{"id":2507,"date":"2017-07-10T17:50:49","date_gmt":"2017-07-11T00:50:49","guid":{"rendered":"http:\/\/www.waterandwastewatercourses.com\/?p=2507"},"modified":"2019-07-17T17:40:42","modified_gmt":"2019-07-18T00:40:42","slug":"water-distribution-operator-certification-exam-practice-problems-practice-exams-practice-tests-study-guide","status":"publish","type":"post","link":"https:\/\/www.waterandwastewatercourses.com\/water-distribution-operator-certification-exam-practice-problems-practice-exams-practice-tests-study-guide\/","title":{"rendered":"Test Questions for Water Distribution Operator Certification Exam"},"content":{"rendered":"<h2><strong><span style=\"font-family: helvetica, arial, sans-serif;\">4 Practice Problems for the Water Distribution Operator Certification Exam<\/span><\/strong><\/h2>\n<p class=\"p1\"><span class=\"s1\" style=\"font-size: 14pt; font-family: helvetica, arial, sans-serif;\">If you\u2019re getting ready to take the Water Distribution Operator Certification Exam, check out the following video that covers 4 test questions.<span class=\"Apple-converted-space\">\u00a0 <\/span>It\u2019s a fairly short video, but it contains helpful information that can be used as a study guide.<span class=\"Apple-converted-space\">\u00a0 <\/span>The practice problems covered in this video are the type of questions you will see on the Water Distribution Operator Certification Exam.<span class=\"Apple-converted-space\">\u00a0 <\/span>If you want more test questions after watching this video, check out <a href=\"https:\/\/amzn.to\/2Uh9tnP\">this book that contains 300 test questions for the Water Distribution Operator Certification Exam. <\/a><span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0<\/span><\/span><\/p>\n<div class=\"ast-oembed-container\"><iframe title=\"WATER DISTRIBUTION OPERATOR CERTIFICATION EXAM - 4 PRACTICE PROBLEMS\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Jawdm2PoZdc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Want to pass you exam?\u00a0 Enroll in this helpful online course:\u00a0\u00a0<\/span><a href=\"https:\/\/water-and-wastewater-courses.teachable.com\/\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Water Distribution Operator Certification Classes<\/span><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Here\u2019s a summary of what&#8217;s covered in the video.<span class=\"Apple-converted-space\">\u00a0 <\/span>The answers to the questions are at the bottom of this page.<span class=\"Apple-converted-space\">\u00a0 \u00a0<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h3 class=\"p1\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><strong><span class=\"s1\">TEST QUESTIONS<\/span><\/strong><\/span><\/h3>\n<ol class=\"ol1\">\n<li class=\"li1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"> At what depths is shoring required in a trench if it\u2019s excavated in soil?<\/span><\/li>\n<\/ol>\n<ol style=\"list-style-type: lower-alpha;\">\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">\u00a0 3 feet or deeper<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">\u00a0 4 feet or deeper<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">\u00a0 5 feet or deeper<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">\u00a0 6 feet or deeper <\/span><\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">2.<span class=\"Apple-converted-space\">\u00a0 <\/span>Which of the following is a positive displacement meter?<\/span><\/p>\n<ol style=\"list-style-type: lower-alpha;\">\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">\u00a0 Venturi meter\u00a0<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>Turbine meter<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>Nutating disc meter<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>Propeller meter<\/span><\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">3.<span class=\"Apple-converted-space\">\u00a0 <\/span>What does the C factor for a pipe represent?<\/span><\/p>\n<ol style=\"list-style-type: lower-alpha;\">\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">\u00a0 Strength of the pipe\u00a0<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>Flexibility of the pipe<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>Thickness of the pipe<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>Roughness of the pipe interior<\/span><\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">4.<span class=\"Apple-converted-space\">\u00a0 <\/span>What is used to locate a chlorine gas leak?<\/span><\/p>\n<ol style=\"list-style-type: lower-alpha;\">\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>Hydrogen peroxide<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>Ammonia solution<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>Sulfur<\/span><\/li>\n<li class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><span class=\"Apple-converted-space\">\u00a0\u00a0<\/span>Distilled water<\/span><\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<h3 class=\"p1\"><span style=\"font-family: helvetica, arial, sans-serif;\"><strong><span class=\"s1\"><span style=\"font-size: 14pt;\">ANSWERS<\/span>:<\/span><\/strong><\/span><\/h3>\n<ol class=\"ol1\">\n<li class=\"li1\">\n<h2><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><strong> C.<\/strong> (5 feet or deeper)<\/span><\/h2>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Shoring is a safety equipment that is installed in a trench to protect employees from a cave-in.