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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.

A fluid energy mill is used for __________________?

A Cutting

B Grinding

C Ultra-grinding

D Crushing

Review Detailed Answer

Correct Answer: Ultra-grinding

In a size reduction crushing operation, the feed size is 10 to 50 mm, while the product size is 2 to 10 mm. This is a case of _______________ crushing?

A Primary

B Secondary

C Fine

D Ultrafine

Review Detailed Answer

Correct Answer: Fine

Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripheral velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m3 here, V =πND where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m) ?

A 3.6 V.W.Dr.ρ

B 3.6 V.W. ρ

C 3.6 W.Dr.ρ

D 3.6 V.W.Dr/ρ

Review Detailed Answer

Correct Answer: 3.6 V.W.Dr.ρ

Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called__________________?

A Classification

B Froth floatation

C Thickening

D Clarification

Review Detailed Answer

Correct Answer: Classification

The controlling resistance in a rotary drum vacuum filter is the ________________ resistance?

A Piping

B Cake

C Filter medium

D None of these

Review Detailed Answer

Correct Answer: Cake

To get a fine talc powder from its granules, the equipment used is____________________?

A Roller crusher

B Ball mill

C Jaw crusher

D Gyratory crusher

Review Detailed Answer

Correct Answer: Ball mill

As per Taggart’s formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms) ?

A LS

B 93 LS

C 250 LS

D √(LS)

Review Detailed Answer

Correct Answer: LS

With increase in the capacity of screens, the screen effectiveness__________________?

A Remains unchanged

B Increases

C Decreases

D Decreases exponentially

Review Detailed Answer

Correct Answer: Decreases

Filtration of water in a paper mill is done by a/an _______________ filter?

A Open sand

B Plate and frame

C Vacuum leaf

D Sparkler

Review Detailed Answer

Correct Answer: Open sand

Reciprocal of sphericity is termed as the________________?

A Specific surface ratio

B Shape factor

C Sauter diameter

D Surface area per unit mass

Review Detailed Answer

Correct Answer: Shape factor

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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All Topics 9594

A fluid energy mill is used for __________________?

In a size reduction crushing operation, the feed size is 10 to 50 mm, while the product size is 2 to 10 mm. This is a case of _______________ crushing?

Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripheral velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m3 here, V =πND where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m) ?

Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called__________________?

The controlling resistance in a rotary drum vacuum filter is the ________________ resistance?

To get a fine talc powder from its granules, the equipment used is____________________?

As per Taggart’s formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms) ?

With increase in the capacity of screens, the screen effectiveness__________________?

Filtration of water in a paper mill is done by a/an _______________ filter?

Reciprocal of sphericity is termed as the________________?