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Chemical Engineering - Mechanical Operations

Exercise : Mechanical Operations - Section 2
41.
Cement clinker is reduced to fine size by a
roll crusher
ball mill
tube mill
hammer mill
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
The crushed material received for separation is called feed or
tailing
heading
concentrate
middling
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
For spheres, volume shape factor is given by
π(=A/D2)
2π(=2A/D2)
π/6(=V/D3)
AD/V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids ( > 50000 centipoise) ?
Propeller
Helical screw
Flat blade turbine
Curved blade turbine
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
__________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals.
Separation efficiency
Selectivity index
Concentration ratio
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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