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Chemical Engineering - Mechanical Operations

Exercise : Mechanical Operations - Section 5
46.
In a roll crusher, both the rolls
have the same diameter.
are rotated towards each other.
run either at the same or different speeds.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Tube mill compared to ball mill
produces finer products.
is long in comparison with its diameter.
uses smaller balls.
all (a), (b) & (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Critical speed of rotation, N (in rps - rotation per second) of a trammel is equal to (where, g = acceleration due to gravity = 9.81 m/sec2 and, r = radius of trammel, metre. )
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
For the preliminary breaking of hard rock, we use a
gyratory crusher
ball mill
tube mill
squirrel-cage disintegrator
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
Filtration operation carried out by continuous increase of the inlet pressure of slurry, is called the __________ filtration.
constant rate
varying pressure
varying rate
constant pressure
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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