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Moisture should be removed from refrigerants to avoid

Question: Moisture should be removed from refrigerants to avoid
[A].

freezing at the expansion valve

[B].

restriction to refrigerant flow

[C].

corrosion of steel plates

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Moisture should be removed from refrigerants to avoid Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

Which of the following refrigerant has the maximum ozone depletion potential in the stratophere?

Question: Which of the following refrigerant has the maximum ozone depletion potential in the stratophere?
[A].

Ammonia

[B].

Carbon dioxide

[C].

Sulphur dioxide

[D].

Flourine

Answer: Option D

Explanation:

No answer description available for this question.

Which of the following refrigerant has the maximum ozone depletion potential in the stratophere? Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

Environmental protection agencies advice against the use of chloro-fluoro-carbon refrigerants since

Question: Environmental protection agencies advice against the use of chloro-fluoro-carbon refrigerants since
[A].

these react with water vapour and cause acid rain

[B].

these react with plants and cause green-house effect

[C].

these react with oxygen and cause its depletion

[D].

these react with ozone layer

Answer: Option D

Explanation:

No answer description available for this question.

Environmental protection agencies advice against the use of chloro-fluoro-carbon refrigerants since Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

In larger industrial and commercial reciprocating compression systems, refrigerent widely used is

Question: In larger industrial and commercial reciprocating compression systems, refrigerent widely used is
[A].

ammonia

[B].

carbon dioxide

[C].

sulphur dioxide

[D].

R-12

Answer: Option A

Explanation:

No answer description available for this question.

In larger industrial and commercial reciprocating compression systems, refrigerent widely used is Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

Which of the following refrigerant is highly toxic and flammable?

Question: Which of the following refrigerant is highly toxic and flammable?
[A].

Ammonia

[B].

Carbon dioxide

[C].

Sulphur dioxide

[D].

R-12

Answer: Option A

Explanation:

No answer description available for this question.

Which of the following refrigerant is highly toxic and flammable? Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

Which of the following refrigerant has the highest freezing point.

Question: Which of the following refrigerant has the highest freezing point.
[A].

Ammonia

[B].

Carbon dioxide

[C].

Sulphur dioxide

[D].

R-12

Answer: Option B

Explanation:

No answer description available for this question.

Which of the following refrigerant has the highest freezing point. Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning

Which of the following refrigerant has the lowest boiling point?

Question: Which of the following refrigerant has the lowest boiling point?
[A].

Ammonia

[B].

Carbon dioxide

[C].

Sulphur dioxide

[D].

R-12

Answer: Option B

Explanation:

No answer description available for this question.

Which of the following refrigerant has the lowest boiling point? Read More »

Heat Transfer, Mechanical Engineering, Refrigeration and Air Conditioning