Learn Mass Transfer MCQ Questions with answers and solutions.

A

Admin • 833.24K Points
Coach

Q. At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower.

(A) Is greater than
(B) Is lower than
(C) Is same as
(D) Cannot be predicted as data are insufficient

A

Admin • 833.24K Points
Coach

Q. During dehumidification of unsaturated air wet bulb temperature & partial pressure of vapor are not constant. However, during evaporative cooling process with recirculated water supply, the __________ remains constant.

(A) Wet bulb temperature
(B) Partial pressure of water vapor
(C) Relative humidity
(D) None of these

A

Admin • 833.24K Points
Coach

Q. Wet bulb and dry bulb temperatures becomes identical at __________ percent saturation curve.

(A) 100
(B) 50
(C) 78
(D) None of these

A

Admin • 833.24K Points
Coach

Q. __________ is the separation technique used for desalination of sea water.

(A) Thermal diffusion
(B) Reverse osmosis
(C) Adsorption
(D) Absorption

A

Admin • 833.24K Points
Coach

Q. The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an __________ law.

(A) Exponential
(B) Parabolic
(C) Linear
(D) Cubic

A

Admin • 833.24K Points
Coach

Q. Out of two equilibrium curves, first one lies above the diagonal and the second lies below the diagonal in the x-y plot. It means that separation by distillation is

(A) Not possible in the second case unless vacuum is applied
(B) Not possible in the second case unless high pressure is applied
(C) More readily done in the second case compared to first one
(D) None of these

A

Admin • 833.24K Points
Coach

Q. According to Chilton-Colburn analogy for mass transfer, NSt.NSc 2/3 is equal to

(A) f
(B) f/2
(C) 2f
(D) 1/f

A

Admin • 833.24K Points
Coach

Q. Very tall packed towers are divided into series of beds to

(A) Reduce the overall pressure drop
(B) Avoid channelling
(C) Reduce liquid hold-up
(D) Avoid flooding

A

Admin • 833.24K Points
Coach

Q. If „f’ is defined as above, then which of the following applies to a feed at dew point?

(A) f = 1
(B) f < 1
(C) f > 1
(D) 0 < f < 1

A

Admin • 833.24K Points
Coach

Q. Separation of the isotopes of helium for scientific investigations is done by

(A) Reverse osmosis
(B) Thermal diffusion
(C) Leaching
(D) Solvent extraction

Mass Transfer MCQs with answers Page - 22

Q. At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower.

Q. During dehumidification of unsaturated air wet bulb temperature & partial pressure of vapor are not constant. However, during evaporative cooling process with recirculated water supply, the __________ remains constant.

Q. Wet bulb and dry bulb temperatures becomes identical at __________ percent saturation curve.

Q. __________ is the separation technique used for desalination of sea water.

Q. The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an __________ law.

Q. Out of two equilibrium curves, first one lies above the diagonal and the second lies below the diagonal in the x-y plot. It means that separation by distillation is

Q. According to Chilton-Colburn analogy for mass transfer, NSt.NSc 2/3 is equal to

Q. Very tall packed towers are divided into series of beds to

Q. If „f’ is defined as above, then which of the following applies to a feed at dew point?

Q. Separation of the isotopes of helium for scientific investigations is done by

Add MCQ in this Category

Browse Categories