Refrigeration and Air Conditioning

Vapor compression refrigeration is some what like ____________________?

Byadmin January 25, 2019August 16, 2021

Vapor compression refrigeration is some what like ____________________?

A. Carnot cycle
B. Rankine cycle
C. reversed Camot cycle
D. reversed Rankine cycle
E. none of the above

Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking 1 kW of work input. The refrigerating effect will be

Question: A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking 1 kW of work input. The refrigerating effect will be
[A].

1 kW
[B].
2 kW
[C].
3 kW
[D].
4 kW

Answer: Option D

Explanation:

No answer description available for this question.

Read More A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking 1 kW of work input. The refrigerating effect will be
Refrigeration and Air Conditioning

In vapor compression cycle, the condition of refrigerant is very wet vapor________________?

In vapor compression cycle, the condition of refrigerant is very wet vapor________________?

A. after passing through the condenser
B. before passing through the condenser
C. after passing through the expansion or throttle valve
D. before entering the expansion valve
E. before entering the compressor

Read More In vapor compression cycle, the condition of refrigerant is very wet vapor________________?
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

Kirchhoff’s law states that

Question: Kirchhoff’s law states that
[A].

the total radiation from a black body per second per unit area is directly proportional to the fourth power of the absolute temperature
[B].
the wave length corresponding to the maximum energy is proportional to the absolute temperature
[C].
the ratio of the emissive power and absorptive power of all bodies is the same and is equal to the emissive power of a perfectly black body
[D].
none of the above

Answer: Option C

Explanation:

No answer description available for this question.

Read More Kirchhoff’s law states that
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

During heating and humidification, the final relative humidity of air

Question: During heating and humidification, the final relative humidity of air
[A].

is higher than that of the entering air
[B].
is lower than that of the entering air
[C].
can be lower or higher than that of the entering air
[D].
none of the above

Answer: Option C

Explanation:

No answer description available for this question.

Read More During heating and humidification, the final relative humidity of air
Refrigeration and Air Conditioning

The relative coefficient of performance is_____________________?

The relative coefficient of performance is_____________________?

A. actual COP/fheoretical COP
B. theoretical COP/actual COP
C. actual COP x theoretical COP
D. 1-actual COP x theoretical COP
E. 1-actual COP/fheoretical COP.

Read More The relative coefficient of performance is_____________________?
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

During humidification process, __________ increases.

Question: During humidification process, __________ increases.
[A].

wet bulb temperature
[B].
relative humidity
[C].
dry bulb temperature
[D].
specific humidity

Answer: Option B

Explanation:

No answer description available for this question.

Read More During humidification process, __________ increases.

Similar Posts