Refrigerant compressors:
a. Must have intercoolers
b. Could be centrifugal type
c. Use automotive-style suction and discharge valves
d. Have more cooling fins than air compressors
e. Discharge directly into the evaporator
Answer: B
Learn More :
Power Engineering Chapter 116
- A compressor seal is required to prevent:
- The function of a safety heads is to:
- Which part is not a part of a reciprocating compressor?
- Consider a single stage, single acting reciprocating compressor. Calculate the piston displacement in cubic metres per minute, if given the following: piston stroke 12 cm piston diameter 10 cm piston speed 1100 working strokes per minute
- Which one is NOT true about rotating mechanical seals
- Packing gland seals are used on what compressor?
- Shaft seals are used on what compressor?
- Advantages of the centrifugal compressor are?
- Helical rotors revolve at speeds up to ___ r/min
- Reciprocating Compressor Types are? i. Open type ii. Hermetic type iii. Semihermetic type iv. Rotating sliding vane design v. Helical rotor design
- Which of the following compressor types uses impellers to draw in vapour?
- In a refrigeration system, the purpose of the compressor is to
- Which of the following is the compressor responsible for doing? i) Maintains a high pressure in the condenser ii) Maintains a low pressure in the evaporator iii) Raises the pressure of the refrigerant
- Which of the following is not a function of the compressor in a refrigeration system?
- The pressure ratio of a refrigeration compressor can be calculated by dividing the:
- In a sliding vane design refrigeration compressor, a good seal is maintained between the vanes and the cylinder by:
- Which of the following is NOT a function of the refrigeration compressor?
- A stationary crankshaft seal used on refrigeration compressors, which consists of a metallic bellows soldered at one end to a ring, and which presses against a shoulder on the shaft is called a:
- For a Helical Rotor Design rotary refrigeration compressor, which of the following statements is true?
- Which of the following is NOT considered a rotary refrigeration compressor design?
- A negative factor of Hermetic Type refrigeration compressors is:
- The safety head of a refrigeration compressor is designed to:
- Refrigerant compressors: