Chemical Engineering - Mechanical Operations

21.
A widely used size reduction equipment for __________ is Bradford breaker.
talc
coal
iron core
wheat
Answer: Option
Explanation:
No answer description is available. Let's discuss.

22.
Ultra centrifuges are used for the separation of __________ solid particles.
coarse
fine
colloidal
dissolved
Answer: Option
Explanation:
No answer description is available. Let's discuss.

23.
Specific surface area is the surface area of a unit __________ of materials.
weight
volume
either (a) or (b)
neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.

24.
A. __________ mill is a revolving mill divided into two or more sections by perforated partitions in which preliminary grinding takes place at one end and the finishing grinding at the discharge end.
compartment
tube
rod
pebble.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

25.
The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond's law, Rittinger's law and Kick's law) depend upon the
feed material.
type of crushing machine.
both (a) & (b).
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.