Question: A vapour absorption refrigeration system
[A].

gives noisy operation

[B].

gives quiet operation

[C].

requires little power consumption

[D].

cools below 0° C

Answer: Option B

Explanation:

No answer description available for this question.

Question: In electrolux refrigerator
[A].

ammonia is absorbed in hydrogen

[B].

ammonia is absorbed in water

[C].

ammonia evaporates in hydrogen

[D].

hydrogen evaporates in ammonia

Answer: Option C

Explanation:

No answer description available for this question.

Question: In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by
[A].

liquid pump

[B].

generator

[C].

absorber and generator

[D].

absorber, generator and liquid pump

Answer: Option D

Explanation:

No answer description available for this question.

Question: Oil separator in a refrigeration cycle is installed
[A].

before compressor

[B].

between compressor and condenser

[C].

between condenser and evaporator

[D].

between condenser and expansion valve

Answer: Option B

Explanation:

No answer description available for this question.

Question: During gas charging in an ammonia vapour compression system, the connection is made at the compressor outlet.
[A].

Agree

[B].

Disagree

Answer: Option A

Explanation:

No answer description available for this question.

Question: The C.O.P. of an absorption type refrigerator is given by (where T1 = Temperature at which the working substance receives heat, T2 = Temperature of cooling water, and T3 = Evaporator temperature)
[A].

[B].

[C].

[D].

Answer: Option B

Explanation:

No answer description available for this question.

Question: A vapour absorption refrigerator uses __________ as a refrigerant.
[A].

water

[B].

ammonia

[C].

freon

[D].

aqua-ammonia

Answer: Option D

Explanation:

No answer description available for this question.

Question: In order to collect liquid refrigerant and to prevent it from going to a __________ , a device known as accumulator is used at the suction of compressor.
[A].

compressor

[B].

condenser

[C].

expansion valve

[D].

evaporator

Answer: Option A

Explanation:

No answer description available for this question.

Question: During sub-cooling, sensible heat from a liquid refrigerant is removed.
[A].

Yes

[B].

No

Answer: Option A

Explanation:

No answer description available for this question.