Process Equipment and Plant Design MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Process Equipment and Plant Design, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Process Equipment and Plant Design MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Process Equipment and Plant Design mcq questions that explore various aspects of Process Equipment and Plant Design problems. Each MCQ is crafted to challenge your understanding of Process Equipment and Plant Design principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Process Equipment and Plant Design MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Process Equipment and Plant Design. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Process Equipment and Plant Design knowledge to the test? Let's get started with our carefully curated MCQs!

Process Equipment and Plant Design MCQs | Page 12 of 50

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Q111.
In packed towers provided with saddle packing, liquid redistributors are positioned at every __________ times column diameter or 6 metres whichever is less.

a.

2-3

b.

5-8

c.

10-15

d.

20-25

Discuss
Answer: (b).5-8
Q112.
Optimum reflux ratio in a continuous distillation column is determined by the

a.

maximum permissible vapour velocity.

b.

flooding limit of the column.

c.

total cost consideration (fixed cost of the column plus the cooling water & steam cost).

d.

none of these.

Discuss
Answer: (c).total cost consideration (fixed cost of the column plus the cooling water & steam cost).
Q113.
Floating head heat exchangers are used for the

a.

heat transfer between corrosive fluids.

b.

cases where temperature difference between the shell and the tubes is more (>50°C).

c.

co-current heat transfer systems.

d.

counter-current heat transfer systems.

Discuss
Answer: (b).cases where temperature difference between the shell and the tubes is more (>50°C).
Q114.
The most common standard size of bubble caps used in industrial operation is

a.

1" dia cap with 0.5" dia riser.

b.

6" dia cap with 4" dia riser.

c.

8" dia cap with 1" dia riser.

d.

4" dia cap with 8" dia riser.

Discuss
Answer: (b).6" dia cap with 4" dia riser.
Q115.
Compensation against openings in process vessels for giving inlet and outlet connections, for providing sight glasses and manholes etc. is provided for strength and rigidity. The most efficient type of compensation is of __________ type.

a.

nozzle or rim

b.

flared out

c.

fluid in

d.

ring plate

Discuss
Answer: (a).nozzle or rim
Q116.
In case of a continuous distillation column, increase in reflux ratio may result in the

a.

lower fixed charges for the column.

b.

greater cost for the reboiler heat supply.

c.

greater cost for the condenser coolant.

d.

all (a), (b) and (c).

Discuss
Answer: (d).all (a), (b) and (c).
Q117.
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

a.

1

b.

8

c.

80

d.

180

Discuss
Answer: (b).8
Q118.
Generally, elliptical dished heads

a.

are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m² .

b.

resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter.

c.

are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D.

d.

all (a), (b) and (c)

Discuss
Answer: (d).all (a), (b) and (c)
Q119.
Pick out the wrong statement pertaining to the comparative evaluation of performance of the packed tower and the plate tower.

a.

Plate tower is perferred, if interstage cooling is required to remove heats of reaction or solution.

b.

Plate tower is preferred over packed tower, if the operation involves liquids containing dispersed solids.

c.

The total weight of a dry plate tower is usually much more than that of a dry packed tower designed for the same duty.

d.

In operations involving large temperature changes. (e.g. distillation), plate towers are preferred over packed towers as the packing may be crushed due to large temperature changes.

Discuss
Answer: (c).The total weight of a dry plate tower is usually much more than that of a dry packed tower designed for the same duty.
Q120.
The circumferential (hoop) stress in a thin walled cylinderical vessel under internal pressure is

a.

pd/2t

b.

pd/4t

c.

pd/t

d.

pd/3t

Discuss
Answer: (a).pd/2t
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