Mechanical Operations MCQ Questions & Answers | Chemical Engineering Page-1 section-3

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1.
The grinding in a hammer crusher takes place due to the

A. Attrition

B. Impact

C. Both A & B

D. Neither A nor B

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2.
Reduction ratio of crushers is the

A. Ratio of feed opening to discharge opening

B. Ratio of discharge opening to feed opening

C. Determining factor for minimum dia of the feed and the product

D. None of these

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3.
Additives used for promoting the floccula-tion of particles is a/an

A. Electrolyte

B. Surface active agent

C. Both A & B

D. Neither A nor B

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4.
Separation of solid particles based on their densities is called

A. Sizing

B. Sorting

C. Clarification

D. Dispersion

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5.
The sphericity of a solid particle of cubical shape is

A. $$\pi $$

B. $${\left( {\frac{\pi }{6}} \right)^{\frac{1}{3}}}$$

C. $${\left( {\frac{\pi }{6}} \right)^{\frac{1}{2}}}$$

D. $$\frac{\pi }{3}$$

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Mechanical Operations MCQ Questions & Answers | Chemical Engineering

1. The grinding in a hammer crusher takes place due to the

Answer & Solution

2. Reduction ratio of crushers is the

Answer & Solution

3. Additives used for promoting the floccula-tion of particles is a/an

Answer & Solution

4. Separation of solid particles based on their densities is called

Answer & Solution

5. The sphericity of a solid particle of cubical shape is

Answer & Solution

Read More Section(Mechanical Operations)

1.
The grinding in a hammer crusher takes place due to the

2.
Reduction ratio of crushers is the

3.
Additives used for promoting the floccula-tion of particles is a/an

4.
Separation of solid particles based on their densities is called

5.
The sphericity of a solid particle of cubical shape is