During sensible cooling of air, specific humidity

Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

A

Molal

B

Relative

C

Percentage

D

None of these

During sensible cooling of air, its wet bulb temperature

A

Decreases but dew point remains constant

B

Increases but dew point remains constant

C

Increases & the dew point decreases

D

Decreases & the dew point increases

The wet bulb temperature during sensible cooling of air

A

Remains constant

B

Increases

C

Decreases

D

None of these

The percentage humidity is less than the relative humidity only at __________ percent humidity.

A

Zero

B

Hundred

C

Both zero and hundred

D

None of these

In case of sensible cooling of air, the coil efficiency is given by

A

B.P.F. - 1

B

1 - B.P.F.

C

$$\frac{1}{{{\text{B}}{\text{.P}}{\text{.F}}{\text{.}}}}$$

D

1 + B.P.F.

During sensible cooling,

A

Relative humidity remains constant

B

Wet bulb temperature increases

C

Specific humidity increases

D

Partial pressure of vapour remains constant

Which of the following remains constant during sensible cooling process ?

A

Specific humidity

B

Partial pressure of vapour

C

Both A & B

D

Neither A nor B

During sensible cooling process

A

Relative humidity decreases

B

Relative humidity increases

C

Wet bulb temperature decreases

D

Both B and C

The specific humidity during cooling and dehumidification

A

Remains constant

B

Increases

C

Decreases

D

None of these

The humidity ratio or specific humidity is the mass of water vapour present in

A

1 m³ of wet air

B

1 m³ of dry air

C

1 kg of wet air

D

1 kg of dry air

During sensible cooling of air, specific humidity

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