Mechanical Operations MCQ Questions & Answers | Chemical Engineering

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31.
Length/diameter ratio of a ball mill is

A. 1.5

B. 1

C. < 1

D. > 1

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32.
The optimum moisture content in solids to be crushed/ground ranges from __________ percent.

A. 3 to 4

B. 8 to 10

C. 10 to 15

D. 15 to 20

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33.
Apron conveyors are used for

A. Heavy loads & short runs

B. Small loads & long runs

C. Heavy loads & long runs

D. None of these

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34.
Carbon black is pulverised in a

A. Hammer crusher

B. Ball mill

C. Roll crusher

D. Gyratory crusher

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35.
Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill.

A. Cage

B. Hammer

C. Both A & B

D. Neither A nor B

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Mechanical Operations MCQ Questions & Answers | Chemical Engineering

31. Length/diameter ratio of a ball mill is

Answer & Solution

32. The optimum moisture content in solids to be crushed/ground ranges from __________ percent.

Answer & Solution

33. Apron conveyors are used for

Answer & Solution

34. Carbon black is pulverised in a

Answer & Solution

35. Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill.

Answer & Solution

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31.
Length/diameter ratio of a ball mill is

32.
The optimum moisture content in solids to be crushed/ground ranges from __________ percent.

33.
Apron conveyors are used for

34.
Carbon black is pulverised in a

35.
Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill.