Process Control and Instrumentation MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Process Control and Instrumentation, 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 Control and Instrumentation 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 Control and Instrumentation mcq questions that explore various aspects of Process Control and Instrumentation problems. Each MCQ is crafted to challenge your understanding of Process Control and Instrumentation 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 Control and Instrumentation 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 Control and Instrumentation. 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 Control and Instrumentation knowledge to the test? Let's get started with our carefully curated MCQs!

Process Control and Instrumentation MCQs | Page 6 of 35

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Q51.
Pick out the one which is a first order instrument.

a.

Mercury in glass thermometer (without any covering or air gap).

b.

Bare metallic thermometer.

c.

Bare vapor pressure thermometer.

d.

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

Discuss
Answer: (d).All (a), (b) and (c).
Q52.
Load cells are used for the measurement of

a.

stress

b.

weight

c.

strain

d.

velocity

Discuss
Answer: (b).weight
Q53.
Which of the following is the dynamic characteristics of an instrument ?

a.

Reproducibility

b.

Sensitivity

c.

Dead zone

d.

Fidelity

Discuss
Answer: (d).Fidelity
Q54.
Which of the following is a desirable characteristic of an instrument ?

a.

High drift

b.

High fidelity

c.

High measuring lag

d.

Poor reproducibility

Discuss
Answer: (b).High fidelity
Q55.
Which is the symbol for "pneumatic control valve" ?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q56.
Find the ultimate gain and frequency for a proportional controller in the case of a process having the transfer function Gp(s) = 1/(4s + 1)(2s + 1)(s + 1).

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q57.
Find the Laplace transform of the following input function shown in figure.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q58.
A control system has the following transfer function. The initial value of the corresponding time function is

a.

1

b.

1/8

c.

7/8

d.

-1

Discuss
Answer: (a).1
Q59.
The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function given below, will have a definite number of loci for variation of K from 0 to ∞. The number of loci is

a.

1

b.

3

c.

4

d.

2

Discuss
Answer: (b).3
Q60.
What is the Laplace transform of sin t ?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
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