Condensing temperature in a refrigerator is the temperature_________________?

Byadmin January 25, 2019August 16, 2021

Condensing temperature in a refrigerator is the temperature_________________?

A. of cooling medium
B. of freezing zone
C. of evaporator
D. at which refrigerant gas becomes liquid
E. condensing temperature of ice

Refrigeration and Air Conditioning

In vapor compression cycle the condition off refrigerant is dry saturated vapor________________?

In vapor compression cycle the condition off refrigerant is dry saturated vapor________________?

A. after passing through the condenser
B. before passing through the condenser
C. after passing through the expansion or throttle valve
D. before entering the expansion valve
E. before entering the compressor

Read More In vapor compression cycle the condition off refrigerant is dry saturated vapor________________?
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

In a pressure enthalpy chart, the space between the saturated liquid line and saturated vapour line, represents sub-cooled liquid region.

Question: In a pressure enthalpy chart, the space between the saturated liquid line and saturated vapour line, represents sub-cooled liquid region.
[A].

True
[B].
False

Answer: Option B

Explanation:

No answer description available for this question.

Read More In a pressure enthalpy chart, the space between the saturated liquid line and saturated vapour line, represents sub-cooled liquid region.
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

Fouling factor is used

Question: Fouling factor is used
[A].

in heat exchanger design as a safety factor
[B].
in case of Newtonian fluids
[C].
when a liquid exchanges heat with a gas
[D].
none of the above

Answer: Option A

Explanation:

No answer description available for this question.

Read More Fouling factor is used
Heat Transfer | Mechanical Engineering | Refrigeration and Air Conditioning

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

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.

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

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.

Read More 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)
Refrigeration and Air Conditioning

The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will__________________?

The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeg the evaporator temperature constant, will__________________?

A. increase
B. decrease
C. may increase or decrease depending on the type of refrigerant used
D. remain unaffected
E. unpredictable

Read More The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will__________________?

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