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Refrigeration and Air Conditioning

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.

Evaporator
Expansion valve
Compressor
Condenser

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Refrigeration and Air Conditioning
The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure, is called

Degree of saturation
Absolute humidity
Relative humidity
Humidity ratio

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Refrigeration and Air Conditioning
The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases,

May be higher or lower depending upon the nature of non-condensable gases
Will remain unaffected
Will be higher
Will be lower

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Refrigeration and Air Conditioning
The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to

Bright green
Red
Yellow
Orange

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Refrigeration and Air Conditioning
For large tonnage (more than 200 TR) air-conditioning applications, the compressor recommended is

Reciprocating
Screw
Rotating
Centrifugal

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Refrigeration and Air Conditioning
Moisture in Freon refrigeration system causes

Ineffective refrigeration
High power consumption
Corrosion of whole system
Freezing automatic regulating valve

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MORE MCQ ON Refrigeration and Air Conditioning

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