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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

Short distance transportation of grain, gravel, sand, ash, asphalt etc. is done by using a ______________ conveyor?

A Flight

B Slat or drag

C Ribbon

D Screw

Review Detailed Answer

Correct Answer: Screw

For a turbine agitated and baffled tank, operating at low Reynold’s number (based on impeller diameter), the power number (Np) varies with NRe as_________________?

A Np ∝ NRe

B Np ∝ √NRe

C Np → constant

D Np ∝ 1/NRe

Review Detailed Answer

Correct Answer: Np ∝ 1/NRe

The capacity of a classifier in ‘tons of solid/hr’ is given by (where, A = cross-sectional area in m2, V = rising velocity of fluid in m/sec, S = percentage of solids in the suspension by volume, ρ = density of solids in kg/m3)_________________?

A 3.6 AVS.ρ

B 3.6 A.V.ρ

C 3.6 A.S. ρ

D 3.6 AVS/ρ

Review Detailed Answer

Correct Answer: 3.6 AVS.ρ

Out of the following size reduction equipments, the maximum feed size can be accepted by the__________________?

A Tube mill

B Ball mill

C Jaw crusher

D Jet pulveriser

Review Detailed Answer

Correct Answer: Jaw crusher

During size reduction by a jaw crusher, the energy consumed decreases with the__________________?

A Decreasing size of product at constant size of feed

B Decreasing machine capacity

C Increasing size of feed at constant reduction ratio

D None of these

Review Detailed Answer

Correct Answer: Increasing size of feed at constant reduction ratio

Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of__________________?

A Bronze

B Stainless steel

C Flint or porcelain

D Concrete

Review Detailed Answer

Correct Answer: Flint or porcelain

The mechanism of size reduction by a hammer mill is by impact and attrition between the________________?

A Grinding element & the housing

B Feed particles

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. and B.

Solid particles separation based on the difference in their flow velocities through fluids is termed as the__________________?

A Clarification

B Classification

C Elutriation

D Sedimentation

Review Detailed Answer

Correct Answer: Classification

Size reduction mechanism used in Jaw crushers is__________________?

A Attrition

B Compression

C Cutting

D Impact

Review Detailed Answer

Correct Answer: Compression

Wet sieving is employed, when the product contains ________________ materials?

A Abrasive

B Large quantity of very fine

C Coarse

D Non-sticky

Review Detailed Answer

Correct Answer: Large quantity of very fine

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Short distance transportation of grain, gravel, sand, ash, asphalt etc. is done by using a ______________ conveyor?

For a turbine agitated and baffled tank, operating at low Reynold’s number (based on impeller diameter), the power number (Np) varies with NRe as_________________?

The capacity of a classifier in ‘tons of solid/hr’ is given by (where, A = cross-sectional area in m2, V = rising velocity of fluid in m/sec, S = percentage of solids in the suspension by volume, ρ = density of solids in kg/m3)_________________?

Out of the following size reduction equipments, the maximum feed size can be accepted by the__________________?

During size reduction by a jaw crusher, the energy consumed decreases with the__________________?

Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of__________________?

The mechanism of size reduction by a hammer mill is by impact and attrition between the________________?

Solid particles separation based on the difference in their flow velocities through fluids is termed as the__________________?

Size reduction mechanism used in Jaw crushers is__________________?

Wet sieving is employed, when the product contains ________________ materials?