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Chemical Engineering - Mechanical Operations

Exercise : Mechanical Operations - Section 6
46.
Wheat is ground into flour in a
hammer crusher
roller crusher
impact mill
fluid energy mill
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Gravity stamp mill is meant for the __________ crushing.
primary
intermediate
fine
ultrafine
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the
density separation.
differential wettability.
size.
volatile matter content.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Toothed roll crushers achieve size reduction by
tearing (shear) and compression.
impact and attrition.
both (a) & (b).
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
Pick out the wrong statement:
Magnetic separation method can be employed to treat both dry & wet ores.
Reduction ratio in crushing operation is defined as the ratio of minimum feed size to the maximum product size.
Gyratory crusher is used for coarse crushing.
Screens are of stationary, moving and vibratory types.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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