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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
One tonne of refrigeration (1TR) means that the heat removing capacity is

21 kJ/min
420 kJ/min
210 kJ/min
620 kJ/min

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Refrigeration and Air Conditioning
One ton refrigeration corresponds to

50 kcal/ min
50 kcal/ hr
80 kcal/ hr
80 kcal/ min

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

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

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Refrigeration and Air Conditioning
The boiling point of ________ is 10.5°C.

R-12
Sulphur dioxide
Carbon dioxide
Ammonia

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Refrigeration and Air Conditioning
Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of

1: 9
1: 1
9: 1
1: 3

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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

Sulphur dioxide
Lithium bromide
Carbon dioxide
R-12

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MORE MCQ ON Refrigeration and Air Conditioning

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