Distillation Design Questions and Answers – Problems When Setting Simulation Input

This set of Distillation Design MCQs focuses on “Problems When Setting Simulation Input”.

1. Feed should be located at?
a) Far from optimum
b) Below the optimum
c) Away from optimum
d) At optimum
View Answer

Answer: d
Explanation: Feed stage location are anywhere according to pinch point where the equilibrium and striping line meets.

2. Reflux ratio should be?
a) Minimum
b) Maximum
c) Optimum
d) Can’t specified
View Answer

Answer: a
Explanation: Reflux ratio should be Minimum, as the reflux ratio decrease the ease of separation gets increases as they are inversely proportional.

3. Boil Up ratio should be?
a) Minimum
b) Maximum
c) Optimum
d) Can’t specified
View Answer

Answer: b
Explanation: Boil Up ratio should be Maximum, as the boil up ratio increases the difficulty of separation gets increases as they are directly proportional.
advertisement
advertisement

4. Sneaking up is a
a) Homologues Method
b) Homotomy Method
c) Euler’s Method
d) NR Method
View Answer

Answer: b
Explanation: Sneaking up is a part of Homotomy Method. Sneak is used in the plotting of F(x)
And G(x) curves which does not involve Euler’s method.

5. Degree of freedom increases, as
a) Reflux increases
b) Purity decreases
C) Purity increases
D) Reflux decreases
View Answer

Answer: c
Explanation: Degree of freedom increases as Purity increases, as they are ditrectly proportional also this can be related using phase rule F =C –P+2.

6. Extreme purity is confessed to be?
a) 90.0%
b) 99.8%
c) 99.1%
d) 99.9%
View Answer

Answer: b
Explanation: Extreme purity is confessed to be 99.8%, this has to be very précised even a point 0.01% error cannot be tolerated for the purity.

7. Energy input and internal flow affect each other.
a) True
b) False
View Answer

Answer: a
Explanation: Input and internal flow always affect each other, the input feed can certainly vary with varying heat and mass input.
advertisement

8. The end of an equilibrium curve is called as
a) Critical point
b) Triple point
c) End point
d) Single point
View Answer

Answer: a
Explanation: A critical point is the end point of a phase equilibrium curve, while the point where all three phases of water coexist is called as triple point and final stages of any curve are called as end point.

9. In the below diagram, A Curve represents?
A curve representing tray cost & is nonlinear & exponential relation with reflux
a) Final cost
b) Operating cost
c) Feed cost
d) Tray cost
View Answer

Answer: d
Explanation: It represents the Total cost, the tray cost is a nonlinear and exponential relation with reflux and cost outcomes.
advertisement

10. In the below diagram, B Curve represents?
Diagram represents Operating cost which is linear & exponential relation
a) Final cost
b) Operating cost
c) Feed cost
d) Tray cost
View Answer

Answer: b
Explanation: It represents the Operating cost, the operating cost is a linear and exponential relation with reflux and cost outcomes.

Sanfoundry Global Education & Learning Series – Distillation Design.
To practice MCQs on all areas of Distillation Design, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

advertisement
advertisement
Subscribe to our Newsletters (Subject-wise). Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Join our social networks below and stay updated with latest contests, videos, internships and jobs!

Youtube | Telegram | LinkedIn | Instagram | Facebook | Twitter | Pinterest
Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

Subscribe to his free Masterclasses at Youtube & discussions at Telegram SanfoundryClasses.