Chemical Engineering - Mechanical Operations

1. 

Sphericity of raschig ring (whose length and diameter are equal) is

A. >1
B. <1
C. 1
D. 2

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

2. 

Mixing mechanism employed in a pan mixer is by

A. mulling
B. kneading
C. dispersion
D. none of these

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

3. 

Chance process is used for the

A. cleaning of coal.
B. concentration of iron ore.
C. concentration of pyrites.
D. water treatment

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

4. 

Which of the following screens has the maximum capacity ?

A. Grizzlies
B. Trommels
C. Shaking screen
D. Vibrating screen

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

5. 

Stamp mills are generally used for crushing

A. iron ores
B. gold ores
C. talc
D. diamond

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.