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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s. The sensible heat factor for the process will be

0.67
0.3
1.5
0.6

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Refrigeration and Air Conditioning
Ammonia is

Toxic and non-inflammable
Non-inflammable
Highly toxic and inflammable
Non-toxic

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant before passing through the condenser is

Wet vapour
Saturated liquid
Dry saturated vapour
Superheated vapour

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

Centrifugal
Miniature sealed unit
Piston type reciprocating
Axial

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Refrigeration and Air Conditioning
The thermostatic expansion valve operates on the changes in the

None of these
Pressure in the evaporator
Temperature of the evaporator
Degree of superheat at exit from the evaporator

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

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

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MORE MCQ ON Refrigeration and Air Conditioning

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