Refrigeration And Air Conditioning - Study Mode

[#171] In a vapour compression refrigeration system, a throttle valve is used in place of an expander because
Correct Answer

(C) The positive work in isentropic expansion of liquid is very small

Explanation

Solution: In a vapour compression refrigeration system, a throttle valve is used in place of an expander because The positive work in isentropic expansion of liquid is very small

[#172] In a refrigeration system, heat absorbed in comparison to heat rejected is
Correct Answer

(B) Less

Explanation

Solution: In a refrigeration system, heat absorbed in comparison to heat rejected is less

[#173] A refrigerant with the highest critical pressure is
Correct Answer

(D) Ammonia

Explanation

Solution: A refrigerant with the highest critical pressure is Ammonia

[#174] The cooling system used for supersonic aircrafts and rockets is
Correct Answer

(D) Regenerative air cooling system

Explanation

Solution: The cooling system used for supersonic aircrafts and rockets is Regenerative air cooling system

[#175] Presence of moisture in a refrigerant affects the working of
Correct Answer

(D) Expansion valve

Explanation

Solution: Presence of moisture in a refrigerant affects the working of expansion valve