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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
An evaporator is also known as

All of these
Freezing coil
Cooling coil
Chilling coil

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Refrigeration and Air Conditioning
The vertical and uniformly spaced lines on a psychrometric chart indicates

Dew point temperature
Specific humidity
Wet bulb temperature
Dry bulb temperature

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

Copper
Steel
Brass
Aluminium

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Refrigeration and Air Conditioning
The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and

Lithium bromide
Sulphur dioxide
Carbon dioxide
R-12

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Refrigeration and Air Conditioning
In a flooded evaporator refrigerator, an accumulator at suction of compressor is used to

Superheat the vapour
Collect liquid refrigerant and prevent it from going to compressor
Detect liquid in vapour
Collect vapours

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Refrigeration and Air Conditioning
The heat rejection factor (HRF) is given by

1 - (1/C.O.P)
1 - C.O.P.
1 + (1/C.O.P)
1 + C.O.P

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MORE MCQ ON Refrigeration and Air Conditioning

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