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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Accumulators should have adequate volume to store refrigerant charge at least

0.25
0.75
0.5
0.1

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Refrigeration and Air Conditioning
The domestic refrigerator uses following type of compressor

Piston type reciprocating
Miniature sealed unit
Centrifugal
Axial

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Refrigeration and Air Conditioning
Carbon dioxide is

Odourless
All of the listed here
Non-flammable
Colourless

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Refrigeration and Air Conditioning
In order to collect liquid refrigerant and to prevent it from going to a ________, a device known as accumulator is used at the suction of compressor.

Compressor
Expansion valve
Evaporator
Condenser

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Refrigeration and Air Conditioning
In chemical dehumidification process,

All of these
Wet bulb temperature decreases
Dry bulb temperature increases
Dew point temperature decreases

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Refrigeration and Air Conditioning
The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents

Condensation of the refrigerant vapour
Compression of the refrigerant vapour
Evaporation of the refrigerant liquid
Metering of the refrigerant liquid

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