Download or read book Illinois Drinking Water Operator (Class D - DISTRIBUTION) Unofficial Self Practice Exercise Questions written by ExamREVIEW and published by Createspace Independent Publishing Platform. This book was released on 2018-08-17 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drinking water systems in Illinois are operated and maintained by certified Drinking Water Operators who are technically competent. The Class D exam has topics that focus on the water distribution system. We create these self-practice water distribution test questions referencing the principles and concepts currently valid in the exam. Each question comes with an answer and a short explanation which aids you in seeking further study information. For purpose of exam readiness drilling, this product includes questions that have varying numbers of choices. Some have 2 while some have 5 or 6. We want to make sure these questions are tough enough to really test your readiness and draw your focus to the weak areas. You should use this product together with other study resources for the best possible exam prep coverage.