Explore topic-wise MCQs in Separation Processes.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Separation Processes knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the packed height length is HETP is 4.2ft and the number of equilibrium stages is

A. 0.76
B. 8.4
C. 12
D. 19
Answer» C. 12
Discussion
2.

What is the packed height length is HETP is 6ft and the number of equilibrium stages is

A. 0.76
B. 1.3157
C. 30
D. 19
Answer» D. 19
Discussion
3.

What is the packed height length is HETP is 3.8ft and the number of equilibrium stages is

A. 0.76
B. 1.3157
C. 12
D. 19
Answer» D. 19
Discussion
4.

What is the packed height length is HETP is 3ft and the number of equilibrium stages is

A. 0.75
B. 1.33
C. 12
D. 16
Answer» D. 16
Discussion
5.

What is the overall height of gas transfer unit if the volume is 489m 3 and the overall gas phase coefficient is 1.2 and the inside cross sectional area is 22m 2 .

A. 12m
B. 13.6m
C. 18.5m
D. 19.2m
Answer» D. 19.2m
Discussion
6.

WHAT_IS_THE_PACKED_HEIGHT_LENGTH_IS_HETP_IS_3FT_AND_THE_NUMBER_OF_EQUILIBRIUM_STAGES_IS?$

A. 0.75
B. 1.33
C. 12
D. 16
Answer» D. 16
Discussion
7.

What is the packed height length is HETP is 6ft and the number of equilibrium stages is$

A. 0.76
B. 1.3157
C. 30
D. 19
Answer» D. 19
Discussion
8.

What_is_the_packed_height_length_is_HETP_is_3.8ft_and_the_number_of_equilibrium_stages_is$

A. 0.76
B. 1.3157
C. 12
D. 19
Answer» D. 19
Discussion
9.

What_is_the_packed_height_length_is_HETP_is_4.2ft_and_the_number_of_equilibrium_stages_is

A. 0.76
B. 8.4
C. 12
D. 19
Answer» C. 12
Discussion
10.

What is the overall height of gas transfer unit if the volume is 780m 3 and the overall gas phase coefficient is 4.2 and the inside cross sectional area is 45m 2 .

A. 4.1m
B. 7.2m
C. 10.4m
D. 19.2m
Answer» B. 7.2m
Discussion
11.

What is the overall height of gas transfer unit if the volume is 1000m 3 and the overall gas phase coefficient is 2.6 and the inside cross sectional area is 20m 2 .

A. 12m
B. 13.6m
C. 18.9m
D. 19.2m
Answer» E.
Discussion
12.

Which of the following is the correct representation of overall mass transfer coefficient?

A. 1/K<sub>y</sub> a = 1/k<sub>y</sub> a +K/K<sub>x</sub> a
B. 1/K<sub>y</sub> a = 1/k<sub>y</sub> a +K/K<sub>y</sub> a
C. 1/K<sub>y</sub> a = 1/k<sub>y</sub> a +1/KK<sub>x</sub> a
D. K<sub>y</sub> a = 1/k<sub>y</sub> a +K/K<sub>x</sub> a
Answer» B. 1/K<sub>y</sub> a = 1/k<sub>y</sub> a +K/K<sub>y</sub> a
Discussion
13.

Which of the following is the correct illustration of rate of mass transfer?

A. r= k<sub>y</sub> a(y-y 1 ) =k<sub>x</sub> a(x-x 1 )
B. r= k<sub>y</sub> a(y 1 -y) =k<sub>x</sub> a(x 1 -x)
C. r= k<sub>y</sub> a(y-y 1 ) =k<sub>x</sub> a(x 1 -x)
D. r= a(y-y 1 ) =a(x 1 -x)
Answer» D. r= a(y-y 1 ) =a(x 1 -x)
Discussion
14.

At the interface of liquid and vapor, which interface exists?

A. Chemical
B. Physical
C. Thermal
D. No equilibrium exists
Answer» C. Thermal
Discussion
15.

What is the formula for HETP or HETS?

A. HETP = l<sub> T</sub> *N <sub>T</sub>
B. HETP = l <sub>T</sub>-N <sub>T</sub>
C. HETP = l <sub>T</sub> /N<sub>T</sub>
D. HETP = l<sub>T</sub>+N<sub>T</sub>
Answer» D. HETP = l<sub>T</sub>+N<sub>T</sub>
Discussion
16.

Packed columns are better analyzed by:

A. Mass transfer coefficients
B. Equilibrium stage methods
C. Graphical methods
D. Algebraical methods
Answer» B. Equilibrium stage methods
Discussion