Humidity

Question 1

The ratio in % between the amount of water vapour present in the air to the amount of water vapour that it can hold at the same temperature is

Answer 1

(a) Humidity
》(b) Relative humidity
(c) Dew point

Question 2

Free air temperature, Wet bulb temperature and Dew point temperature are equal when

Answer 2

(a) Air temperature is °C
》(b) Relative humidity is 100%
(c) Air temperature is not below 0°C

Question 3

On a rainy day compared to sunny day the length of runway required is

Answer 3

》(a) More
(b) Less
(c) Same

Question 4

The spread (difference) between Free air temperature and Dew point temperature is……when air is saturated

Answer 4

(a) Large
》(b) Least
(c) Same

Question 5

The saturation vapour pressure over water is……. than the ice

Answer 5

》(a) More
(b) Less
(c) Same

Question 6

As the temperature of the air increases, the amount of water vapour required to saturate it ……..

Answer 6

(a) decreases
》(b) increases
(c) remains same

Question 7

The actual amount of water vapour contained in a given volume of air at a given temperature is termed as…

Answer 7

(a) Relative Humidity
(b) Specific Humidity
》(c) Absolute Humidity

Question 8

Humidity Mixing Ratio……… when air is lifted adiabatically

Answer 8

(a) decreases
》(b) remains constant
(c) increases

Question 9

It is the lowest temperature which air would attain by evaporating water into it to saturate it.

Answer 9

》(a) Wet bulb temp
(b) Dry bulb temp
(c)Dew point

Question 10

The temperature to which air be cooled at constant pressure to become saturated, is called

Answer 10

(a) Wet bulb temperature
(b) Dry bulb temperature
》(c) Dew point
(d) Humidity