{"id":605,"date":"2024-06-19T09:02:53","date_gmt":"2024-06-19T06:02:53","guid":{"rendered":"https:\/\/sisu.ut.ee\/measurement\/self-test-5-4\/"},"modified":"2024-06-19T09:02:53","modified_gmt":"2024-06-19T06:02:53","slug":"self-test-5-4","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/measurement\/self-test-5-4\/","title":{"rendered":"Self-test 5.4"},"content":{"rendered":"<div id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam21\" 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-21\"><p>Here you can test your understanding of the concepts of random and systematic effects.<\/p>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-21\" enctype=\"multipart\/form-data\">\n<div class=\"watu-question \" id=\"question-1\" style=\";\"><div id=\"questionWrap-1\" class=\"   watupro-question-id-75\">\n\t\t\t<div class=\"question-content\"><div><span class=\"watupro_num\">1. <\/span>Partial volatilization of the analyte can be an important source of uncertainty. Is this a random or a systematic effect?<\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_1\" value=\"75\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType75\" class=\"answerTypeCnt1\" value=\"radio\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices75\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-75[]\" id=\"answer-id-264\" class=\"answer   answerof-75 \" value=\"264\"><label for=\"answer-id-264\" id=\"answer-label-264\" class=\" answer\"><span><p>Random\u00a0<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"radio\" name=\"answer-75[]\" id=\"answer-id-265\" class=\"answer   answerof-75 \" value=\"265\"><label for=\"answer-id-265\" id=\"answer-label-265\" class=\" answer\"><span><p>Systematic\u00a0<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-2\" style=\";\"><div id=\"questionWrap-2\" class=\"   watupro-question-id-76\">\n\t\t\t<div class=\"question-content\"><p><span class=\"watupro_num\">2. <\/span>Which of the following are random effects and which are systematic effects?<\/p>\n<ol>\n<li>Titration repeatability - <select name=\"gap_76_1\" class=\"watupro-gap answer answerof-76\"><option value=\"\"><\/option><option value=\"random\">random<\/option><option value=\"systematic\">systematic<\/option><\/select><\/li>\n<li>Analyte loss during the sample preparation - <select name=\"gap_76_2\" class=\"watupro-gap answer answerof-76\"><option value=\"\"><\/option><option value=\"systematic\">systematic<\/option><option value=\"random\">random<\/option><\/select><\/li>\n<li>Titrant decomposition during the analysis -\u00a0<select name=\"gap_76_3\" class=\"watupro-gap answer answerof-76\"><option value=\"\"><\/option><option value=\"random\">random<\/option><option value=\"systematic\">systematic<\/option><\/select><\/li>\n<li>Matrix effect in liquid chromatography mass spectrometry leading to partial suppression of ionization of the analyte - <select name=\"gap_76_4\" class=\"watupro-gap answer answerof-76\"><option value=\"\"><\/option><option value=\"systematic\">systematic<\/option><option value=\"random\">random<\/option><\/select><\/li>\n<li>Less than 100% purity of the standard substance used for constructing calibration graph.\u00a0\u00a0- <select name=\"gap_76_5\" class=\"watupro-gap answer answerof-76\"><option value=\"\"><\/option><option value=\"random\">random<\/option><option value=\"systematic\">systematic<\/option><\/select><\/li>\n<li>Instrument reading repeatability\u00a0\u00a0- <select name=\"gap_76_6\" class=\"watupro-gap answer answerof-76\"><option value=\"\"><\/option><option value=\"random\">random<\/option><option value=\"systematic\">systematic<\/option><\/select><\/li>\n<li>Contamination of sample with the analyte - <select name=\"gap_76_7\" class=\"watupro-gap answer answerof-76\"><option value=\"\"><\/option><option value=\"systematic\">systematic<\/option><option value=\"random\">random<\/option><\/select><\/li>\n<li>Increased absorbance readings in spectrophotometric analysis caused by interfering substance - <select name=\"gap_76_8\" class=\"watupro-gap answer answerof-76\"><option value=\"\"><\/option><option value=\"systematic\">systematic<\/option><option value=\"random\">random<\/option><\/select><\/li>\n<\/ol>\n<input type=\"hidden\" name=\"question_id[]\" id=\"qID_2\" value=\"76\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType76\" class=\"answerTypeCnt2\" value=\"gaps\"><!-- end question-content--><\/div><!-- end questionWrap--><\/div><\/div><div style=\"display:none\" id=\"question-3\">\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=\"watuPROButtons21\">\n\t\t  <div id=\"prev-question\" style=\"display:none;\"><input type=\"button\" value=\"&lt; 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