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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 wall thickness for a large high pressure pipeline is determined by the consideration of the____________________?
A Axial tensile stress in the pipe
B Forces exerted by static and dynamic action at bends
C Circumferential pipe-wall tension
D Temperature stresses
Correct Answer: Circumferential pipe-wall tension
The normal range of velocity of steam in pipes is _________________________ m/sec?
A 0.1-0.5
B 1-5
C 10-20
D 80-100
Correct Answer: 80-100
Generally, no corrosion allowance in wall thickness of a part is required, if the thickness is more than ______________ mm?
A 10
B 20
C 30
D 5
Correct Answer: 30
Longitudinal stress induced in a thin walled cylindrical storage vessel is __________________?
A pD/2t
B pD/4t
C pD/3t
D pD/6t
Correct Answer: pD/4t
In the design of a bag filter, the gas temperature is an important consideration, as it affects the___________________?
A Gas density
B Gas viscosity
C Fibre selection
D All A., B. & C.
Correct Answer: All A., B. & C.
With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the ______________________ decreases?
A Fixed charges initially
B Running cost of cooling water for condenser
C Vapour & liquid load both
D Running cost of steam for reboiler
Correct Answer: Fixed charges initially
In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed _______________________ of the column diameter?
A 1/10-1/15th
B 1/5-1/10th
C 1/20-1/30th
D 1/2 to 1/4th
Correct Answer: 1/10-1/15th
In the design of a shell and tube heat exchanger, the corrosion allowance ____________________?
A Need not be provided for non-pressure parts like tie rods, spacers, baffles, supports etc.
B For carbon steel and cast iron pressure parts is 1.5 mm (except for tubes) and for severe
C For internal cover and tube sheet is provided on both the sides
D All A., B. & C.
Correct Answer: All A., B. & C.
____________________ strain is measured using a ‘strain rosetter’ ?
A Volumetric
B Shear
C Linear
D None of these
Correct Answer: Linear
The minimum plate spacing in most of the petroleum refinery distillation columns (of dia > 3 ft) is normally _____________ inches?
A 6
B 12
C 18
D 36
Correct Answer: 18
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