COMPRESSOR MODULE 03302 TEST
QUESTIONS WITH VERIFIED
ANSWERS
What capacity control method is popular with open and semi hermetic reciprocating
compressor's - Answer-Cylinder unloading
The compressor displacement equals the rpm of the drive motor multiplied by - Answer-
piston displacement
To control capacity, scroll compressors have typically used a - Answer-Refrigerant
bypass method
It's simple capacity control method that provides capacity steps of 25% 50% and 75%
using a plug valve would be found on a - Answer-Screw compressor
Slide valves allow screw compressors to very capacity from full capacity 100% to as low
as - Answer-10% capacity
Throttling valves are used for capacity control on a - Answer-Centrifugal compressor
Flooded starts might be traced back to a - Answer-Failed crank case heater
Freezing of the systems expansion device can be an indication of - Answer-Moisture in
the system
Purging refrigerant lines with nitrogen during brazing prevents - Answer-Copper oxide
formation
About how many times above the normal running current value will be measured if a
three phase compressor motor is single-phasing? - Answer-1.5 times
Which statement about internal line break overloads is correct - Answer-They
automatically reset
For single face compressor which current carrying lead does a current transformer (CT)
Monitor current in? - Answer-Common
High and low pressure safety switches are installed in - Answer-Series in the
compressors control circuit
QUESTIONS WITH VERIFIED
ANSWERS
What capacity control method is popular with open and semi hermetic reciprocating
compressor's - Answer-Cylinder unloading
The compressor displacement equals the rpm of the drive motor multiplied by - Answer-
piston displacement
To control capacity, scroll compressors have typically used a - Answer-Refrigerant
bypass method
It's simple capacity control method that provides capacity steps of 25% 50% and 75%
using a plug valve would be found on a - Answer-Screw compressor
Slide valves allow screw compressors to very capacity from full capacity 100% to as low
as - Answer-10% capacity
Throttling valves are used for capacity control on a - Answer-Centrifugal compressor
Flooded starts might be traced back to a - Answer-Failed crank case heater
Freezing of the systems expansion device can be an indication of - Answer-Moisture in
the system
Purging refrigerant lines with nitrogen during brazing prevents - Answer-Copper oxide
formation
About how many times above the normal running current value will be measured if a
three phase compressor motor is single-phasing? - Answer-1.5 times
Which statement about internal line break overloads is correct - Answer-They
automatically reset
For single face compressor which current carrying lead does a current transformer (CT)
Monitor current in? - Answer-Common
High and low pressure safety switches are installed in - Answer-Series in the
compressors control circuit
