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 13 of 31

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Q121.
Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels.

a.

75

b.

95

c.

120

d.

140

Discuss
Answer: (b).95
Q122.
Workers working in __________ industry are most prone to white lung cancer.

a.

coal mining

b.

limestone mining

c.

textile

d.

asbestos

Discuss
Answer: (c).textile
Q123.
A standard test for determination of hardness in water is termed as __________ test.

a.

EDTA

b.

electometric

c.

total count

d.

presumptive

Discuss
Answer: (a).EDTA
Q124.
TLV of lead for public sewer/waste water is about __________ ppm.

a.

1

b.

25

c.

150

d.

650

Discuss
Answer: (a).1
Q125.
Presence of nitrates in water in excess of 50 ppm causes

a.

mathenoglobenemia

b.

gastroentetitis

c.

asphyxiation

d.

tooth decay

Discuss
Answer: (a).mathenoglobenemia
Q126.
In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks.

a.

1 to 2

b.

4 to 5

c.

9 to 10

d.

15 to 20

Discuss
Answer: (b).4 to 5
Q127.
The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels.

a.

60

b.

90

c.

105

d.

120

Discuss
Answer: (b).90
Q128.
The most commonly used chemical coagulant in water treatment is

a.

ferrous sulphate

b.

alum

c.

lime

d.

hydrazine

Discuss
Answer: (b).alum
Q129.
The biological decomposition of organic substances in wastes controlled conditions is called

a.

incineration

b.

biological oxidation

c.

composting

d.

none of these

Discuss
Answer: (c).composting
Q130.
Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of

a.

CO₂

b.

SO₂

c.

hydrocarbons

d.

CFC (chloro fluoro carbon)

Discuss
Answer: (d).CFC (chloro fluoro carbon)
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