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Refrigeration and Air Conditioning

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

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

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Refrigeration and Air Conditioning
The cooling system used for supersonic aircrafts and rockets is

Bootstrap air cooling system
Simple air cooling system
Reduced ambient air cooling system
Regenerative air cooling system

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Refrigeration and Air Conditioning
Aqua ammonia is used as refrigerant in the following type of refrigeration system

Indirect
Direct
Absorption
Compression

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Refrigeration and Air Conditioning
A standard ice point temperature corresponds to the temperature of

Solid and dry ice
Water at 0°C
Mixture of ice and water under equilibrium conditions
Ice at 4°C

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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
20
50

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Refrigeration and Air Conditioning
Short horizontal lines on pressure-enthalpy chart show

Constant pressure lines
Constant total heat lines
Constant entropy lines
Constant temperature lines

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MORE MCQ ON Refrigeration and Air Conditioning

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