NYC Refrigeration Exam Questions with
Correct Answers
132-picture of pump - Answer-90* reducing elbow, pump suction, pump casing, pump
discharge, check valve.
133-picture of a compressor - Answer-Oil charging port allows for the addition and
removal of oil from the compressor
134- A facility has failed to maintain water treatment to a refrigeration system. - Answer-
Increase the condenser pressure
135-Which of these compressors is a non positive displacement type of compressor -
Answer-Centrifugal
136-Where is emergency power not required according to code? - Answer-Data centers
137-What is the most widely used regulation book by operating engineers? - Answer-
EPA
138-What type of refrigerant do you need FDNY approval for? - Answer-Propane
139-Centrifugal pump pressure is determined by? - Answer-Speed of motor
140-A single phase VAC circuit has 2 hot wires, the third is a? - Answer-ground
141-liquid refrigerant that has passed through the metering device is a? - Answer-Low
pressure saturated liquid
142-With a 75 degree dry bulb and 73 degree wet bulb the relative humidity is? -
Answer-Very high
143-After receiving liquid refrigerant from a centrifugal chiller, the next step is to? -
Answer-Recover vapor
144-Where is the muffler located? - Answer-Between the compressor and the
condenser
145-What is not required to be serviced annually? - Answer-Compressors
146-What is the advantage of a shell and tube condenser, as opposed to a shell and
coil condenser - Answer-Better heat transfer
147-Fusible plugs on a condenser? - Answer-The melting point is marked on it.
Correct Answers
132-picture of pump - Answer-90* reducing elbow, pump suction, pump casing, pump
discharge, check valve.
133-picture of a compressor - Answer-Oil charging port allows for the addition and
removal of oil from the compressor
134- A facility has failed to maintain water treatment to a refrigeration system. - Answer-
Increase the condenser pressure
135-Which of these compressors is a non positive displacement type of compressor -
Answer-Centrifugal
136-Where is emergency power not required according to code? - Answer-Data centers
137-What is the most widely used regulation book by operating engineers? - Answer-
EPA
138-What type of refrigerant do you need FDNY approval for? - Answer-Propane
139-Centrifugal pump pressure is determined by? - Answer-Speed of motor
140-A single phase VAC circuit has 2 hot wires, the third is a? - Answer-ground
141-liquid refrigerant that has passed through the metering device is a? - Answer-Low
pressure saturated liquid
142-With a 75 degree dry bulb and 73 degree wet bulb the relative humidity is? -
Answer-Very high
143-After receiving liquid refrigerant from a centrifugal chiller, the next step is to? -
Answer-Recover vapor
144-Where is the muffler located? - Answer-Between the compressor and the
condenser
145-What is not required to be serviced annually? - Answer-Compressors
146-What is the advantage of a shell and tube condenser, as opposed to a shell and
coil condenser - Answer-Better heat transfer
147-Fusible plugs on a condenser? - Answer-The melting point is marked on it.
