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 16 of 35

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Q151.
Continuous measurement of moisture in paper is done by

a.

sling psychrometer.

b.

hair-hygrometer.

c.

weighing.

d.

high resistance Wheatstone's bridge circuit.

Discuss
Answer: (d).high resistance Wheatstone's bridge circuit.
Q152.
Psychrometer determines the

a.

humidity of gases

b.

moisture content of solids

c.

water of crystallisation

d.

hygroscopic nature of solids

Discuss
Answer: (a).humidity of gases
Q153.
The deflection of the free end of the bimetallic strips in a bimetallic thermometer with temperature is nearly

a.

linear

b.

non-linear

c.

parabolic

d.

hyperbolic

Discuss
Answer: (a).linear
Q154.
Alphatron measures pressure __________ microns.

a.

< 1

b.

< 3

c.

> 3

d.

< 0.1

Discuss
Answer: (c).> 3
Q155.
What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system ?

a.

1

b.

>1

c.

< 1

d.

none of these

Discuss
Answer: (c).< 1
Q156.
Which of the following controllers has maximum offset ?

a.

P-controller

b.

P-I controller

c.

P-D controller

d.

P-I-D controller

Discuss
Answer: (a).P-controller
Q157.
Pressure of 0.01 psi (absolute) can be measured by __________ gauge.

a.

ionisation

b.

Pirani

c.

Mcloid

d.

none of these

Discuss
Answer: (c).Mcloid
Q158.
High temperature of around 2000°C of incandescent gas mantles is measured by a/an

a.

specially designed thermocouple.

b.

optical pyrometer.

c.

radiation pyrometer.

d.

none of these.

Discuss
Answer: (c).radiation pyrometer.
Q159.
The unit step response of the transfer function 1/(s² + 2s + 3)

a.

has a non-zero slope at the origin.

b.

has a damped oscillatory characteristics.

c.

is overdamped

d.

is unstable

Discuss
Answer: (b).has a damped oscillatory characteristics.
Q160.
Number of poles in a system with transfer function 1 / (s²+2s²+1) is

a.

2

b.

5

c.

3

d.

1

Discuss
Answer: (c).3
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