<span class=\"Apple-converted-space\">\u00a0 <\/span>It is required in a trench if it\u2019s 5 feet or deeper, and excavated in soil.\u00a0<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">In addition to shoring, you are allowed to use other alternatives to meet this requirement.<span class=\"Apple-converted-space\">\u00a0 <\/span>For example, you can bench or slope the soil along the sides of the trench, or install a trench shield.<span class=\"Apple-converted-space\">\u00a0 <\/span>On the Water Distribution Operator Certification Exam, you&#8217;ll most likely be tested on shoring than the other alternatives.\u00a0<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">One thing to remember is that the 5-foot rule that I explained earlier only applies if the trench is excavated in soil.<span class=\"Apple-converted-space\">\u00a0 <\/span>If it\u2019s excavated in stable rock, then shoring or any of the alternatives is not required.\u00a0<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">On the Water Distribution Operator Certification Exam, the test question on shoring may not clarify if trenching is in soil or stable rock.<span class=\"Apple-converted-space\">\u00a0 <\/span>If you encounter this on the exam, you should assume that trenching is in soil because they\u2019re testing you on the 5-foot rule.\u00a0<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Furthermore, the same applies with practice problems in study guides.<span class=\"Apple-converted-space\">\u00a0 <\/span>Most of the time, the practice questions will not clarify if trenching is in soil or stable rock.<span class=\"Apple-converted-space\">\u00a0 Consequently<\/span>, you should assume that trenching is in soil because they\u2019re testing you on the 5-foot rule. <span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0 \u00a0<\/span><\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">To learn more about trench safety, go to the textbook, Water Distribution System Operation and Maintenance, and on pages 91 to 97, it covers it in more detail.<span class=\"Apple-converted-space\">\u00a0 \u00a0<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">2.<span class=\"Apple-converted-space\">\u00a0 <\/span><strong>C.<\/strong> (Nutating disc meter)<\/span><\/h2>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">First of all, a nutating disc meter is a type of positive displacement meter that is commonly used for residential services to monitor water usage.<span class=\"Apple-converted-space\">\u00a0 <\/span>So how does a nutating disc meter work?<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">When water fills the meter chamber, it causes the disc to nutate, which means to wobble.<span class=\"Apple-converted-space\">\u00a0 <\/span>Every nutation corresponds to a fixed volume of water.<span class=\"Apple-converted-space\">\u00a0 <\/span>So the total volume of water that passes through the meter can be determined by knowing the total number of nutations.\u00a0<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Now, let\u2019s look at the nutating disc meter is more detail. <span class=\"Apple-converted-space\">\u00a0 \u00a0<\/span><\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Every time water enters the chamber, it causes the disc to nutate.<span class=\"Apple-converted-space\">\u00a0 As a result, t<\/span>his causes the spindle at the top of the sphere, which is connected to the disc, to also nutate.<span class=\"Apple-converted-space\">\u00a0 <\/span>By correlating this movement to the volume of water, the meter is able to register the total volume of water that passes through it. <span class=\"Apple-converted-space\">\u00a0 \u00a0<\/span><\/span><\/p>\n<p class=\"p1\"><span class=\"s1\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">To learn more about water meters, go to the textbook, Water Distribution System Operation and Maintenance, on pages 119 to 126, it covers it in more detail.<\/span><span class=\"Apple-converted-space\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">\u00a0 \u00a0 <\/span>\u00a0<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">3.<span class=\"Apple-converted-space\">\u00a0 <\/span><strong>D.<\/strong> (Roughness of the pipe interior)<\/span><\/h2>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">The C factor for a pipe represents the roughness of the pipe interior.<span class=\"Apple-converted-space\">\u00a0 <\/span>For example, a new PVC pipe has a very smooth interior surface, which corresponds to a high C factor, such as 140 or even higher.<span class=\"Apple-converted-space\">\u00a0 <\/span>In contrast, an older metallic pipe with tuberculation, which are small mounds of corrosion products, corresponds to a very low C factor, such as 100 or less.\u00a0<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">In summary, the higher the C factor, the smoother the pipe.<span class=\"Apple-converted-space\">\u00a0 <\/span>And the C factor tells you how rough or smooth the pipe interior is.\u00a0<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">To learn more about C factors, go to the textbook, Water Distribution system Operation and Maintenance, on page 68, it covers it in more detail.<span class=\"Apple-converted-space\">\u00a0 \u00a0<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">4.