Three different design screw compressors are:

Three different design screw compressors are:
 
  A) Single screw with gate rotors, dual screw, and triple screw.
  B) Single screw, compound screw, and compound-complex screw.
  C) Micro screw for small appliances, standard screw for 25-ton applications, and mega screw for industrial applications.
  D) Open screw, semihermetic screw, and variable screw.

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[Ques. 2] Where are plate evaporators typically used?
 
  A) Direct expansion chillers B) Small residential refrigerators
  C) Large flooded chillers D) Air-conditioning coils

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[Ques. 3] What is the maximum reading on a typical R-22 compound gauge?
 
  A) 120 psig B) 500 psig C) 300 psig D) 800 psig

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[Ques. 4] In what circumstances would bare-pipe evaporators most likely be used?
 
  A) Medium-temperature walk-in cooler evaporators
  B) Air-conditioning coils
  C) Heat pump indoor coils
  D) Low-temperature refrigeration storage

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[Ques. 5] Chillers can be classified as:
 
  A) Natural-draft or induced-draft. B) Fire tube or water tube.
  C) Flooded or direct expansion. D) Hyperbaric or hypobaric.