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 16 of 32

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Q151.
For a grit chamber, if the recommended velocity of flow is 0.2 m/sec and detention period is 2 minutes, the length of the tank, is

a.

16 m

b.

20 m

c.

24 m

d.

30 m.

Discuss
Answer: (c).24 m
Q152.
If the peak discharge of a storm water drain (S.W. Drain) is e.xpected to exceed 150 cumecs, the free board to be provided, is

a.

100 cm

b.

90 cm

c.

80 cm

d.

50 cm.

Discuss
Answer: (a).100 cm
Q153.
PH value of sludge during alkaline regression stage, is

a.

more than 7

b.

less than 7

c.

less than 6

d.

more than 6.

Discuss
Answer: (a).more than 7
Q154.
Depletion of ozone layer in the outer atmosphere may cause

a.

lung cancer

b.

skin cancer

c.

bronchitis

d.

heart disorder.

Discuss
Answer: (b).skin cancer
Q155.
The spacing of bars of perforations of fine screens used for the treatment of sewage, is

a.

2 to 3 mm

b.

3 to 5 mm

c.

5 to 8 mm

d.

8 to 10 mm.

Discuss
Answer: (a).2 to 3 mm
Q156.
The self-cleansing velocity of water flowing through pipe lines, is

a.

2 metres/sec

b.

1 metre/sec

c.

0.5 metre/sec

d.

0.25 metre/sec.

Discuss
Answer: (a).2 metres/sec
Q157.
The pH value of fresh sewage is usually

a.

equal to 7

b.

more than 7

c.

less than 7

d.

equal to zero.

Discuss
Answer: (b).more than 7
Q158.
The moisture content of a sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is

a.

25%

b.

50%

c.

10%

d.

5%.

Discuss
Answer: (b).50%
Q159.
Inter-distance between ventilation columns in a sewer line is kept

a.

25 to 50 m

b.

50 m to 100 m

c.

100 m to 150 m

d.

150 m to 300 m.

Discuss
Answer: (d).150 m to 300 m.
Q160.
The factor responsible for purification of sewage in river is

a.

Hydrology

b.

Dissolved oxygen in water

c.

Temperature

d.

All the above.

Discuss
Answer: (d).All the above.
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