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.
For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.

a.

10000

b.

5

c.

500

d.

1000

Discuss
Answer: (b).5
Q122.
Fresh sewage is __________ in nature.

a.

acidic

b.

neutral

c.

alkaline

d.

highly acidic

Discuss
Answer: (c).alkaline
Q123.
In a sedimentation tank, the detention period for water ranges from __________ hours.

a.

2 to 4

b.

8 to 12

c.

16 to 20

d.

24 to 32

Discuss
Answer: (a).2 to 4
Q124.
On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because

a.

of clotting of blood.

b.

of jamming of respiratory tract.

c.

it forms carboxyhaemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen.

d.

it forms CO₂ by combining with oxygen present in the blood.

Discuss
Answer: (c).it forms carboxyhaemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen.
Q125.
The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the

a.

catalytic conversion

b.

green house effect

c.

global warming

d.

both (b) and (c)

Discuss
Answer: (d).both (b) and (c)
Q126.
Arsenic pollutant is not generated in____industries.

a.

tanneries

b.

glass & ceramic

c.

beverages

d.

any of these.

Discuss
Answer: (c).beverages
Q127.
The resistance of water to the passage of light through it is a measure of the

a.

turbidity

b.

color

c.

hardness

d.

dissolved gases

Discuss
Answer: (a).turbidity
Q128.
Color test of water is done with an instrument called

a.

tintometer

b.

colorimeter

c.

electro-chemical cell

d.

turbidimeter

Discuss
Answer: (a).tintometer
Q129.
Which of the following gases is having the widest explosion limit (about 2 to 81% gas in gas-air mixture), rendering it the property of the most explosive gas ?

a.

Hydrogen

b.

Acetylene

c.

Carbon monoxide

d.

Ammonia

Discuss
Answer: (b).Acetylene
Q130.
Aerosols present in atmospheric air may be

a.

positively charged.

b.

negatively charged.

c.

neutral.

d.

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

Discuss
Answer: (d).combination of all (a), (b) & (c).
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