HVAC 03302 Exam Questions with Correct
Answers
what happens in reciprocating compressor when lowest point
Suction valve closes
Oil scoops are found in
Reciprocating compressor
What compressor has no suction but discharge valve
Rotary
What is unique about internal discharge temperature safety device in some scroll
compressors
some are actually valves that bypass refrigerant
In a screw compressor the motor drives the
Male rotor
Which compressor often uses multiple stage of compression to increase pressure
difference
Centrifugal
What capacity control method is popular with open and semi hermetic reciprocating
compressor
cylinder unloading
The compressor displacement equals the rpm of the drive motor multiplied by
The piston displacement
To control capacity scroll compressors typically use
refrigerant bypass method
A simple capacity control method that provides capacity steps of 2550 and 75 using a
plug valve can be found on
Answers
what happens in reciprocating compressor when lowest point
Suction valve closes
Oil scoops are found in
Reciprocating compressor
What compressor has no suction but discharge valve
Rotary
What is unique about internal discharge temperature safety device in some scroll
compressors
some are actually valves that bypass refrigerant
In a screw compressor the motor drives the
Male rotor
Which compressor often uses multiple stage of compression to increase pressure
difference
Centrifugal
What capacity control method is popular with open and semi hermetic reciprocating
compressor
cylinder unloading
The compressor displacement equals the rpm of the drive motor multiplied by
The piston displacement
To control capacity scroll compressors typically use
refrigerant bypass method
A simple capacity control method that provides capacity steps of 2550 and 75 using a
plug valve can be found on
