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 11 of 50

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Q101.
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
Q102.
Lₑ/D for fully open gate valves would be

a.

much more than that for fully open globe valves.

b.

much less (say 2% than that for fully open globe valves).

c.

around 7.

d.

both (b) and (c).

Discuss
Answer: (d).both (b) and (c).
Q103.
LMTD correction factor is used in heat exchanger design for

a.

double pipe heat exchanger.

b.

multipass shell and tube heat exchanger.

c.

fouling fluids.

d.

counter flow of hot and cold fluids.

Discuss
Answer: (b).multipass shell and tube heat exchanger.
Q104.
Pick out the wrong statement about the design of a sieve plate column.

a.

An increased weir height improves the tray efficiency at the cost of high plate pressure drop; optimum wear height being 40-90 mm for column pressure above atmospheric and 6-12 mm for vacuum columns.

b.

For segmental downcomers, the chord length is 60-80% of the column diameter. An initial value of downcomer area of 12% is taken in the design.

c.

Width of the calming section provided at the inlet and outlet sides of the plate is 75 mm for column diameter below 1.5 metres and 100 mm for larger diameter columns.

d.

Minimum recommended downcomer residence time for the disengagement of entrained vapour is the same for both foaming and non-foaming liquids, which is about 20 seconds.

Discuss
Answer: (d).Minimum recommended downcomer residence time for the disengagement of entrained vapour is the same for both foaming and non-foaming liquids, which is about 20 seconds.
Q105.
The ratio of working capital to total capital investment for most chemical plants (except for non-seasonal based products) is in the range of __________ percent.

a.

0.1 to 1

b.

1 to 2

c.

10 to 20

d.

50 to 60

Discuss
Answer: (c).10 to 20
Q106.
Utilities cost in the operation of chemical process plant comes under the

a.

plant overhead cost

b.

fixed charges

c.

direct production cost

d.

general expenses

Discuss
Answer: (c).direct production cost
Q107.
Pick out the wrong statement.

a.

The annual depreciation rate for machinery and equipments in a chemical process plant is about 10% of the fixed capital investment.

b.

Annual depreciation rate of buildings in a chemical plant is about 3% of its initial cost.

c.

Insurance rates on annual basis in a chemical plant may be about 1% of the fixed capital investment.

d.

In a chemical industry, research and development cost amounts to about 15% of net sales realisation (NSR).

Discuss
Answer: (d).In a chemical industry, research and development cost amounts to about 15% of net sales realisation (NSR).
Q108.
'Utilities' in a chemical process plant includes compressed air, steam, water, electrical power, oxygen, acetylene, fuel gases etc. Utility costs for ordinary chemical process plants ranges roughly from __________ percent of the total product cost.

a.

1 to 5

b.

10 to 20

c.

25 to 35

d.

35 to 45

Discuss
Answer: (b).10 to 20
Q109.
The economic life of a large chemical process plant as compared to a small chemical plant is

a.

only slightly more

b.

much more

c.

slightly less

d.

almost equal

Discuss
Answer: (b).much more
Q110.
Cost of instrumentation in a modern chemical plant ranges from __________ percent of the total plant cost.

a.

5 to 10

b.

20 to 30

c.

40 to 50

d.

60 to 70

Discuss
Answer: (b).20 to 30
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