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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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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.

All Topics  9594

Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin’s formula as___________________?
A d = 1.1 t
B d = 1.6 √t
C d = 1.5 t
D d = 3 √t
Correct Answer: d = 1.6 √t
The thermal stress in a metallic bar does not depend upon the_____________________?
A Changes in temperature
B Cross-sectional area
C Both A. and B.
D Neither A. nor B.
Correct Answer: Cross-sectional area
A perforated plate has holes of diameter dn arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by_______________?
A (ph – dh)/ph
B (ph – dh . dt/2)/ph
C (ph – dt)/ph
D (ph – dh)/dh
Correct Answer: (ph – dt)/ph
The ratio of linear stress to linear strain is termed as the ____________________?
A Modulus of elasticity
B Modulus of rigidity
C Bulk modulus
D None of these
Correct Answer: Modulus of elasticity
Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or ______________ times the column diameter, whichever is lower?
A 2.5-3.0
B 5-7.5
C 10-12.5
D 15-20
Correct Answer: 2.5-3.0
Accidents in chemical plants are mostly due to___________________?
A Inadequate equipment design
B Faulty operating procedures
C Improper layout of the equipments
D Failure of equipments
Correct Answer: Faulty operating procedures
The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area ‘A’ is given by (where, P = perimeter of the channel in contact with the fluid) ?
A 4 A/P
B A/P
C 4 P/A
D √A
Correct Answer: 4 A/P
The buckling tendency of compression members is always in the direction of the _____________________?
A Least radius of gyration
B Axis of the load
C Perpendicular to the axis of the load
D None of these
Correct Answer: Least radius of gyration
____________ is the determining factor for the number of bubble caps to be used per tray?
A Permissible slot velocity
B Tray diameter
C Liquid load
D Vapor load
Correct Answer: Permissible slot velocity
Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger ?
A 75% cut segmental baffle
B 25% cut segmental baffle
C Orifice baffle
D Disk and doughnut baffle
Correct Answer: 25% cut segmental baffle
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