For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then

Refrigeration and Air Conditioning
For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then

Perfectly tight vapour seal should be used

Smaller cabinet should be used

Refrigerant with lower evaporation temperature should be used

Bigger cabinet should be used

Perfectly tight vapour seal should be used

Smaller cabinet should be used

Refrigerant with lower evaporation temperature should be used

Bigger cabinet should be used

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Refrigeration and Air Conditioning
A refrigeration system

Removes heat from a high temperature body and delivers it to a low temperature body

Rejects energy to a low temperature body

None of the listed here

Removes heat from a low temperature body and delivers it to a high temperature body

Removes heat from a high temperature body and delivers it to a low temperature body

Rejects energy to a low temperature body

None of the listed here

Removes heat from a low temperature body and delivers it to a high temperature body

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Refrigeration and Air Conditioning
A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be

1.33

4.33

2.33

3.33

1.33

4.33

2.33

3.33

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Refrigeration and Air Conditioning
Most of the domestic refrigerators work on the following refrigeration system

Vapour compression

Vapour absorption

Electrolux refrigerator

Carnot cycle

Vapour compression

Vapour absorption

Electrolux refrigerator

Carnot cycle

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Refrigeration and Air Conditioning
The superheated vapour region, in a pressure enthalpy chart, is represented by the space

None of these

To the left of saturated liquid line

Between the saturated liquid line and saturated vapour line

To the right of saturated liquid line

None of these

To the left of saturated liquid line

Between the saturated liquid line and saturated vapour line

To the right of saturated liquid line

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Refrigeration and Air Conditioning
A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be

Dirty condenser surface

Water temperature being high

All of these

Lack of cooling water

Dirty condenser surface

Water temperature being high

All of these

Lack of cooling water

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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then

Refrigeration and Air Conditioning A refrigeration system

Refrigeration and Air Conditioning A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be

Refrigeration and Air Conditioning Most of the domestic refrigerators work on the following refrigeration system

Refrigeration and Air Conditioning The superheated vapour region, in a pressure enthalpy chart, is represented by the space

Refrigeration and Air Conditioning A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be

Refrigeration and Air Conditioning
For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then

Refrigeration and Air Conditioning
A refrigeration system

Refrigeration and Air Conditioning
A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be

Refrigeration and Air Conditioning
Most of the domestic refrigerators work on the following refrigeration system

Refrigeration and Air Conditioning
The superheated vapour region, in a pressure enthalpy chart, is represented by the space

Refrigeration and Air Conditioning
A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be