The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is

Refrigeration and Air Conditioning
The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is

7.44 kW

18.6 kW

3.72 kW

1.86 kW

7.44 kW

18.6 kW

3.72 kW

1.86 kW

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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
An Electrolux refrigerator is called a ___ absorption system.

Single fluid

None of the listed here

Two fluids

Three fluids

Single fluid

None of the listed here

Two fluids

Three fluids

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Refrigeration and Air Conditioning
During heating and humidification, the final relative humidity of air

Is lower than that of the entering air

Is higher than that of the entering air

None of the listed here

Can be lower or higher than that of the entering air

Is lower than that of the entering air

Is higher than that of the entering air

None of the listed here

Can be lower or higher than that of the entering air

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Refrigeration and Air Conditioning
In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is

Cooled and dehumidified

Cooled and humidified

Heated and humidified

Heated and dehumidified

Cooled and dehumidified

Cooled and humidified

Heated and humidified

Heated and dehumidified

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Refrigeration and Air Conditioning
For unsaturated air, the dew point temperature is __________ wet bulb temperature.

More than

Equal to

Less than

None of these

More than

Equal to

Less than

None of these

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Refrigeration and Air Conditioning

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

Refrigeration and Air Conditioning An Electrolux refrigerator is called a ___ absorption system.

Refrigeration and Air Conditioning During heating and humidification, the final relative humidity of air

Refrigeration and Air Conditioning In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is

Refrigeration and Air Conditioning For unsaturated air, the dew point temperature is __________ wet bulb temperature.

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

Refrigeration and Air Conditioning
An Electrolux refrigerator is called a ___ absorption system.

Refrigeration and Air Conditioning
During heating and humidification, the final relative humidity of air

Refrigeration and Air Conditioning
In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is

Refrigeration and Air Conditioning
For unsaturated air, the dew point temperature is __________ wet bulb temperature.