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 119 of 136

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Q1181.
To improve the machinability of steel, it is generally subjected to

a.

spherodising

b.

tempering

c.

normalising

d.

annealing

Discuss
Answer: (a).spherodising
Q1182.
Silicon in steel

a.

makes it usable in almost all magnetic circuits where alternating current is used.

b.

increases its electrical resistivity and decreases the hysteresis loss.

c.

is present upto 5% & 4% respectively when used in transformers & motor armatures.

d.

all 'a', 'b' & 'c'.

Discuss
Answer: (d).all 'a', 'b' & 'c'.
Q1183.
The noble metals

a.

are exemplified by Na, K and Li.

b.

do not resist corrosion very strongly.

c.

are the lowermost in the electro-chemical series of metals.

d.

none of these.

Discuss
Answer: (c).are the lowermost in the electro-chemical series of metals.
Q1184.
Which of the following is an example of cathodic protection of metals against corrosion ?

a.

Painted steel

b.

Galvanised iron

c.

Case hardened steel

d.

Lead lined reactor

Discuss
Answer: (b).Galvanised iron
Q1185.
Thermal efficiency of an internal combustion engine is around __________ percent.

a.

8

b.

35

c.

65

d.

80

Discuss
Answer: (b).35
Q1186.
Pick out the correct combination about the role of various additives used in polymers.

a.

Plasticiser : increases the polymer strength.

b.

Heat stabiliser : increases the maximum service temperature.

c.

Fillers: Does not affect the property of polymer but increases its weight.

d.

Lubricants: increases the flexibility of polymers.

Discuss
Answer: (c).Fillers: Does not affect the property of polymer but increases its weight.
Q1187.
The lightest non-inflammable gas is

a.

H₂

b.

He

c.

Ar

d.

O₂

Discuss
Answer: (b).He
Q1188.
Electrometallurgical methods of metal extraction is normally used for those metals

a.

whose oxide/ore is not reduced by carbon.

b.

which fall in the category of alkali & alkaline earth metals.

c.

which stands higher in the electrochemical series of the metal.

d.

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

Discuss
Answer: (d).all (a), (b) & (c).
Q1189.
Lowering of recrystallisation temperature of metals can be achieved by its

a.

grain refinement.

b.

purification.

c.

working at lower temperature.

d.

all a, b & c.

Discuss
Answer: (d).all a, b & c.
Q1190.
An example of a buffer solution is

a.

mercury

b.

lime water

c.

human blood

d.

concentrated nitric acid

Discuss
Answer: (c).human blood
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