Psychrometrics - MCQs with Answers

Psychrometrics - MCQs with Answers

Q1. Dry air does NOT contain

a. krypton
b. argon
c. neon
d. none of the above

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Q2. The ratio of partial pressure of water vapour in a mixture to the saturation pressure of water at the same temperature of the mixture is called as

a. humidity
b. partial humidity
c. specific humidity
d. relative humidity

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Q3.What is the specific humidity?

a. the ratio of the mass of water vapour to the mass of the total mixture of air and water vapour
b. the ratio of the mass of dry air to the mass of the total mixture of air and water vapour
c. the ratio of the mass of dry air to the mass of water vapour in a mixture of air and water vapour
d. the ratio of the mass of water vapour to the mass of dry air in a mixture of air and water vapour

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Q4. What is the relative humidity for a saturated air?

a. 0%
b. 50%
c. 100%
d. cannot say

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Q5. What is the degree of saturation?

a. the ratio of the actual relative humidity to the saturated specific humidity at the same temperature
b. the ratio of the actual specific humidity to the saturated specific humidity at the same temperature
c. the ratio of the saturated specific humidity to the actual specific humidity at the same temperature
d. none of the above

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Q6. The degree of saturation varies between

a. 1 to infinity
b. 0 to infinity
c. 0 to 1
d. none of the above

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