<span class=\"Apple-converted-space\">\u00a0 <\/span><strong>B.<\/strong> (Ammonia solution)<\/span><\/h2>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">If you tie a rag on a stick, and dip the rag in ammonia solution and place it near a suspected leak, or spray ammonia solution vapor using a squeeze bottle near the suspected leak, the chlorine gas in the atmosphere will react with the ammonia solution vapor and create a white cloud.<span class=\"Apple-converted-space\">\u00a0 By <\/span>tracing the white cloud, you&#8217;ll be able to locate the chlorine gas leak. <span class=\"Apple-converted-space\">\u00a0 \u00a0 \u00a0<\/span><\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Additionally, another fact about chlorine gas that you should know is that if a chlorine gas cylinder is leaking, rotate it so that the leak is facing upwards.<span class=\"Apple-converted-space\">\u00a0 <\/span>This will minimize the rate of the leak.<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Also, remember that chlorine gas is 2.5 times heavier than air.<span class=\"Apple-converted-space\">\u00a0 <\/span>This is one of the facts of chlorine gas that you should memorize before your Water Distribution Operator Certification Exam.<span class=\"Apple-converted-space\">\u00a0 <\/span>It\u2019s a fairly common test question.\u00a0<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">To learn more about disinfectants, including chlorine gas, go to the textbook, Water Distribution System Operation and Maintenance, and on pages 282 to 331, it covers it in more detail.<span class=\"Apple-converted-space\">\u00a0 \u00a0<\/span><\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><strong><span class=\"s1\">CONCLUSION<\/span><\/strong><\/span><\/h3>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">In conclusion, if you want more test questions to prepare for the Water Distribution Operator Certification Exam, then check out <a href=\"https:\/\/amzn.to\/2Uh9tnP\">this book<\/a><a href=\"https:\/\/amzn.to\/2OX2Zr5\">,<\/a> which contains 300 practice problems.<span class=\"Apple-converted-space\">\u00a0 <\/span>It includes questions on both concepts and water math. \u00a0<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Moreover, if you need help studying for the exam, enroll in the following online course:\u00a0<span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><a href=\"https:\/\/water-and-wastewater-courses.teachable.com\/\">Water Distribution Operator Certification Classes<\/a>\u00a0.<\/span>\u00a0 \u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><strong><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">NEED ADDITIONAL HELP?<\/span><\/strong><\/h2>\n<p><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Lastly, if you need additional help, here are some more <a href=\"https:\/\/www.waterandwastewatercourses.com\/practice-problems\/\">practice problems<\/a> for you to study.<\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>4 Practice Problems for the Water Distribution Operator Certification Exam If you\u2019re getting ready to take the Water Distribution Operator Certification Exam, check out the following video that covers 4 test questions.\u00a0 It\u2019s a fairly short video, but it contains helpful information that can be used as a study guide.\u00a0 The practice problems covered in &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"ast-button\" href=\"https:\/\/www.waterandwastewatercourses.com\/water-distribution-operator-certification-exam-practice-problems-practice-exams-practice-tests-study-guide\/\"> <span class=\"screen-reader-text\">Test Questions for Water Distribution Operator Certification Exam<\/span> Read More \u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":2508,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[109],"tags":[],"class_list":["post-2507","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-water-distribution-operator-certification-exam"],"jetpack_featured_media_url":"https:\/\/www.waterandwastewatercourses.com\/wp-content\/uploads\/2017\/07\/water-distribution-operator-certification-exam-practice-problems-study-guide-exam-dates-course-class.jpg","_links":{"self":[{"href":"https:\/\/www.waterandwastewatercourses.com\/wp-json\/wp\/v2\/posts\/2507","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.waterandwastewatercourses.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.waterandwastewatercourses.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.waterandwastewatercourses.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.waterandwastewatercourses.com\/wp-json\/wp\/v2\/comments?post=2507"}],"version-history":[{"count":13,"href":"https:\/\/www.waterandwastewatercourses.com\/wp-json\/wp\/v2\/posts\/2507\/revisions"}],"predecessor-version":[{"id":3109,"href":"https:\/\/www.waterandwastewatercourses.com\/wp-json\/wp\/v2\/posts\/2507\/revisions\/3109"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.waterandwastewatercourses.com\/wp-json\/wp\/v2\/media\/2508"}],"wp:attachment":[{"href":"https:\/\/www.waterandwastewatercourses.com\/wp-json\/wp\/v2\/media?parent=2507"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.waterandwastewatercourses.com\/wp-json\/wp\/v2\/categories?post=2507"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.waterandwastewatercourses.com\/wp-json\/wp\/v2\/tags?post=2507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}