In a refrigeration system, heat absorbed in comparison to heat rejected is_________________?

Byadmin January 25, 2019August 16, 2021

In a refrigeration system, heat absorbed in comparison to heat rejected is_________________?

A. more
B. less
C. same
D. more for small capacity and less for high capacity
E. less for small capacity and more for high capacity

Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be

Question: A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be
[A].

lack of cooling water
[B].
water temperature being high
[C].
dirty condenser surface
[D].
all of these

Answer: Option D

Explanation:

No answer description available for this question.

Read More A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be
Refrigeration and Air Conditioning

One ton refrigeratiqn corresponds to_________________?

One ton refrigeratiqn corresponds to_________________?

A. 50 kcal/min
B. 50 kcal/kr
C. 80 kcal/min
D. 80 kcal/hr
E. 1000 kcal/day

Read More One ton refrigeratiqn corresponds to_________________?
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

In a pressure enthalpy chart, the space between the saturated liquid line and saturated vapour line, represents sub-cooled liquid region.

Question: In a pressure enthalpy chart, the space between the saturated liquid line and saturated vapour line, represents sub-cooled liquid region.
[A].

True
[B].
False

Answer: Option B

Explanation:

No answer description available for this question.

Read More In a pressure enthalpy chart, the space between the saturated liquid line and saturated vapour line, represents sub-cooled liquid region.
Refrigeration and Air Conditioning

For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then_________________?

For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then_________________?

A. bigger cabinet should be used
B. smaller cabinet should be used
C. perfectly tight vapour seal should be used
D. refrigerant with lower evaporation temperature should be used
E. refrigerant with high boiling point must be used

Read More For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then_________________?
Refrigeration and Air Conditioning

Super heating in a refrigeration cycle __________________?

Super heating in a refrigeration cycle __________________?

A. increases COP
B. decreases COP
C. COP remains unaltered
D. other factors decide COP
E. unpredictable

Read More Super heating in a refrigeration cycle __________________?
Refrigeration and Air Conditioning

Highest temperature encountered in refrigeration cycle should be________________?

Highest temperature encountered in refrigeration cycle should be________________?

A. near critical temperature of refrigerant
B. above critical temperature
C. at critica. temperature
D. much below critical temperature
E. could be anywhere

Read More Highest temperature encountered in refrigeration cycle should be________________?

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