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jouranngreen108 jouranngreen108
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6 years ago
Which type of condenser requires the most maintenance?
 
  A) Water-cooled condensers
  B) Condensers do not require maintenance.
  C) Air-cooled condensers
  D) The maintenance requirements for air-cooled condensers and water-cooled condensers are comparable.


[Ques. 2] The most common HCFC refrigerant is which of the following?
 
  A) R-124 B) R-23 C) R-22 D) R-142


[Ques. 3] What material is used for air-conditioning drain lines?
 
  A) PVC B) Galvanized iron pipe
  C) CPVC D) Copper


[Ques. 4] Subcooling the liquid refrigerant increases system efficiency by:
 
  A) Ensuring a solid stream of liquid to the metering device.
  B) Ensuring no liquid enters the compressor.
  C) Adding refrigerant to the system that has already been cooled.
  D) Cooling off the compressor motor.


[Ques. 5] As it passes through the condenser, the refrigerant is:
 
  A) Desuperheated, condensed from a gas to a liquid, and subcooled.
  B) Superheated, condensed from a liquid to a vapor, and then subcooled.
  C) Condensed from a gas to a liquid, and then superheated.
  D) Condensed from a gas to a liquid, and then subcooled.
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Lissapoo12Lissapoo12
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6 years ago
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6 years ago
Helps a lot
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