Engineering :: Refrigeration and Air conditioning

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201.

The rate of evaporation of water will be low when

A.	Reactive humidity is zero	B.	Relative humidity is less than 50%
C.	Relative humidity is high	D.	Rate of evaporation does not depend on relative humidity

202.

In case of wet bulb depression is zero, it can be concluded that

A.	Rain is likely to occur	B.	Storm is likely to hit the place
C.	Relative humidity is zero	D.	Relative humidity is 100%
E.	None of the above

203.

The ratio of water vapour to the mass of dry air in a given mixture is known as

204.

The ratio of specific humidity of moist air to the specific immidity of the saturated air at the same temperature, is known as

A.	Absolute humidity	B.	Degree of saturation and degree of reaction
C.	Relative humidity	D.	Any of the above
E.	None of the above

205.

The leakage in a refrigeration system using freon is detected by

206.

The colour of the flame of halide torch in case of leakage of freon refrigerant, will change to

207.

The drift loss in cooling towers is around

208.

Cooling towers are used for cooling water

A.	To be injected in circulating air	B.	To be used for humidification
C.	To be used for filtration of air	D.	To be used for cooling the compressor
E.	To be used for cooling the building

209.

In cooling towers the heat is dissipated mainly by

210.

The performance of an evaporative condenser largely depends on

A.	Dry bulb temperature	B.	Wet bulb temperature
C.	Hot water temperature	D.	Ambient temperature
E.	Air conditioned room temperature