10.RRB ALP CBT2 RAC Question bank #2

RAC

In an air washer, air ……….

  • Is heated
  • Cooled
  • Humidified
  • All of these processes can happen depending on the temperature of air

In a direct expansion system the product to be cooled ……….

  • Comes directly in contact with the refrigerant flowing inside the evaporator and mixes with it
  • Is outside the surface of the evaporator and cooled by transfer of heat to the refrigerant flowing inside the evaporator
  • Is cooled by an intermediate coolant which is cooled by the refrigerant flowing inside the evaporator
  • None of these

Direct expansion coil evaporator is —————- :

  • Flooded type evaporator
  • Dry type evaporator
  • Wet type evaporator
  • None of these

Dry evaporator is one in which?

  • The exit from evaporator is dry saturated refrigerant
  • The exit from evaporator is superheated refrigerant
  • The exit from evaporator has refrigerant with high dryness fraction.
  • The inlet to the evaporator has refrigerant with some dryness fraction
10.RRB ALP CBT2 RAC Question bank #2