M C Q s D r i v e

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.

In a shell and tube heat exchanger, the ‘tube pitch’ is defined as the _____________________?

A O.D. of the tube for square pitch
B Shortest distance between two adjacent tube holes
C Shortest centre to centre distance between adjacent tubes
D None of these
Correct Answer: Shortest centre to centre distance between adjacent tubes

A riveted joint does not fail by _____________________ of rivets?

A Tearing
B Shearing
C Tearing of the plate across a row
D None of these
Correct Answer: None of these

Shell side heat transfer co-efficient in case of square pitch as compared to the triangular pitch under similar condition of fluid flow and tube size is_____________?

A More
B Same
C Less
D Twice
Correct Answer: Less

Diameter of bubble caps used in high pressure columns is ______________ as compared to that used in identical vacuum columns?

A Less
B More
C Same
D Either A. or B.; no generalisation can be made
Correct Answer: More

In packed absorption tower, onset of flooding usually occurs at a pressure drop of about ______________ mm of water column per metre height of packing?

A 25-50
B 50-75
C 200-250
D 750-1000
Correct Answer: 50-75

Which of the following lengths of heat exchanger tubes are normally not used in practice ?

A 2.5 metres
B 6 metres
C 10 metres
D 0.5 metre
Correct Answer: 10 metres

The operating pressure drop range in a bag filter is about ______________ mm water gauge?

A 50-150
B 5-10
C 500-1500
D 1500-2500
Correct Answer: 50-150

The value of fouling factor depends upon the__________________?

A Characteristic of process fluid
B Velocity of process fluid containing suspended solids
C Suspended solids in the fluid
D All A., B. and C.
Correct Answer: All A., B. and C.

(Le/D) for fully open globe value may be around__________________?

A 10
B 25
C 75
D 300
Correct Answer: 300

In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer coefficient (hi) vanishes after a Reynold number of_____________?

A 1000
B 3000
C 5000
D 10000
Correct Answer: 1000