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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

At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure____________________?
A Increases
B Decreases
C Remain same
D May increase or decrease depending upon the solubility of the gas in the liquid
Correct Answer: Remain same
In case of saddle packing (e.g., berl and intralox saddles), the maximum size of the packing should not exceed ______________ of the column diameter?
A 1/5th
B 1/15th
C 1/30th
D 1/50th
Correct Answer: 1/15th
Frame thickness in the plate and frame filter press is normally in the range of ______________ inches?
A 0.25 to 4
B 0.25 to 8
C 1 to 5
D 1 to 12
Correct Answer: 0.25 to 8
In a shell and tube heat exchanger, the clearance of the tube is generally___________________?
A Not less than one-fourth of the tube diameter or 3/16″
B More than the tube diameter
C Equal to the tube diameter
D More in case of triangular pitch as compared to the square pitch tube layout
Correct Answer: Not less than one-fourth of the tube diameter or 3/16″
The length of straight rectangular weir used on cross-flow trays is generally ________________ the column diameter ?
A 0.6-0.8 times
B Equal to
C Twice
D 2 ft irrespective of (for column > 3 ft diameter)
Correct Answer: 0.6-0.8 times
Cylindrical shell thickness of rotary drier is generally _______________ mm?
A 2-3
B 18-22
C 6-8
D 12-15
Correct Answer: 6-8
The necessary wall thickness for a metallic storage vessel is a function of the ___________________?
A Ultimate tensile strength (or yield point) of the material and operating temperature
B Operating pressure and welding/joint efficiency
C Diameter of the vessel
D All A., B. and C.
Correct Answer: All A., B. and C.
In distillation columns, bubble caps are held in place over trays by ________________?
A Rivets
B A hold down bar
C Bolts
D Both B. and C.
Correct Answer: Both B. and C.
Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always_________________?
A Less than arithmetic mean value
B More than arithmetic mean value
C More than geometric mean value
D Both B. & C.
Correct Answer: Less than arithmetic mean value
The dust collection efficiency of a cyclone separator_________________?
A Decreases with increase in gas flow rate
B Is inversely proportional to the mass of the dust particle
C Is directly proportional to the radius of the dust particle path
D None of these
Correct Answer: None of these
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