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Chemical Engineering - Mechanical Operations

Exercise : Mechanical Operations - Section 9
36.
Limestone is normally crushed in a
roll crusher
hammer crusher
ball mill
tube mill
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance ).
μ
1/μ
1/μ
1/μ2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Pick out the correct statement.
The capacity and the effectiveness of a screen are the same.
The capacity and the effectiveness of screen are opposing factors.
The screening surface of a 'reel' (a revolving screen used in flour mills) is made of silk bolting cloth supported by wire mesh.
both (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
The main differentiation factor between tube mill and ball mill is the
length to diameter ratio.
size of the grinding media.
final product size.
operating speed.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Introduction of slurry in a plate and frame filter press is done through a plate in each frame. The plate of this filter has a __________ surface.
plane
curved
ribbed
either (a) or (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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