Chemical Engineering Basics MCQs

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

Chemical Engineering Basics MCQs | Page 30 of 136

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Q291.
When dry bulb temperature & wet bulb temperature of moist air is the same, it means that the

a.

partial pressure of water vapour is less than the total pressure.

b.

humidity is < 100% & dew point temperature of air has not reached.

c.

dew point temperature of air has not reached & air is not saturated fully.

d.

air is fully saturated.

Discuss
Answer: (d).air is fully saturated.
Q292.
When metals are heated to high temperature, their __________ increases in general.

a.

atomic vibration

b.

creep strength

c.

yield stress & ultimate tensile strength

d.

toughness & stiffness

Discuss
Answer: (a).atomic vibration
Q293.
A friction lighter is normally used for lighting gas welding torch, because of the reason that

a.

its initial cost is very low.

b.

duration of spark created is very small.

c.

safety of welder is ensured.

d.

it is easier to operate & maintain.

Discuss
Answer: (c).safety of welder is ensured.
Q294.
Semi-conductors normally employ __________ bonding.

a.

co-ordinate

b.

ionic

c.

covalant

d.

metallic

Discuss
Answer: (c).covalant
Q295.
High endurance limit of carburised machine parts is because of the fact that carburisation

a.

suppresses any stress concentration produced in the parts.

b.

enhances the yield point of the material.

c.

introduces a compressive layer on the surface.

d.

produces a better surface finish.

Discuss
Answer: (c).introduces a compressive layer on the surface.
Q296.
In __________ process, there is an increase in entropy with no degradation of energy.

a.

isothermal expansion

b.

isochoric heat addition

c.

polytropic expansion

d.

isobaric heat addition

Discuss
Answer: (a).isothermal expansion
Q297.
Which of the following is categorised as the plastic welding ?

a.

Gas welding

b.

Electric arc welding

c.

Forge welding

d.

None of these

Discuss
Answer: (c).Forge welding
Q298.
In spite of large heat transfer co-efficients in boiling liquids, fins are used advantageously, where the entire surface is exposed to __________ boiling.

a.

film

b.

nucleate

c.

transition

d.

all modes of

Discuss
Answer: (d).all modes of
Q299.
Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when

a.

strain rate is increased.

b.

grain size is increased.

c.

prior cold deformation is increased.

d.

not affected by any of the above parameters.

Discuss
Answer: (a).strain rate is increased.
Q300.
__________ are normally subjected to sub-zero treatment.

a.

Highly stressed parts

b.

Gauges or precision parts

c.

Cold rolled sheets

d.

Non machinable materials

Discuss
Answer: (b).Gauges or precision parts
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