Have an account?
Skip to Content
Build your own quiz
Suggestions for you
19 questions
Show Answers
See Preview
- 1. Multiple Choice
The Centrifugal air compressor ___.
Has valves that open and close at the proper time
Uses a series of rotors equipped with blades
Is only made in a single stage design
Uses an impeller to impart radial momentum to the air
- 2. Multiple Choice
The ___ of an air compressor is the volume of free air per minute that the compressor will supply at a given pressure.
Drive power
Maximum pressure
Capacity
Flow factor
- 3. Multiple Choice
The reciprocating piston air compressor ___.
Has valves that open and close at the proper time
Is similar to a turbine found in a jet aircraft
Is seldom used because of limited applications
Is only used in large manufacturing plants
- 4. Multiple Choice
The air compressor ___ switch is used to start and stop the air compressor’s motor.
Pressure
Vacuum
Reed
Proximity
- 5. Multiple Choice
Most air compressed air safety relief valves are ___.
Adjustable by the machine operator
Sealed with a lead seal
Permanently sealed shut
Left open
- 6. Multiple Choice
A positive displacement air compressor ___.
Recompresses the same volume of air twice
Produces a new volume of air for every stroke
Compresses the air by increasing the velocity of the air
Is best suited for high flow rate applications
- 7. Multiple Choice
The ___ pressure is the setting at which the air compressor is turned off.
Cut-in
Cut-out
Max pressure
Safety pressure
- 8. Multiple Choice
In a reciprocating piston air compressor ___.
Both valves are never closed
Both valves are never open
The intake valve is open as the piston moves down
The intake valve is open as the piston moves up
- 9. Multiple Choice
One instrument that is not used to measure compressor flow rate is a ___.
Flat plate orifice
Flow nozzle
Venturi
Pitot tube
- 10. Multiple Choice
The ideal gas law requires that temperature be stated ___.
In absolute units
In Celsius or Fahrenheit
In relative units
Degrees above freezing
- 11. Multiple Choice
Compressor duty cycle is ___.
How long a compressor must rest after a certain operating time
How long a compressor can operate between overhauls
The time needed to fill the tank from 0 to capacity
The maintenance time needed for each 1000 hours of running time
- 12. Multiple Choice
A two stage compressor ___.
Doubles the flow
Compresses the same volume of air twice
Has two pistons in each cylinder
Has two pistons that move up and down at the same time.
- 13. Multiple Choice
In an air compressor system, the tank drain ___.
Is used to remove water from the tank
Can serve as a pressure relief valve
Should only be opened for annual cleaning of the tank
Should be hard wired shut
- 14. Multiple Choice
If air pressure is used to clean an area, the pressure should be ___.
Full pressure
30 psi or less
100 psi minimum
200 psi maximum
- 15. Multiple Choice
The relationship between pressure, temperature, and volume can be described by ___.
Boyle's Law
Newton's Law
The Ideal Gas Law
The formula E=MC^2
- 16. Multiple Choice
The size of an air compressor is determined by adding together the ___ of all powered items that use the compressor.
Cylinder volumes
Maximum pressure
Average free air consumption
Capacities
- 17. Multiple Choice
A start/stop control turns off the motor of a compressor when the ___ needed is reached.
Volume
Flow
Temperature
Pressure
- 18. Multiple Choice
In an air compressor system, the ___ is also called the receiver.
Intake filter/Silencer
Compressor
Storage tank
After-cooler
- 19. Multiple Choice
Most safety relief valves have a ___ which is used to test the operation of the valve.
Test button
Foot switch
Solenoid
Pull ring
- Answer choicesTagsAnswer choicesTags