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Domestic Refrigerator are specified by : 
1. cool space volume
2. heat transfer rate alone
3. color of front panel
4. none of the above

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Correct Answer - Option 1 : cool space volume

Explanation

Domestic refrigerator

  • A domestic refrigerator is essentially small cold storage where several food products such as ice cream, meat, fruits, milk etc can be stored at reduced pressure.
  • A domestic refrigerator uses a vapour compression refrigeration system for maintaining required storage conditions.
  • The domestic refrigerator is normally specified by the storage volume (gross or net) e.g a 300-litre refrigerator means a domestic refrigerator with an internal storage volume of 300 litres.
  • The size of the domestic refrigerator varies from 100 litres to 600 litres.
  • The domestic refrigerator uses either HFC, 134a or hydrocarbons as refrigerants.
  • Domestic refrigerators use a hermetic compressor with a capillary tube as an expansion device.
  • The condenser of the small refrigerators is of natural convection type while larger refrigerators may have a fan for forced air circulation over the condenser.

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