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WorksheetsCompressor
Total questions: 21
Worksheet time: 21mins
Name
The Centrifugal air compressor ___.
Has valves that open and close at the proper time
Is only made in a single stage design
Uses a series of rotors equipped with blades
Uses an impeller to impart radial momentum to the air
The reciprocating piston air compressor ___.
Has valves that open and close at the proper time
Is seldom used because of limited applications
Is similar to a turbine found in a jet aircraft
Is only used in large manufacturing plants
The air compressor ___ switch is used to start and stop the air compressor’s motor.
Pressure
Reed
Vacuum
Proximity
A positive displacement air compressor ___.
Recompresses the same volume of air twice
Compresses the air by increasing the velocity of the air
Produces a new volume of air for every stroke
Is best suited for high flow rate applications
In a reciprocating piston air compressor ___.
Both valves are never closed
The intake valve is open as the piston moves down
Both valves are never open
The intake valve is open as the piston moves up
A two stage compressor ___.
Doubles the flow
Has two pistons in each cylinder
Compresses the same volume of air twice
Has two pistons that move up and down at the same time.
In an air compressor system, the tank drain ___.
Is used to remove water from the tank
Should only be opened for annual cleaning of the tank
Can serve as a pressure relief valve
Should be hard wired shut
In an air compressor system, the ___ is also called the receiver.
Intake filter/Silencer
Storage tank
Compressor
Aftercooler
Causes airflow to slow down, stop or even reverse its direction
Axial flow compressor
Compressor surge
Compressor stall
Is a very severe form of compressor stall
Axial flow compressor
Compressor surge
Compressor stall
Compressors in which air is compressed in sealed spaces or between two engaging surfaces are called?
Rotodynamic compressors
Positive Displacement compressor
Centrifugal compressors
Axial flow compressors
The following are types of rotary compressors except ___.
Lobe Compressor
Scroll Compressor
Diaphragm Compressor
Screw Compressor
Type of dynamic compressors wherein it has few moving parts, energy efficient, and can provide higher flows ___.
Centrifugal compressor
Single Stage compressor
Rotary Compressor
Compressors increase the pressure of gases and vapors
True
False
This compressors use inward stroke of piston to draw gas into a chamber and then use an outward stroke to positively displace the gas.
Dynamic Compressor
Reciprocating Compressor
Rotary Compressor
Centrifugal Compressor
In the multi-stage compressor, the high temperature damages the cylinder head and burns lubricating oil.
True
False
Have two compression chambers on either side of a piston.
Two stage compressor
Axial compressor
Single stage compressor
Scroll compressor
Friction between the packing and piston rod is increased by the injection of lubricating oil into the stuffing box.
True
False
Prevent process gases from leaking to the atmosphere where the compressor shaft exits the casing.
Lubrication System
Seal System
Packing System
Cooling System
What connection is required on a compressed air tank, besides the Safety relief and the process connection?
Secondary process connection
Secondary Safety Relief
Vent
Condensate Blowdown Drain
