CWEA Practice Test Questions with correct answers
Which welding process is most commonly used for SMALL pipe maintenance
welding? Correct Answer - OxyAcetylene gas welding
What is the proper definition of an engine? Correct Answer - It is a machine
designed to convert energy into useful mechanical motion
What is wet stacking and how can it be prevented? Correct Answer - It is unburned
fuel collecting in the exhaust due to light or no load conditions
To check flywheel face runout, where should the dial indicator be positioned?
Correct Answer - The base on the bell housing and pointer on the flywheel face
If a 38-tooth gear running at 360 rmp is driving another gear at 144 rmp what is the
number of teeth on the driven gear? Correct Answer - 95
Which of the following is required for a sealed ball bearing? Correct Answer - It
does not need to be lubricated under normal use
A DAFT is an acronym meaning: Correct Answer - Dissolved Air Flotation
Thickener
What is the governing agency that permits odor control systems? Correct Answer -
AQMD
At what pressure rating would you use a blower instead of a fan? Correct Answer -
7 psi
, Which of the following valves is unsuitable for high-pressure flow? Correct
Answer - A needle valve
A sodium hypochlorite tank's full working capacity is 23,000 gallons. Its current
level is at 1,200 gallons. How many gallons does the delivery driver need to add to
bring it to 70% capacity? Correct Answer - 14,900 gal.
What is the result if 6/8 " is converted to decimal form? Correct Answer - .75
What is the conversion of 100° Celsius into Fahrenheit? Correct Answer - 212°
If 17.32 v are applied across a resistance of 50 ohms, how much power is extended
in the resistor? Correct Answer - 6.0 watts
A standard steel plate is 4' wide, 8' long, and 1' thick. If steel weighs 490 lbs/ft^3,
what is the total weight of this plate? Correct Answer - 1,306.6 lbs
What is the volume in cubic feet of carbon media that is 6' thick in clarifier that has
50' diameter and is 20' deep? Round answer to the nearest cubic foot. Correct
Answer - 11,781 ft^3
A 150-watt, 120-volt lamp burns constantly for 8 hours at a rated voltage. What is
the energy used in watts/hours? Correct Answer - 1,200 watts/hours
Which of the following is 12/16 of one inch equal to? Correct Answer - 3/4 inch
The property if an electrical circuit restricts the flow of current and: Correct
Answer - resistance
Which welding process is most commonly used for SMALL pipe maintenance
welding? Correct Answer - OxyAcetylene gas welding
What is the proper definition of an engine? Correct Answer - It is a machine
designed to convert energy into useful mechanical motion
What is wet stacking and how can it be prevented? Correct Answer - It is unburned
fuel collecting in the exhaust due to light or no load conditions
To check flywheel face runout, where should the dial indicator be positioned?
Correct Answer - The base on the bell housing and pointer on the flywheel face
If a 38-tooth gear running at 360 rmp is driving another gear at 144 rmp what is the
number of teeth on the driven gear? Correct Answer - 95
Which of the following is required for a sealed ball bearing? Correct Answer - It
does not need to be lubricated under normal use
A DAFT is an acronym meaning: Correct Answer - Dissolved Air Flotation
Thickener
What is the governing agency that permits odor control systems? Correct Answer -
AQMD
At what pressure rating would you use a blower instead of a fan? Correct Answer -
7 psi
, Which of the following valves is unsuitable for high-pressure flow? Correct
Answer - A needle valve
A sodium hypochlorite tank's full working capacity is 23,000 gallons. Its current
level is at 1,200 gallons. How many gallons does the delivery driver need to add to
bring it to 70% capacity? Correct Answer - 14,900 gal.
What is the result if 6/8 " is converted to decimal form? Correct Answer - .75
What is the conversion of 100° Celsius into Fahrenheit? Correct Answer - 212°
If 17.32 v are applied across a resistance of 50 ohms, how much power is extended
in the resistor? Correct Answer - 6.0 watts
A standard steel plate is 4' wide, 8' long, and 1' thick. If steel weighs 490 lbs/ft^3,
what is the total weight of this plate? Correct Answer - 1,306.6 lbs
What is the volume in cubic feet of carbon media that is 6' thick in clarifier that has
50' diameter and is 20' deep? Round answer to the nearest cubic foot. Correct
Answer - 11,781 ft^3
A 150-watt, 120-volt lamp burns constantly for 8 hours at a rated voltage. What is
the energy used in watts/hours? Correct Answer - 1,200 watts/hours
Which of the following is 12/16 of one inch equal to? Correct Answer - 3/4 inch
The property if an electrical circuit restricts the flow of current and: Correct
Answer - resistance
