When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be

Refrigeration and Air Conditioning
When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be

Cooled and humidified

Heated and dehumidified

Cooled and dehumidified

Heated and humidified

Cooled and humidified

Heated and dehumidified

Cooled and dehumidified

Heated and humidified

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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

3.72 kW

18.6 kW

1.86 kW

7.44 kW

3.72 kW

18.6 kW

1.86 kW

7.44 kW

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Refrigeration and Air Conditioning
Air refrigeration cycle is used in

Gas liquefaction

Air conditioning

Domestic refrigerators

Commercial refrigerators

Gas liquefaction

Air conditioning

Domestic refrigerators

Commercial refrigerators

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Refrigeration and Air Conditioning
The specific humidity during humidification process

Increases

Decreases

None of these

Remains constant

Increases

Decreases

None of these

Remains constant

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Refrigeration and Air Conditioning
The capillary tube is not used in large capacity refrigeration systems because

Required pressure drop cannot be achieved

Cost is too high

It is made of copper

Capacity control is not possible

Required pressure drop cannot be achieved

Cost is too high

It is made of copper

Capacity control is not possible

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Refrigeration and Air Conditioning
In a refrigerating machine, heat rejected is _________ heat absorbed.

None of these

Less than

Equal to

Greater than

None of these

Less than

Equal to

Greater than

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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be

Refrigeration and Air Conditioning Air refrigeration cycle is used in

Refrigeration and Air Conditioning The specific humidity during humidification process

Refrigeration and Air Conditioning The capillary tube is not used in large capacity refrigeration systems because

Refrigeration and Air Conditioning In a refrigerating machine, heat rejected is _________ heat absorbed.

Refrigeration and Air Conditioning
When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be

Refrigeration and Air Conditioning
Air refrigeration cycle is used in

Refrigeration and Air Conditioning
The specific humidity during humidification process

Refrigeration and Air Conditioning
The capillary tube is not used in large capacity refrigeration systems because

Refrigeration and Air Conditioning
In a refrigerating machine, heat rejected is _________ heat absorbed.