Waste Water Engineering MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Waste Water Engineering, a fundamental topic in the field of Civil Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Waste Water Engineering 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 Waste Water Engineering mcq questions that explore various aspects of Waste Water Engineering problems. Each MCQ is crafted to challenge your understanding of Waste Water Engineering principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Civil Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Waste Water Engineering MCQs are your pathway to success in mastering this essential Civil Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Waste Water Engineering. 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 Waste Water Engineering knowledge to the test? Let's get started with our carefully curated MCQs!

Waste Water Engineering MCQs | Page 3 of 32

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Q21.
If the over land flow from the critical point to the drain is 8 km and the difference in level is 12.4 m, the inlet time is

a.

2 hours

b.

3 hours

c.

4 hours

d.

5 hours.

Discuss
Answer: (c).4 hours
Q22.
An inverted siphon is designed generally for

a.

one pipe

b.

two pipes

c.

three pipes

d.

four pipes.

Discuss
Answer: (c).three pipes
Q23.
A rainfall may be classified as acidic if its pH value is less or equal to

a.

6

b.

7

c.

5

d.

6.5

Discuss
Answer: (c).5
Q24.
When drainage to sewage ratio is 20, the peak dry weather flow is

a.

20% of the design discharge

b.

slightly less than 5% of the design discharge

c.

slightly more than 5% of the design discharge

d.

none of these.

Discuss
Answer: (b).slightly less than 5% of the design discharge
Q25.
For treating the sewage of a large city, you will recommend

a.

a sedimentation tank and an activated sludge treatment plant

b.

a plant consisting of Imhoff tanks with low rate trickling filters

c.

sedimentation tanks with high rate trickling filters

d.

none of these.

Discuss
Answer: (a).a sedimentation tank and an activated sludge treatment plant
Q26.
Clogging of sewers, is caused due to

a.

silting

b.

low discharge

c.

greasy and oily matters

d.

all the above.

Discuss
Answer: (d).all the above.
Q27.
A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is

a.

0.30 m/sec

b.

0.35 m/sec

c.

0.40 m/sec

d.

0.45 m/sec

Discuss
Answer: (d).0.45 m/sec
Q28.
The coagulant widely used for sewage treatment, is

a.

alum

b.

ferric chloride

c.

ferric sulphate

d.

chlorinated copperas.

Discuss
Answer: (b).ferric chloride
Q29.
House connections to the laterals is generally made by

a.

R.C.C.

b.

P.C.C.

c.

Cast iron

d.

Glazed stonewares.

Discuss
Answer: (d).Glazed stonewares.
Q30.
The ratio of maximum sewage flow to average sewage flow for mains up to 1 m in diameter, is

a.

1.5

b.

2.0

c.

3.0

d.

4.0

Discuss
Answer: (b).2.0
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