The vapor pressure of refrigerant should be_________________?

Byadmin January 25, 2019August 16, 2021

The vapor pressure of refrigerant should be_________________?

A. lower than atmospheric pressure
B. higher than atmospheric pressure
C. equal to atmospheric pressure
D. could be anything
E. none of the above

Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

The C.O.P. of a Carnot refrigerator in winter will be __________ as compared to C.O.P. in summer.

Question: The C.O.P. of a Carnot refrigerator in winter will be __________ as compared to C.O.P. in summer.
[A].

same
[B].
lower
[C].
higher

Answer: Option C

Explanation:

No answer description available for this question.

Read More The C.O.P. of a Carnot refrigerator in winter will be __________ as compared to C.O.P. in summer.
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_________________?
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

The capacity of a domestic refrigerator is in the range of

Question: The capacity of a domestic refrigerator is in the range of
[A].

0.1 to 0.3 TR
[B].
1 to 3 TR
[C].
3 to 5 TR
[D].
5 to 7 TR

Answer: Option A

Explanation:

No answer description available for this question.

Read More The capacity of a domestic refrigerator is in the range of
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T1 = Lowest absolute temperature, and T2 = Highest absolute temperature)

Question: The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T1 = Lowest absolute temperature, and T2 = Highest absolute temperature)
[A].

[B].

[C].

[D].

Answer: Option A

Explanation:

No answer description available for this question.

Read More The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T1 = Lowest absolute temperature, and T2 = Highest absolute temperature)
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

In a reversed Brayton cycle, the heat is absorbed by the air during

Question: In a reversed Brayton cycle, the heat is absorbed by the air during
[A].

isentropic compression process
[B].
constant pressure cooling process
[C].
isentropic expansion process
[D].
constant pressure expansion process

Answer: Option D

Explanation:

No answer description available for this question.

Read More In a reversed Brayton cycle, the heat is absorbed by the air during
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is

Question: In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is
[A].

high pressure saturated liquid
[B].
wet vapour
[C].
very wet vapour
[D].
dry vapour

Answer: Option A

Explanation:

No answer description available for this question.

Read More In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is

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