Water Distribution Practice Exam Grade 3 & 4 Tempe, AZ Questions With Correct Answers

What is the definition of "operator"? - Answer Operator has the same meaning as certified operator. Within how many days must a certified operator notify the Department (in writing) that the operator either ceases or commences operation of another facility? - Answer 10 days At which type of facility is a remote operator allowed to operate? - Answer Any Grade 1 or Grade 2 facility How close must the remote operator of a facility be to the facility to legally operate the facility? - Answer Within 200 miles by ground travel. What is the inspection frequency that a remote operator must inspect a grade 1 or grade 2 water treatment plant or distribution system that produces groundwater? - Answer As often as necessary, but no less than monthly. Upon expiration of an operator certificate, how many days does an operator have to reinstate the certificate without retaking an examination? - Answer 90 days What is an initial monitoring year? - Answer The calendar year designated by the Department within a compliance period in which a public water system conducts initial monitoring at a point of entry. What is the reporting limit for all regulated VOC's? - Answer 0.0005 mg/L Who is allowed to conduct a sanitary survey? - Answer A representative of the Department or a professional engineer or sanitarian who is registered in Arizona and approved by the Department. Under what circumstances may the Department reduce monitoring frequency for nitrate at a surface water sampling point and what is the reduced frequency? - Answer If the analytical results are < 5 mg/L for 4 consecutive quarters then reduce sampling frequency from quarterly to annually. Which type of system is not required to sample for VOC's? - Answer Transient Non-community Water System. What contaminants does the monitoring assistance program monitor? - Answer IOCs, VOCs, and SOCs. What types of public water system must comply with Article 6, Capacity Development Requirements for a New Public Water System? - Answer Community water systems and non-transient non-community water systems that begin operations on or after October 1, 1999 To become a new public water system, an owner shall file an elementary business plan for review and approval by the Department. What three elements make up the elementary business plan? - Answer Technical Capacity, Managerial Capacity, and Financial Capacity. What is the definition of an "on-site representative"? - Answer On-site representative means a person located at a facility who monitors the daily operation at the facility and maintains contact with the remote operator regarding the facility. According to Arizona State Rule, an "Air-gap separation" means a physical separation between the discharge end of a supply pipe and the top rim of its receiving vessel, which has a separation distance equal to at least? - Answer 1 inch or twice the diameter of the supply pipe, whichever is greater. According to Arizona State Rule, this term means 1 of the family of organic compounds, named as derivatives of methane, wherein 3 of 4 hydrogen atoms in methane are substituted by a halogen atom in the molecular structure? - Answer Trihalomethanes According to Arizona State Rule, what term best represents a mechanical device used to prevent back-flow? - Answer Back-flow-prevention assembly This type of valve has a movable disk the same size as the full diameter of the pipe. The disc rotates on a spindle or shaft in only one direction to either block or allow the flow of water. - Answer Butterfly The four most common categories of valves encountered in the water distribution system are the? - Answer Slide, rotary, globe, and diaphragm valves. This type of valve has a flexible piece inside the valve's body and can be adjusted up or down using an attached stem. When the piece is depressed, the flow of water can be stopped or regulated. - Answer Diaphragm