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 5 of 35

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Q41.
Smoke density of the flue gas going out of the chimney is measured by a

a.

polarograph

b.

thermal conductivity meter

c.

photo electric cell

d.

chromatograph

Discuss
Answer: (c).photo electric cell
Q42.
Which of the following measurements can be made by the measurement of emf ?

a.

pH value

b.

Degree of hydrolysis

c.

Composition of complex ions

d.

All (a), (b) & (c)

Discuss
Answer: (d).All (a), (b) & (c)
Q43.
A magnetic flowmeter is

a.

based on the principle of Faraday's law.

b.

capable of measuring the flow rate of slurries and electrolytes.

c.

based on the linear relationship between the fluid flow rate and the induced voltage.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q44.
Zirconia probe is used for the continuous measurment of __________ flue gases going out of the furnace.

a.

oxygen in

b.

carbon dioxide in

c.

carbon monoxide in

d.

temperature of

Discuss
Answer: (a).oxygen in
Q45.
Strain gage pressure transducers are used to measure __________ pressures.

a.

gage as well as vacuum

b.

absolute as well as differential

c.

both (a) and (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) and (b)
Q46.
Temperature measuring instruments are standardised mostly with __________ points of pure substances.

a.

melting

b.

boiling

c.

both (a) & (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) & (b)
Q47.
Pick out the first order system from among the following.

a.

Damped vibrator.

b.

Mercury in glass thermometer kept in boiling water.

c.

Interacting system of two tanks in series.

d.

Non-interacting system of two tanks in series.

Discuss
Answer: (b).Mercury in glass thermometer kept in boiling water.
Q48.
The maximum service temperature for fibre glass used as thermocouple wire insulation material is __________ °C.

a.

250

b.

500

c.

750

d.

1000

Discuss
Answer: (b).500
Q49.
Which of the following controllers has the least maximum deviation ?

a.

P-controller

b.

P-I controller

c.

P-I-D controller

d.

P-D controller

Discuss
Answer: (d).P-D controller
Q50.
Volumetric expansion is the working principle of the __________ thermometers.

a.

mercury in glass

b.

constant volume gas

c.

vapor pressure

d.

bimetallic

Discuss
Answer: (a).mercury in glass
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