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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 shell side pressure drop in a shell and tube heat exchanger is maximum for _______________ baffle?
A Disk and ring
B Segmental
C Orifice
D Independent of the type of
Correct Answer: Orifice
Width and depth of grooves in the tube sheet holes normally are _______________ inch respectively?
A 1/8 and 1/64
B 1/64 and 1/8
C 1/2 and 8
D 1/2 and 5
Correct Answer: 1/8 and 1/64
Maximum size of the raschig rings used in a packed tower is about _______________ of the column diameter?
A 1/10th
B 1/20th
C 1/30th
D 1/50th
Correct Answer: 1/30th
In the case of a shell and tube heat exchanger, the logarithmic mean temperature difference ______________________?
A Is always less than arithmetic average value
B Is always more than arithmetic mean value and the geometric mean value
C Is always less than arithmetic mean value, but more than geometric mean value
D May be either more or less than geometric mean and arithmetic mean value depending upon
Correct Answer: Is always less than arithmetic average value
A pipe is generally made of circular cross-section, because a circular cross-section has the____________________?
A Higher structural strength
B Lowest surface area requirement for a given volume
C Both A. & B.
D None of these
Correct Answer: Both A. & B.
For a given design of bubble cap, the number of bubble caps to be used per tray is set by the _________________?
A Allowable gas velocity through the slots
B Plate spacing
C Diameter of the column
D All A., B. and C.
Correct Answer: Allowable gas velocity through the slots
The practical representative values of HETP for a number of commercial operations lies within a range of ______________ metre?
A 0.1-0.2
B 0.2-0.5
C 0.4-0.9
D 1.2-1.5
Correct Answer: 0.4-0.9
The minimum tray spacing in distillation column of diameter less than 3 ft is normally _____________ inches?
A 6
B 18
C 24
D 34
Correct Answer: 6
For a cylindrical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness ?
A Hemispherical
B Ellipsoidal (2 : 1)
C Conical
D Flat plate
Correct Answer: Ellipsoidal (2 : 1)
In a distillation column, minimum clearance to be maintained between the overflow weir and the last row of the bubble caps is ______________ cms?
A 2.5
B 7.5
C 15
D 20
Correct Answer: 7.5
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