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.

Excessive liquid gradient on a tray may result in the______________________?
A Maldistribution of gas
B Back trapping
C Gas blowing beneath cap skit
D All A., B. and C.
Correct Answer: All A., B. and C.
The ideal size of round bubble caps to be used in industrial distillation column having a diameter of 3-6 metres is ________________ cms?
A 5
B 15
C 7.5
D 50
Correct Answer: 5
In packed towers provided with saddle packing, liquid redistributors are positioned at every _______________ times column diameter or 6 metres whichever is less?
A 2-3
B 5-8
C 10-15
D 20-25
Correct Answer: 5-8
Nominal size of a pipe is an indication of its _______________ diameter?
A Inner
B Outer
C Approximate
D None of these
Correct Answer: Approximate
Vapor velocity in a distillation column for non-foaming mixture is in the range of ______________ times the flooding velocity?
A 0.1 to 0.3
B 0.6 to 0.7
C 0.85 to 0.95
D 1.5 to 2
Correct Answer: 0.6 to 0.7
The diameter of a propeller agitator used in agitation tank ranges from ____________ percent of the tank diameter and its peripheral speed is normally 300 to 500 metres/minute ?
A 5 to 10
B 15 to 30
C 40 to 50
D 55 to 75
Correct Answer: 15 to 30
In shell and tube heat exchangers, straight tie rods are used to_________________?
A Hold baffle in space
B Fix the tubes in position
C Account for thermal strain
D None of these
Correct Answer: Hold baffle in space
Normally, the plate thickness of the bottoms and roofs of vertically cylindrical storage vessels as compared to that of the cylindrical shell is____________?
A More
B Less
C Same
D More or less depending upon the pressure & temperature inside the vessel and the nature of
Correct Answer: Less
Saddle supports are used for supporting _____________ vessels?
A Horizontal cylindrical
B Tall vertical
C Thick walled vertical
D Thick spherical
Correct Answer: Horizontal cylindrical
Which of the following factors determine the amount of entrainment in a distillation column ?
A Plate spacing
B Depth of liquid above the bubble cap slots
C Vapour velocity in the volume between the plates
D All A., B. and C.
Correct Answer: All A., B. and C.