CWEA PRACTICE TEST WITH COMPLETE SOLUTIONS

CWEA PRACTICE TEST
WITH COMPLETE
SOLUTIONS




Which welding process is most commonly used for SMALL pipe maintenance welding
B B B B B B B B B B B


? - correct answer-OxyAcetylene gas welding
B B B B B




What is the proper definition of an engine? - correct answer-
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It is a machine designed to convert energy into useful mechanical motion
B B B B B B B B B B B




What is wet stacking and how can it be prevented? - correct answer-
B B B B B B B B B B B B


It is unburned fuel collecting in the exhaust due to light or no load conditions
B B B B B B B B B B B B B B




To check flywheel face runout, where should the dial indicator be positioned? -
B B B B B B B B B B B B


correct answer-The base on the bell housing and pointer on the flywheel face
B B B B B B B B B B B B B




If a 38-
B B


tooth gear running at 360 rmp is driving another gear at 144 rmp what is the number of
B B B B B B B B B B B B B B B B B B


teeth on the driven gear? - correct answer-95
B B B B B B B




Which of the following is required for a sealed ball bearing? - correct answer-
B B B B B B B B B B B B B


It does not need to be lubricated under normal use
B B B B B B B B B




A DAFT is an acronym meaning: - correct answer-Dissolved Air Flotation Thickener
B B B B B B B B B B B




What is the governing agency that permits odor control systems? - correct answer-
B B B B B B B B B B B B


AQMD

, At what pressure rating would you use a blower instead of a fan? - correct answer-
B B B B B B B B B B B B B B B


7 psi
B




Which of the following valves is unsuitable for high-pressure flow? - correct answer-
B B B B B B B B B B B B


A needle valve
B B




A sodium hypochlorite tank's full working capacity is 23,000 gallons. Its current level is
B B B B B B B B B B B B B B


at 1,200 gallons. How many gallons does the delivery driver need to add to bring it to 7
B B B B B B B B B B B B B B B B B


0% capacity? - correct answer-14,900 gal.
B B B B B




What is the result if 6/8 " is converted to decimal form? - correct answer-.75
B B B B B B B B B B B B B B




What is the conversion of 100° Celsius into Fahrenheit? - correct answer-212°
B B B B B B B B B B B




If 17.32 v are applied across a resistance of 50 ohms, how much power is extended in
B B B B B B B B B B B B B B B B B


the resistor? - correct answer-6.0 watts
B B B B B




A standard steel plate is 4' wide, 8' long, and 1' thick. If steel weighs 490 lbs/
B B B B B B B B B B B B B B B B


ft^3, what is the total weight of this plate? - correct answer-1,306.6 lbs
B B B B B B B B B B B B




What is the volume in cubic feet of carbon media that is 6' thick in clarifier that has 50' d
B B B B B B B B B B B B B B B B B B B


iameter and is 20' deep? Round answer to the nearest cubic foot. - correct answer-
B B B B B B B B B B B B B B


11,781 ft^3 B




A 150-watt, 120-
B B


volt lamp burns constantly for 8 hours at a rated voltage. What is the energy used in w
B B B B B B B B B B B B B B B B B


atts/hours? - correct answer-1,200 watts/hours B B B B




Which of the following is 12/16 of one inch equal to? - correct answer-3/4 inch
B B B B B B B B B B B B B B




The property if an electrical circuit restricts the flow of current and: - correct answer-
B B B B B B B B B B B B B B


resistance

Which of the following can burn the insulation of the supply connections at the motor st
B B B B B B B B B B B B B B B


arter? - correct answer-The connections are loose or have poor contacts
B B B B B B B B B B




Where do you start troubleshooting when an electrical motor fails to operate after obse
B B B B B B B B B B B B B


rving a mechanical failure? - correct answer-At the power source
B B B B B B B B B




What does NEC stand for? - correct answer-National Electrical Code
B B B B B B B B B




What is a pipe union typically used for? - correct answer-It is used to connect pipes
B B B B B B B B B B B B B B B




Which of the following electrical circuits had more than one path for the current to flow
B B B B B B B B B B B B B B B


? - correct answer-Parallel circuit
B B B B




Overloading of an electrical circuit may be caused by which of the following? -
B B B B B B B B B B B B B


correct answer-Connecting loads that draw too much current
B B B B B B B B