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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

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.
For pipe flows, head is proportional to ______________ at constant capacity (where D = pipe diameter) ?
A 1/D
B 1/D2
C 1/D5
D D2
Correct Answer: 1/D
Which of the following is used to set the diameter of the distillation column ?
A Number of theoretical plates
B Static submergence
C Allowable vapour velocity
D Length of straight rectangular weir on cross-flow tray
Correct Answer: Allowable vapour velocity
The dust collection efficiency of electrostatic precipitator increases with increase in the_________________?
A Gas flow rate
B Electrode area
C Both A. & B.
D Neither A. nor B.
Correct Answer: Electrode area
A cylindrical storage tank can have a self supported conical roof ?
A If its diameter is less than 15-20metres
B If its diameter is more than 50 meters
C If the thickness of the roof is more than that of the cylindrical shell
D Irrespective of its diameter
Correct Answer: If its diameter is less than 15-20metres
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