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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Accumulators should have adequate volume to store refrigerant charge at least

0.1
0.25
0.5
0.75

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Refrigeration and Air Conditioning
Freon group of refrigerants are

Inflammable
Non-inflammable and toxic
Nontoxic and non-inflammable
Toxic

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Refrigeration and Air Conditioning
Pick up the wrong statement. A refrigerant should have

High latent heat of vaporisation
Higher critical temperature
Tow specific heat of liquid
High boiling point

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Refrigeration and Air Conditioning
During humidification process, __________ increases.

Dry bulb temperature
Relative humidity
Wet bulb temperature
Specific humidity

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Refrigeration and Air Conditioning
If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be

1.2
0.2
6
5

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Refrigeration and Air Conditioning
The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called

Relative humidity
Degree of saturation
Absolute humidity
Humidity ratio

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