CONDENSER EXPANSION VALVE AND EVAPORATOR - Practice Mode

1) What is the use of dehydrator?

Absorb oil Absorb heat Absorb refrigerant Absorb moisture

Correct Answer: Absorb moisture

2) How pressure drop is achieved in capillary tube of refrigeration cycle?

The friction between refrigerant and tube The friction between refrigerant and oil The friction between piston and cylinder The friction between belt and pulley

Correct Answer: The friction between refrigerant and tube

3) What is the desiccant used in dehydrator of hydrocarbon charged RAC unit?

Silica gel Ammonia Sulphur dioxide Calcium chloride

Correct Answer: Silica gel

4) Which is the constant operating condition of TEV?

Super heat at suction line point Evaporator pressure at its inlet Enthalpy at the evaporator outlet Entropy at the condenser outlet

Correct Answer: Super heat at suction line point

5) Which type of defrosting method is used in frost free refrigerator?

Hot water defrosting Manual defrosting Hot gas defrosting Electric defrosting

Correct Answer: Electric defrosting

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