CWEA ECI Grade 1 Practice Questions: Practice questions for the CWEA Environmental Compliance Inspector Grade 1 exam

By: The Examelot Team

CWEI ECI Grade 1 Practice Exam: Prepare for Success! Looking for an effective way to prepare for the CWEI Environmental Compliance Inspector (ECI) Grade 1 exam? This unofficial book contains 150 multiple-choice questions on all the major topics of the CWEI ECI Grade 1 exam, including sampling, field tests, laboratory tests, and inspection of facilities. Each question closely mirrors those encountered in the actual exam, providing you with a confident practice experience and familiarity with the exam format. Answers to difficult questions are accompanied by explanations, allowing you to understand the reasoning behind the answer. Sample questions To give you an idea of the questions, below are five questions from the book. 1) What is meant by chain of custody? a. A record of criminal action against an industrial discharger b. A record of each agency action leading to a notice of violation c. A record of every person who has access to a sample d. A record of every sample submitted to the laboratory Answer: c) A record of every person who has access to a sample 2) Industrial wastewater discharge permits grant permission to discharge wastewater into: a. a pretreatment facility b. the centralized waste treatment facility c. the environment d. the wastewater collection system Answer: d) the wastewater collection system 3) Which of these is a conventional pollutant? a. Benzene b. Biochemical oxygen demand c. Cyanide d. Hexavalent chromium Answer: b) Biochemical oxygen demand Conventional pollutants are usually found in domestic, commercial, or industrial wastes, and include suspended solids, biochemical oxygen demand, pathogens, and oil and grease. Examples of unconventional pollutants are benzene, beryllium, PCBs, asbestos and vinyl chloride. 4) Which device is typically used to separate grit from organics in grit slurries? a. Aerated grit chamber b. Air lift c. Clarifier d. Hydrocyclone Answer: d) Hydrocyclone Hydrocyclones are typically used to separate grit from organics in grit slurries and to remove grit from primary sludge. These devices spin the grit out of the slurry using centrifugal force. 5) Which dye is used to detect the presence of anionic surfactants in water samples? a. Methylene blue b. Nile red c. Oil red d. Thymolphthalein Answer: a) Methylene blue Anionic surfactants in a water sample can be detected with a methylene blue active substances (MBAS) assay. This is a colorimetric analysis test method that uses methylene blue.

• Format: Paperback
• Language: English
• ISBN: B0BF3GQ4SN
• ISBN13: 9798352805282
• Release Date: September 2022
• Publisher: Independently published
• Length: 69 Pages
• Dimensions: 10.0" x 0.2" x 8.0"