This set of Separation Processes Multiple Choice Questions & Answers (MCQs) focuses on “Newton-Raphson Method”.

1. The Newton-Raphson method of finding roots of nonlinear equations falls under the category of which method?

a) Bracketing

b) Random

c) Open

d) Graphical

View Answer

Explanation: It is an open method since we have to guess the square root.

2. What is the formula of finding the square root of R from equation x2- R=0?

a) X_{i+1}= 0.5(x_{i} + R/x_{i})

b) X_{i+1}= 0.5(x_{i} + R/2)

c) X_{i}= 0.5(x_{i} + R/x_{i})

d) X_{i}+1= 0.5(x_{i} + x_{i})

View Answer

Explanation: The formula of finding the square root of R from equation x

^{2}– R=0 is X

_{i}+1= 0.5(x

_{i }+ R/x

_{i}).

3. If broth flow rate is 200kg/hr and solvent flow rate is 300kg/hr and POD is of diameter 1m and length 10m, what is the residence time?

a) 28s

b) 56s

c) 35s

d) 39s

View Answer

Explanation: t

_{tme}= pi*(D

^{2}/4)L/F+S, t

_{time}= 3.14*(1/4)10/500=56s.

4. If broth flow rate is 600kg/hr and solvent flow rate is 400kg/hr and POD is of diameter 1m and length 5m, what is the residence time?

a) 28s

b) 14s

c) 30s

d) 35s

View Answer

Explanation: t

_{tme}= pi*(D

^{2}/4)L/F+S, t

_{time}= 3.14*(1/4)5/1000=14s.

5. If broth flow rate is 200kg/hr and solvent flow rate is 300kg/hr and POD is of diameter 1m and length 15m, what is the residence time?

a) 72s

b) 76s

c) 82s

d) 85s

View Answer

Explanation: t

_{tme}= pi*(D

^{2}/4)L/F+S, t

_{time}= 3.14*(1/4)15/500=85s.

6. If broth flow rate is 200kg/hr and solvent flow rate is 300kg/hr and POD is of diameter 2m and length 5m, what is the residence time?

a) 98s

b) 111ss

c) 113s

d) 119s

View Answer

Explanation: t

_{tme}= pi*(D

^{2}/4)L/F+S, t

_{time}= 3.14*(4/4)5/500=113s.

7. If broth flow rate is 200kg/hr and solvent flow rate is 300kg/hr and POD is of diameter 1m and length 6m, what is the residence time?

a) 28s

b) 20s

c) 30s

d) 34s

View Answer

Explanation: t

_{tme}= pi*(D

^{2}/4)L/F+S, t

_{time}= 3.14*(1/4)6/500=34s.

8. If broth flow rate is 200kg/hr and solvent flow rate is 300kg/hr and POD is of diameter 1m and length 7m, what is the residence time?

a) 28s

b) 20s

c) 40s

d) 35s

View Answer

Explanation: t

_{tme}= pi*(D

^{2}/4)L/F+S, t

_{time}= 3.14*(1/4)7/500=40s.

9. If broth flow rate is 200kg/hr and solvent flow rate is 300kg/hr and POD is of diameter 3m and length 5m, what is the residence time?

a) 200s

b) 250s

c) 230s

d) 254s

View Answer

Explanation: t

_{tme}= pi*(D

^{2}/4)L/F+S, t

_{time}= 3.14*(9/4)5/500=254s.

10. If broth flow rate is 200kg/hr and solvent flow rate is 500kg/hr and POD is of diameter 1m and length 5m, what is the residence time?

a) 28s

b) 20s

c) 30s

d) 35s

View Answer

Explanation: t

_{tme}= pi*(D

^{2}/4)L/F+S, t

_{time}= 3.14*(1/4)5/700=20s.

**Sanfoundry Global Education & Learning Series – Separation Processes.**

To practice all areas of Separation Processes, __here is complete set of 1000+ Multiple Choice Questions and Answers__.