CWEA Mechanical Technologist Latest Test
Exam (Verified & Updated)Pass A+
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 of the following can burn the insulation of the supply connections at the motor
starter? - Correct Answer The connections are loose or have poor contacts
Where do you start troubleshooting when an electrical motor fails to operate after
observing a mechanical failure? - Correct Answer At the power source
What does NEC stand for? - Correct Answer National Electrical Code
What is a pipe union typically used for? - Correct Answer It is used to connect pipes
Which of the following electrical circuits had more than one path for the current to flow?
- Correct Answer Parallel circuit
Overloading of an electrical circuit may be caused by which of the following? - Correct
Answer Connecting loads that draw too much current
What type of current is stored in 9-volt battery? - Correct Answer Direct current
What does GFI stand for? - Correct Answer Ground Fault Interrupter
What does EMT stand for? - Correct Answer Electrical Metal Tubing
What device would be used to measure AC current flow in a large diameter conductor?
- Correct Answer A clamp-on type ammeter
What is the purpose of electrical interlock switches on panel doors? - Correct Answer
To interrupt local power for personal protections
Which of the following actions should be taken before working on controls that may
disrupt plant operations? - Correct Answer Have an operator present (this is not an
action)
Exam (Verified & Updated)Pass A+
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 of the following can burn the insulation of the supply connections at the motor
starter? - Correct Answer The connections are loose or have poor contacts
Where do you start troubleshooting when an electrical motor fails to operate after
observing a mechanical failure? - Correct Answer At the power source
What does NEC stand for? - Correct Answer National Electrical Code
What is a pipe union typically used for? - Correct Answer It is used to connect pipes
Which of the following electrical circuits had more than one path for the current to flow?
- Correct Answer Parallel circuit
Overloading of an electrical circuit may be caused by which of the following? - Correct
Answer Connecting loads that draw too much current
What type of current is stored in 9-volt battery? - Correct Answer Direct current
What does GFI stand for? - Correct Answer Ground Fault Interrupter
What does EMT stand for? - Correct Answer Electrical Metal Tubing
What device would be used to measure AC current flow in a large diameter conductor?
- Correct Answer A clamp-on type ammeter
What is the purpose of electrical interlock switches on panel doors? - Correct Answer
To interrupt local power for personal protections
Which of the following actions should be taken before working on controls that may
disrupt plant operations? - Correct Answer Have an operator present (this is not an
action)
