Chemical Engineering - Mechanical Operations

6.
Pick out the material having minimum Rittinger's number.
Calcite
Pyrite
Quartz
Galena
Answer: Option
Explanation:
No answer description is available. Let's discuss.

7.
__________ mills are termed as impactors.
Hammer
Cage
Rolling-compression
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
In case of a revolving mill, wet grinding compared to dry grinding
requires more energy.
has less capacity.
complicates handling & classification of the product.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
To get a fine talc powder from its granules, the equipment used is
roller crusher
ball mill
jaw crusher
gyratory crusher
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is
2250
1125
460
230
Answer: Option
Explanation:
No answer description is available. Let's discuss.