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.
The operation of a rotameter is based on

a.

variable flow area.

b.

rotation of a turbine.

c.

pressure drop across a nozzle.

d.

pressure at a stagnation point.

Discuss
Answer: (a).variable flow area.
Q56.
The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an __________ thermocouple.

a.

chromel-alumel

b.

iron-constantan

c.

platinum-platinum/rhodium

d.

none of these.

Discuss
Answer: (b).iron-constantan
Q57.
Instrumentation in a plant offers the advantage of

a.

greater safety of operation

b.

better quality of product

c.

greater operation economy

d.

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

Discuss
Answer: (d).all (a), (b) and (c)
Q58.
Which of the following temperature measuring instruments need not touch the object whose temperature is being measured ?

a.

Radiation/infrared pyrometer

b.

Filled system thermometer

c.

Mercury in glass thermometer

d.

Thermo electric pyrometer

Discuss
Answer: (a).Radiation/infrared pyrometer
Q59.
Pick out the wrong statement.

a.

O₂, NO and NO₂ exhibit paramagnetic properties as a result of unpaired electrons.

b.

CO₂ is the strongest paramagnetic gas.

c.

Paramagnetic susceptibility of gases decreases with temperature.

d.

Paramagnetic susceptibility of gases permits the measurement of their concentration.

Discuss
Answer: (b).CO₂ is the strongest paramagnetic gas.
Q60.
The __________ of a vapor pressure thermometer is a functioning element.

a.

pointer

b.

bourdon tube

c.

bulb

d.

none of these

Discuss
Answer: (a).pointer
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