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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.

In a multiple effect evaporator system having ‘n’ effects, the amount of water evaporated per unit surface area in approximately equal to _____________ times that in a single effect?

A nth

B (1/n)th

C 0.5 nth

D 1.5 nth

Review Detailed Answer

Correct Answer: (1/n)th

Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally ____________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8″)?

A Half

B Three fourth

C Equal to

D 1.5 times

Review Detailed Answer

Correct Answer: Equal to

Maximum plate efficiency is achieved in case of ______________ flow?

A Split

B Cross

C Cascade

D Reverse

Review Detailed Answer

Correct Answer: Cross

Le/D) for 90° elbow (medium radius) and 90°square elbow would be respectively around___________________?

A 25 and 60

B 3 and 5

C 100 and 250

D 250 and 600

Review Detailed Answer

Correct Answer: 25 and 60

Diameter of the sieve tray column is determined by the_________________?

A Lower limit of vapour velocity

B Upper limit of the vapour velocity

C Hole diameter of the sieve tray

D Height of the plate spacing

Review Detailed Answer

Correct Answer: Upper limit of the vapour velocity

Maximum acceptable total liquid gradient over a tray is about _______________ mm?

A 5.5

B 12.5

C 30.5

D 45.5

Review Detailed Answer

Correct Answer: 12.5

A minimum clearance of about _______________ mm is maintained between the distillation column wall and the bubble cap?

A 19

B 38

C 67

D 95

Review Detailed Answer

Correct Answer: 38

Seamless pipe is made________________?

A From rolled strips formed into cylinders and seam-welded

B By extrusion & casting into static and centrifugal molds

C By forging a solid round, piercing it by simultaneously rotating & forcing it over a piercer

D Both B. and C.

Review Detailed Answer

Correct Answer: Both B. and C.

For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is_________________?

A d1/(d1 + d2)

B d2/(d1 + d2)

C (d1 + d2)/d1

D (d1 + d2)/d2

Review Detailed Answer

Correct Answer: d1/(d1 + d2)

Optimum economic pipe diameter for fluid flow is determined by the____________________?

A Viscosity of the fluid

B Density of the fluid

C Total cost considerations (pumping cost plus fixed cost of the pipe)

D None of these

Review Detailed Answer

Correct Answer: Total cost considerations (pumping cost plus fixed cost of the pipe)

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

In a multiple effect evaporator system having ‘n’ effects, the amount of water evaporated per unit surface area in approximately equal to _____________ times that in a single effect?

Maximum plate efficiency is achieved in case of ______________ flow?

Le/D) for 90° elbow (medium radius) and 90°square elbow would be respectively around___________________?

Diameter of the sieve tray column is determined by the_________________?

Maximum acceptable total liquid gradient over a tray is about _______________ mm?

A minimum clearance of about _______________ mm is maintained between the distillation column wall and the bubble cap?

Seamless pipe is made________________?

For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is_________________?

Optimum economic pipe diameter for fluid flow is determined by the____________________?