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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
For air conditioning the operation theater in a hospital, the percentage of outside air in the air supplied is

Zero
100
50
20

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

Miniature sealed unit
Axial
Piston type reciprocating
Centrifugal

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Refrigeration and Air Conditioning
During a refrigeration cycle, heat is rejected by the refrigerant in a

Compressor
Expansion valve
Condenser
Evaporator

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Refrigeration and Air Conditioning
The leaks in a refrigeration system using Freon are detected by

Halide torch which on detection produces greenish flame lighting
Smelling
Using reagents
Sulphur sticks which on detection gives white smoke

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

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

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Refrigeration and Air Conditioning
Air refrigeration operates on

Carnot cycle
Reversed Carnot cycle
Brayton cycle
Rankine’s cycle

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MORE MCQ ON Refrigeration and Air Conditioning

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