Applied Thermodynamics (3161910) MCQs

MCQs of Psychrometry

Showing 41 to 50 out of 60 Questions
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41.
During heating and humidification, the final relative humidity of the air
(a) can be lower or higher than that of the entering air
(b) is lower than that of the entering air
(c) is higher than that of the entering air
(d) none of the above
Answer:

Option (a)

42.
The psychrometric process used in air cooler is
(a) cooling and dehumidification
(b) heating and humidification
(c) cooling and humidification
(d) heating and dehumidification
Answer:

Option (c)

43.
The mixture of a number of gases by volume in the air is known as
(a) dry air
(b) moist air
(c) saturated air
(d) none of the above
Answer:

Option (a)

44.
The temperature at which moisture present in the air is begins to condense is known as
(a) dry bulb temperature
(b) wet bulb temperature
(c) dew point temperature
(d) wet bulb depression
Answer:

Option (c)

45.
The difference between dry bulb temperature and wet bulb temperature is called
(a) dry bulb depression
(b) wet bulb depression
(c) dew point depression
(d) degree of saturation
Answer:

Option (b)

46.
The horizontal and non-uniformly spaced lines on a psychrometric chart indicates
(a) dry bulb temperature
(b) wet bulb temperature
(c) dew point temperature
(d) specific humidity
Answer:

Option (c)

47.
The inclined straight and non-uniformly spaced lines on a psychrometric chart indicates
(a) dry bulb temperature
(b) wet bulb temperature
(c) dew point temperature
(d) specific humidity
Answer:

Option (b)

48.
The relative humidity lines on a psychrometric chart are
(a) vertical and uniformly spaced
(b) horizontal and uniformly spaced
(c) horizontal and non-uniformly spaced
(d) curved lines
Answer:

Option (d)

49.
The scale given in mm of Hg on the left side of the psychrometric chart is called
(a) enthalpy scale
(b) sensible heat factor scale
(c) vapour pressure scale
(d) none of the above
Answer:

Option (c)

50.
The sensible cooling process on the psychrometric chart is shown by
(a) horizontal line
(b) vertical line
(c) inclined line
(d) curved
Answer:

Option (a)

Showing 41 to 50 out of 60 Questions
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