-runtime-version="1"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><span style="color: #313131; font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;">Please answer the following question (this assessment is not graded):</span></p> <p>The NRC and INPO provide oversight of operations and safety at nuclear power plants in the U.S. What is the main difference in purpose and means between the NRC and INPO? (Hint: please visit NRC and INPO websites).</p> </div> </div> </div> </div>