Chemical Engineering and Environment MCQs

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

Chemical Engineering and Environment MCQs | Page 20 of 31

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Q191.
Which of the following is the most major constituents of air pollutants ?

a.

Oxides of sulphur

b.

Oxides of nitrogen

c.

Carbon monoxide

d.

Hydrogen sulphide

Discuss
Answer: (a).Oxides of sulphur
Q192.
Shouting by a man at his full voice corresponds to a voice level of about __________ decibels.

a.

25

b.

50

c.

80

d.

120

Discuss
Answer: (c).80
Q193.
Carbonaceous particles having size less than 1 ΞΌm are called

a.

grit

b.

aggregates

c.

aerosols

d.

smoke

Discuss
Answer: (d).smoke
Q194.
__________ substances present in sewage are removed in grit chamber during sewage treatment.

a.

Organic

b.

Fatty

c.

Inorganic

d.

Dissolved

Discuss
Answer: (c).Inorganic
Q195.
Pick out the wrong statement pertaining to 'green house' for the plants.

a.

'Green house' (made of glass) allows visible sunlight (i.e., short wavelength solar radiation like ultra-violet rays) to pass through the glass and heat up the soil thereby warming up plants inside it.

b.

The emitted longer wavelength radiation (e.g., infrared) is partly reflected and partly absorbed by the glass of the green house.

c.

Green house effect' in earth's atmosphere is due to increasing COβ‚‚ level in atmosphere. where COβ‚‚ acts like the glass of 'green house' thereby warming up the earth's surface.

d.

'Green house' is colder than the outside atmosphere.

Discuss
Answer: (d).'Green house' is colder than the outside atmosphere.
Q196.
In water treatment, alum[Alβ‚‚(SOβ‚„)₃] is used for the process of

a.

filtration

b.

coagulation

c.

sedimentation

d.

disinfection

Discuss
Answer: (b).coagulation
Q197.
Pick out the one which is not a chemical coagulant.

a.

Aluminium sulphate

b.

Ferrous sulphate

c.

Hydrated lime

d.

Chloramine

Discuss
Answer: (d).Chloramine
Q198.
Presence of iron and manganese in water causes

a.

reduction in its dissolved oxygen content.

b.

discoloration of bathroom fixtures.

c.

temporary hardness.

d.

none of these.

Discuss
Answer: (b).discoloration of bathroom fixtures.
Q199.
Septic tanks are used for the __________ of the deposited solids.

a.

separation

b.

anaerobic decomposition

c.

aerobic decomposition

d.

none of these

Discuss
Answer: (b).anaerobic decomposition
Q200.
The term Biological Oxygen Demand (BOD) is used in relation to

a.

potable water

b.

cooling water

c.

distilled water

d.

industrial effluents

Discuss
Answer: (d).industrial effluents
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