{"id":582,"date":"2024-06-19T08:18:27","date_gmt":"2024-06-19T05:18:27","guid":{"rendered":"https:\/\/sisu.ut.ee\/measurement\/self-test-2\/"},"modified":"2024-06-19T08:18:27","modified_gmt":"2024-06-19T05:18:27","slug":"self-test-2","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/measurement\/self-test-2\/","title":{"rendered":"Self-test 2"},"content":{"rendered":"<div id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam31\" style=\"display:none;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sisu.ut.ee\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-31\"><p>It has been explained in this section that there are effects contributing to measurement uncertainty \u2013 uncertainty sources \u2013 and that these effects can be either random or systematic by their nature. The following test enables you to test whether you understand what an uncertainty source is and what are the main properties of random and systematic effects.<\/p>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-31\" enctype=\"multipart\/form-data\">\n<div class=\"watu-question \" id=\"question-1\" style=\";\"><div id=\"questionWrap-1\" class=\"   watupro-question-id-112\">\n\t\t\t<div class=\"question-content\"><div>Which of the following statements about measurement uncertainty, random effects and systematic effects are correct?<\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_1\" value=\"112\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType112\" class=\"answerTypeCnt1\" value=\"checkbox\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices112\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-112[]\" id=\"answer-id-369\" class=\"answer   answerof-112 \" value=\"369\"><label for=\"answer-id-369\" id=\"answer-label-369\" class=\" answer\"><span><p>Systematic effects can in principle be corrected and thereby minimized or even eliminated.<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-112[]\" id=\"answer-id-370\" class=\"answer   answerof-112 \" value=\"370\"><label for=\"answer-id-370\" id=\"answer-label-370\" class=\" answer\"><span><p>Systematic effects can be minimized (or even eliminated) by performing the measurement in large number of repetitions.<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-112[]\" id=\"answer-id-366\" class=\"answer   answerof-112 \" value=\"366\"><label for=\"answer-id-366\" id=\"answer-label-366\" class=\" answer\"><span><p>Random effects can never be entirely eliminated but their influence on the result can be decreased by making multiple repeated measurements.<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-112[]\" id=\"answer-id-368\" class=\"answer   answerof-112 \" value=\"368\"><label for=\"answer-id-368\" id=\"answer-label-368\" class=\" answer\"><span><p>Uncertainty sources are the cause of deviation of the measured value from the true value.<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-112[]\" id=\"answer-id-367\" class=\"answer   answerof-112 \" value=\"367\"><label for=\"answer-id-367\" id=\"answer-label-367\" class=\" answer\"><span><p>It is often possible in practice to eliminate all uncertainty sources so that measurement results will have no uncertainty.<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-112[]\" id=\"answer-id-371\" class=\"answer   answerof-112 \" value=\"371\"><label for=\"answer-id-371\" id=\"answer-label-371\" class=\" answer\"><span><p>Correctly estimated measurement uncertainty takes into account both random and systematic effects.<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div style=\"display:none\" id=\"question-2\">\n\t<div class=\"question-content\">\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sisu.ut.ee\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading...\" title=\"Loading...\">\u00a0Loading...\t<\/div>\n<\/div>\n\n<br>\n\t\n\t\t\t<div class=\"watupro_buttons flex \" id=\"watuPROButtons31\">\n\t\t  <div id=\"prev-question\" style=\"display:none;\"><input type=\"button\" value=\"&lt; 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