Explore topic-wise MCQs in Separation Processes.

This section includes 7 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 distillation rate if feed rate is 31moles/s and mole fraction of LK in feed is 0.9, and mole fraction of LK in distillate and bottom is 0.6, 0.4?

A. 23moles/s
B. 26moles/s
C. 28moles/s
D. 31moles/s
Answer» E.
Discussion
2.

What is the distillation rate if feed rate is 9moles/s and mole fraction of LK in feed is 0.7, and mole fraction of LK in distillate and bottom is 0.5, 0.3?

A. 45moles/s
B. 16moles/s
C. 18moles/s
D. 20moles/s
Answer» D. 20moles/s
Discussion
3.

What is the distillation rate if feed rate is 20moles/s and mole fraction of LK in feed is 0.8, and mole fraction of LK in distillate and bottom is 0.5, 0.4?

A. 80moles/s
B. 12moles/s
C. 16moles/s
D. 20moles/s
Answer» B. 12moles/s
Discussion
4.

What is the formula for distillation rate according to mcCabe-thiele s method?

A. D= F(z <sub>F</sub> x <sub>B</sub> )/(x <sub>D</sub> + x <sub>B</sub> )
B. D= F(z <sub>F</sub> x <sub>B</sub>)/(x <sub>D</sub> /x <sub>B</sub> )
C. D= F(z <sub>F</sub> x <sub>D</sub> )/(x <sub>D</sub> x <sub>B</sub> )
D. D= F(z <sub>F</sub> x <sub>B</sub> )/(x <sub>D</sub> x <sub>B</sub> )
Answer» E.
Discussion
5.

For what value of 1,2 ,the separation cannot be achieved?

A. 0.8
B. 1.2
C. 1.3
D. 1.8
Answer» B. 1.2
Discussion
6.

If LK=1 and HK=2, what is the formula for 1,2 ?

A. <sub>1,2</sub> =K1/K2
B. <sub>1,2</sub> =K1*K2
C. <sub>1,2</sub> =K1-K2
D. <sub>1,2</sub> =K1+K2
Answer» B. <sub>1,2</sub> =K1*K2
Discussion
7.

What is meant by high key (HK)?

A. A feed that contains less volatile components
B. A feed that has less mass
C. A feed that has higher concentration of less molecular weight solute
D. A feed that contains more volatile components
Answer» B. A feed that has less mass
Discussion