Air refrigeration cycle is used in ____________________?

Byadmin January 25, 2019August 16, 2021

Air refrigeration cycle is used in ____________________?

A. domestic refrigerators
B. commercial refrigerators
C. air conditioning
D. gas liquefaction
E. such a cycle does not exist

Refrigeration and Air Conditioning

At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant_________________?

At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant_________________?

A. decreases
B. increases
C. remains same
D. depends on other factors
E. none of the above

Read More At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant_________________?
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

Dry bulb temperature is the temperature of air recorded by a thermometer, when

Question: Dry bulb temperature is the temperature of air recorded by a thermometer, when
[A].

it is not affected by the moisture present in the air
[B].
its bulb is surrounded by a wet cloth exposed to the air
[C].
the moisture present in it begins to condense
[D].
none of the above

Answer: Option A

Explanation:

No answer description available for this question.

Read More Dry bulb temperature is the temperature of air recorded by a thermometer, when
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

In a parallel flow heat exchanger, the rate of flow of heat and the rate of decrease of temperature are maximum.

Question: In a parallel flow heat exchanger, the rate of flow of heat and the rate of decrease of temperature are maximum.
[A].

Yes
[B].
No

Answer: Option A

Explanation:

No answer description available for this question.

Read More In a parallel flow heat exchanger, the rate of flow of heat and the rate of decrease of temperature are maximum.
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

The capillary tube is not used in large capacity refrigeration systems because

Question: The capillary tube is not used in large capacity refrigeration systems because
[A].

cost is too high
[B].
capacity control is not possible
[C].
it is made of copper
[D].
required pressure drop can not be achieved

Answer: Option B

Explanation:

No answer description available for this question.

Read More The capillary tube is not used in large capacity refrigeration systems because
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

In a heat exchanger with one fluid evaporating or condensing, the surface area required is least in

Question: In a heat exchanger with one fluid evaporating or condensing, the surface area required is least in
[A].

parallel flow
[B].
counter flow
[C].
cross flow
[D].
all of these

Answer: Option D

Explanation:

No answer description available for this question.

Read More In a heat exchanger with one fluid evaporating or condensing, the surface area required is least in

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