Ammonia-absorption refrigeration cycle requires__________________?

Byadmin January 25, 2019August 16, 2021

Ammonia-absorption refrigeration cycle requires__________________?

A. very little work input
B. maximum work input
C. nearly same work input as for vapour compression cycle
D. zero work input
E. none of the above

Refrigeration and Air Conditioning

The bank of tubes at the back of domestic refrigerator are _________________?

The bank of tubes at the back of domestic refrigerator are _________________?

A. condenser tubes
B. evaporator tubes
C. refrigerant cooling tubes
D. capillary tubes
E. throttling device

Read More The bank of tubes at the back of domestic refrigerator are _________________?
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________________?
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

In a lithium bromide absorption refrigeration system

Question: In a lithium bromide absorption refrigeration system
[A].

lithium bromide is used as a refrigerant and water as an absorbent
[B].
water is used as a refrigerant and lithium bromide as an absorbent
[C].
ammonia is used as a refrigerant and lithium bromide as an absorbent
[D].
none of the above

Answer: Option B

Explanation:

No answer description available for this question.

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Refrigeration and Air Conditioning

If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be________________?

If the evaporator temperature of a plant is lowered, keeg the condenser temperature constant, the h.p. of compressor required will be________________?

A. same
B. more
C. less
D. more/less depending on rating
E. unpredictable

Read More If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be________________?
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
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

A simple air cooling system is good for __________ flight speeds.

Question: A simple air cooling system is good for __________ flight speeds.
[A].

low
[B].
high

Answer: Option A

Explanation:

No answer description available for this question.

Read More A simple air cooling system is good for __________ flight speeds.

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