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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of

Brass
Aluminium
Copper
Steel

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

None of these
Greater than
Less than
Equal to

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid

After passing through the expansion or throttle valve
Before passing through the condenser
After passing through the condenser
Before entering the expansion valve

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Refrigeration and Air Conditioning
The relative humidity lines on a psychrometric chart are

Vertical and uniformly spaced
Horizontal and uniformly spaced
Horizontal and non-uniformly spaced
Curved lines

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Refrigeration and Air Conditioning
In a refrigeration system, the expansion device is connected between the

Compressor and condenser
Receiver and evaporator
Condenser and receiver
Evaporator and compressor

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Refrigeration and Air Conditioning
A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called

High side float valve
Low side float valve
Thermostatic expansion valve
Automatic expansion valve

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MORE MCQ ON Refrigeration and Air Conditioning

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