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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

The ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is____________________?
A 0.25
B 0.50
C 0.75
D 1.25
Correct Answer: 0.25
Souders Brown equation given by, U = Kv √(ρl – ρv)/ρv, is used for the calculation of the ______________ in a continuous distillation column?
A Diameter of the bubble cap column
B Diameter of the sieve plate column
C Tray pressure drop
D Residence time in the downcomer for the disengagement of entrained vapour
Correct Answer: Diameter of the bubble cap column
Pressure differential maintained across a continuous rotary vacuum filter is in the range of _______________ mm Hg column?
A 50 to 100
B 100 to 150
C 250 to 500
D 600 to 700
Correct Answer: 250 to 500
The wall thickness of thin cylindrical shell with hemispherical ends is ______________ that of the spherical ends?
A Equal to
B More than
C Less than
D Either B. or C.; depends on maximum permissible internal pressure
Correct Answer: More than
In a shell and tube heat exchanger, the overall heat transfer co-efficient is proportional to the tube side (volumetric flow rate)0.8. This is valid, only when the ratio of the tube side film resistance to the total resistance is almost equal to____________________?
A ∞
B 1
C 20.8
D 2
Correct Answer: 1
A certain pressure vessel manufacturer avoids doing reinforcements calculations for openings by always providing a reinforcing pad extending upto double the diameter of the opening and of the same material and thickness as that of the shell wall. If area compensation is accepted as a code guideline, his approach leads to safe design____________________?
A Only if the opening is on spherical vessel
B Only if the opening is on a vertical cylindrical vessel
C Only if the opening is on a horizontal cylindrical vessel
D Irrespective of the shape of the vessel
Correct Answer: Irrespective of the shape of the vessel
(Le/D) for a Tee (used as elbow, entering branch) would be ____________________?
A Less than that for Tee (used as elbow, entering run)
B More than that for Tee (used as elbow, entering run)
C Around 90
D Both B. and C.
Correct Answer: Both B. and C.
Mc Cable Thiele method used for finding theoretical stages in a distillation column assumes that the_____________________?
A Sensible heat differences are small, because the temperature changes from tray to tray is small
B Trouton’s rule is applicable
C Liquid/vapor loading across the column remains constant
D All A., B. and C.
Correct Answer: All A., B. and C.
Typical static submergence for bubble cap plate column operating at atmospheric pressure may be around _________________?
A 2.5″
B 0.5″
C 5″
D 50% of the plate spacing
Correct Answer: 0.5″
Which of the following types of reactors is the safest from operation point of view ?
A A vapor phase reactor
B Pot type reactor
C A liquid phase reactor
D A liquid phase catalytic reactor
Correct Answer: A vapor phase reactor
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