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Heat Transfer

Defrosting of a refrigerator may be done by stopping the compressor for a short period.

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: Defrosting of a refrigerator may be done by stopping the compressor for a short period.
[A].

Correct

[B].

Incorrect

Answer: Option A

Explanation:

No answer description available for this question.

Defrosting of a refrigerator may be done by stopping the compressor for a short period. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

In a vapour compression system, the condition of refrigerant before passing through the condenser is

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: In a vapour compression system, the condition of refrigerant before passing through the condenser is
[A].

saturated liquid

[B].

wet vapour

[C].

dry saturated vapour

[D].

superheated vapour

Answer: Option D

Explanation:

No answer description available for this question.

In a vapour compression system, the condition of refrigerant before passing through the condenser is Read More »

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

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

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

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

During a refrigeration cycle, heat is rejected by the refrigerant in a

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: During a refrigeration cycle, heat is rejected by the refrigerant in a
[A].

compressor

[B].

condenser

[C].

evaporator

[D].

expansion valve

Answer: Option B

Explanation:

No answer description available for this question.

During a refrigeration cycle, heat is rejected by the refrigerant in a Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

In mechanical refrigeration system, the refrigerant occurs as liquid between condenser and expansion valve.

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: In mechanical refrigeration system, the refrigerant occurs as liquid between condenser and expansion valve.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.

In mechanical refrigeration system, the refrigerant occurs as liquid between condenser and expansion valve. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

In mechanical refrigeration system, the refrigerant has the maximum temperature

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: In mechanical refrigeration system, the refrigerant has the maximum temperature
[A].

in evaporator

[B].

before expansion valve

[C].

between compressor and condenser

[D].

between condenser and evaporator

Answer: Option C

Explanation:

No answer description available for this question.

In mechanical refrigeration system, the refrigerant has the maximum temperature Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

The air cooling system mostly used in transport type aircrafts is

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: The air cooling system mostly used in transport type aircrafts is
[A].

simple air cooling system

[B].

simple evaporative air cooling system

[C].

boot-strap air cooling system

[D].

all of these

Answer: Option C

Explanation:

No answer description available for this question.

The air cooling system mostly used in transport type aircrafts is Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

An ordinary passenger aircraft requires a cooling system of capacity.

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning /
Question: An ordinary passenger aircraft requires a cooling system of capacity.
[A].

2 TR

[B].

4 TR

[C].

8 TR

[D].

10 TR

Answer: Option C

Explanation:

No answer description available for this question.

An ordinary passenger aircraft requires a cooling system of capacity. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning