1.  What are the most important methods of ensuring operator safety?

A. Appointing a safety officer and administrator B. Alerting operators of unsafe acts and conducting mandatory safety training C. Providing handbooks and copies of regulations D. Working with proper light and ventilation

2.  What safety procedure should an operator always follow when mixing a solution of sodium hypochlorite (liquid bleach) and fresh water?

A. Attend a training course on liquid chlorine from an accredited school B. Wear gloves and a mask when opening the containers of bleach C. Ask a second individual to stand nearby with an emergency breathing apparatus D. Wear goggles and gloves when handling hypochlorite

3.  Which form of hypochlorite is the most dangerous to handle?

A. Sodium B. Fluoride C. Calcium D. Chlorine

4.  What are the two most important safety concerns when entering a confined space?

A. Corrosive chemicals and falls B. Bad odors and claustrophobia C. Extreme air temperatures and slippery surfaces] D. Oxygen deficiency and hazardous gases

5.  What piece of safety equipment must an operator wear when entering a confined space?

A. Boots B. Harness C. Gloves D. Goggles

6.  What type of fire extinguisher should be used for fires with live electricity present?

A. Class A B. Class B C. Class C D. Class D

7.  Which document provides a profile of hazardous substances?

A. CERCLA B. SARA C. CFR D. MSDS

8.  What safety measure must an operator follow prior to working on electrical equipment?

A. Lock out and tag out all electrical switches B. Put on canvas gloves C. Remove fuses from switch box D. Tell one coworker not to turn on the switch

9.  What is the correct procedure for mixing acid and water?

A. Water is added slowly to the acid B. Acid is added slowly to the water C. Water is added quickly to the acid D. Acid is added quickly to the water

10.  What is the purpose of a pump guard?

A. Allows operators to turn off pump in emergency situations B. Notifies operators of excessive temperatures C. Allows operators to pump against a closed discharge valve D. Protects operators from rotating parts

11.  The most important responsibility of an operator is to provide:

A. Adequate water pressure B. Palatable drinking water C. Adequate amounts of water D. Safe drinking water

12.  To ensure that the water supplied by a public water system meets federal and state requirements, the water system operator must regularly collect samples and:

A. Test the water at the nearest water testing laboratory B. Determine a sampling schedule based on the labs recommendations C. Send all analysis results to the State periodically D. Count the number of active wells in the system

13.  The major source of error when obtaining water quality information is improper:

A. Sampling B. Preservation C. Tests of samples D. Reporting of data

14.  A composite sample should never be used when sampling for which contaminant?

A. Benzene B. Nitrate C. Barium D. Bacteria

15.  When should water quality samples for chlorine residual be analyzed?

A. Immediately B. Within 1 hour C. Within 8 hours D. Within 24 hours

16.  How many coliform samples are required per month for a water system serving a population between 25 and 100?

A. 1 B. 2 C. 3 D. 4

17.  Water laboratory test calculations and results use which system?

A. English B. Metric C. SWAG D. British

18.  Factors of what number are used in the metric system?

A. 5 B. 10 C. 12 D. 64

19.  What is the chemical formula for sulfuric acid?

A. SA2 B. H2SO4 C. NaOH D. H2O

20.  Which of the following should not be used to draw a sample into a pipet?

A. Mouth B. Bulb C. Pump D. Straw

21.  Which of the following are two types of samples?

A. Dessicator and gooch B. Wet and dry C. Buret and flask D. Grab and composite

22.  What two types of devices are used to collect samples?

A. Left and right B. Upper and lower C. Automatic and manual D. Gas and diesel

23.  How should samples that cannot be analyzed immediately be maintained until the analysis is conducted?

A. Shaken every hour B. Preserved C. Held in an open container D. Stored bottom up

24.  What is the most common method used in labs to test for total coliform and E. coli?

A. DMA B. Green C. Colilert D. Lamp

25.  What test method best determines chemical feed/dosage rates?

A. Jar B. Turbidity C. Hammer D. Hardness

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