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 25 of 31

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Q241.
__________ can not control the noise pollution.

a.

Use of silencers

b.

Green house gases

c.

Vibration damping

d.

Tree plantation

Discuss
Answer: (b).Green house gases
Q242.
Ozone level is generally found to be depleted in India in the month of

a.

February

b.

July

c.

April

d.

December

Discuss
Answer: (d).December
Q243.
Noise level during normal conversation among men is about __________ decibles.

a.

10

b.

45

c.

90

d.

115

Discuss
Answer: (b).45
Q244.
'Particulate' air pollutants are finely divided solids and liquids. Which of the following is not a 'particulate' ?

a.

Dust & mists

b.

Smoke & fumes

c.

Photochemical smog & soot

d.

None of these

Discuss
Answer: (d).None of these
Q245.
Pick out the wrong statement.

a.

Biological oxygen demand (B.O.D.) value of a sewerage sample is always lower than its chemical oxygen demand (C.O.D.) value.

b.

Environmental pollution by NOₓ emission is much higher by four stroke petrol engines as compared to the two stroke engines.

c.

Temperature in stratosphere rises with increasing altitude.

d.

The characteristic of a green house body is that it allows the long wavelength incoming solar radiation to come in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere.

Discuss
Answer: (d).The characteristic of a green house body is that it allows the long wavelength incoming solar radiation to come in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere.
Q246.
Peroxyacyl nitrate (PAN), a pollutant is found in the

a.

automobile exhaust.

b.

flue gas of coal based power plant.

c.

exhaust of nitric acid plant.

d.

exhaust of sulphuric acid plant.

Discuss
Answer: (a).automobile exhaust.
Q247.
Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water.

a.

turbidity

b.

color (Hazen)

c.

total solids

d.

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

Discuss
Answer: (d).all (a), (b) & (c)
Q248.
Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools).

a.

1-2

b.

5-10

c.

15-20

d.

25-30

Discuss
Answer: (b).5-10
Q249.
Pick out the wrong statement.

a.

Catalytic converter is fitted in automobiles to reduce carbon monoxide concentration in exhaust emissions.

b.

Inhalation of pollutant carbon monoxide results in death by asphyxiation.

c.

Sulphur dioxide is the main pollutant emitted from the exhaust of petrol driven automobiles.

d.

Decomposition of plants containing chlorophyll is a natural source of carbon monoxide in atmosphere.

Discuss
Answer: (c).Sulphur dioxide is the main pollutant emitted from the exhaust of petrol driven automobiles.
Q250.
Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the

a.

gravity settling chamber

b.

cyclone separator

c.

electrostatic precipitator

d.

bag filter

Discuss
Answer: (c).electrostatic precipitator
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