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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.

Gravity stamp mill is meant for the ___________________ crushing?

A Primary

B Intermediate

C Fine

D Ultrafine

Review Detailed Answer

Correct Answer: Fine

Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the ___________________?

A Light metal powder down upto 4 mesh size

B Dry chemicals

C Heavy tonnages of rocks or gravel

D Powdered food & granular materials

Review Detailed Answer

Correct Answer: Heavy tonnages of rocks or gravel

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

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Gravity stamp mill is meant for the ___________________ crushing?

Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the ___________________?

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__________________?