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 5 of 32

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Q41.
Pick up the correct statement from the following :

a.

pH value indicates acidity and alkalinity of sewage

b.

In acidic sewage, the pH value is less than 7

c.

In alkaline sewage, the pH value is more than 7

d.

All the above.

Discuss
Answer: (d).All the above.
Q42.
The non-clog pump which permits solid matter to pass out with the liquid sewage, is

a.

centrifugal pump

b.

reciprocating pump

c.

pneumatic ejector

d.

none of these.

Discuss
Answer: (a).centrifugal pump
Q43.
Assertion (A) : Discharging the effluents from the oxidation ponds just up stream of lakes or reservoirs is undesirable.

Reason (R) : The discharged algae get settled in the reservoirs and cause anaerobic decomposition and other water qualities.

a.

Both A and R are true and R is the correct explanation of A

b.

Both A and R are true but R is not a correct explanation of A

c.

A is true but R is false

d.

A is false but R is true.

Discuss
Answer: (a).Both A and R are true and R is the correct explanation of A
Q44.
The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is

a.

0.68 m

b.

0.88 m

c.

1.36 m

d.

1.76 m.

Discuss
Answer: (c).1.36 m
Q45.
Flocculated particles do not change their

a.

size

b.

shape

c.

weight

d.

none of these.

Discuss
Answer: (d).none of these.
Q46.
For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is

a.

cast iron sewers

b.

cement concrete sewers

c.

glazed bricks sewers

d.

stone ware sewers.

Discuss
Answer: (c).glazed bricks sewers
Q47.
Disposal to sewage in large cities, is done in

a.

irrigation

b.

dilution

c.

oxidation

d.

putrifaction.

Discuss
Answer: (b).dilution
Q48.
For the COD test of sewage, organic matter is oxidised by K₂Cr₂0₇ in the presence of

a.

H₂SO₄

b.

HNO₃

c.

HCl

d.

none of these.

Discuss
Answer: (a).H₂SO₄
Q49.
In R.C. sewer pipes, the percentage longitudinal reinforcement to the cross-sectional area of concrete is kept

a.

10.0

b.

5.0

c.

2.0

d.

0.25

Discuss
Answer: (d).0.25
Q50.
The dimensions of a rectangular settling tank are : length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is

a.

204 cu m

b.

208 cu m

c.

212 cu m

d.

216 cu m

Discuss
Answer: (d).216 cu m
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