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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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.

A minimum clearance of about _______________ mm is maintained between the distillation column wall and the bubble cap?

A 19

B 38

C 67

D 95

Review Detailed Answer

Correct Answer: 38

Seamless pipe is made________________?

A From rolled strips formed into cylinders and seam-welded

B By extrusion & casting into static and centrifugal molds

C By forging a solid round, piercing it by simultaneously rotating & forcing it over a piercer

D Both B. and C.

Review Detailed Answer

Correct Answer: Both B. and C.

For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is_________________?

A d1/(d1 + d2)

B d2/(d1 + d2)

C (d1 + d2)/d1

D (d1 + d2)/d2

Review Detailed Answer

Correct Answer: d1/(d1 + d2)

Optimum economic pipe diameter for fluid flow is determined by the____________________?

A Viscosity of the fluid

B Density of the fluid

C Total cost considerations (pumping cost plus fixed cost of the pipe)

D None of these

Review Detailed Answer

Correct Answer: Total cost considerations (pumping cost plus fixed cost of the pipe)

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

Review Detailed Answer

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

Review Detailed Answer

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

Review Detailed Answer

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

Review Detailed Answer

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

Review Detailed Answer

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

Review Detailed Answer

Correct Answer: Irrespective of the shape of the vessel

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

A minimum clearance of about _______________ mm is maintained between the distillation column wall and the bubble cap?

Seamless pipe is made________________?

For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is_________________?

Optimum economic pipe diameter for fluid flow is determined by the____________________?

The ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is____________________?

Souders Brown equation given by, U = Kv √(ρl – ρv)/ρv, is used for the calculation of the ______________ in a continuous distillation column?

Pressure differential maintained across a continuous rotary vacuum filter is in the range of _______________ mm Hg column?

The wall thickness of thin cylindrical shell with hemispherical ends is ______________ that of the spherical ends?

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____________________?