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Mechanical Engineering

In aqua-ammonia and Lithium-bromide water absorption refrigeration systems, the refrigerants are respectively

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: In aqua-ammonia and Lithium-bromide water absorption refrigeration systems, the refrigerants are respectively
[A].

water and water

[B].

water and lithium bromide

[C].

ammonia and lithium bromide

[D].

ammonia and water

Answer: Option D

Explanation:

No answer description available for this question.

In aqua-ammonia and Lithium-bromide water absorption refrigeration systems, the refrigerants are respectively Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

In aqua-ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water in

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: In aqua-ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water in
[A].

condenser

[B].

evaporator

[C].

absorber

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

In aqua-ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water in Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

In which of the following refrigeration system, waste heat can be effectively used?

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: In which of the following refrigeration system, waste heat can be effectively used?
[A].

Vapour compression cycle

[B].

Vapour absorption cycle

[C].

Air refrigeration cycle

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

In which of the following refrigeration system, waste heat can be effectively used? Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
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.

In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

Oil separator in a refrigeration cycle is installed

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
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.

Oil separator in a refrigeration cycle is installed Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

During gas charging in an ammonia vapour compression system, the connection is made at the compressor outlet.

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
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.

During gas charging in an ammonia vapour compression system, the connection is made at the compressor outlet. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

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)

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
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.

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) Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

A vapour absorption refrigerator uses __________ as a refrigerant.

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
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.

A vapour absorption refrigerator uses __________ as a refrigerant. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning