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 23 of 32

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Q221.
Dry weather flow is :

a.

average daily rate of flow

b.

average monthly rate of flow

c.

average annual rate of flow

d.

water supply allowance per capita

Discuss
Answer: (d).water supply allowance per capita
Q222.
As compared to fresh river water, sea water contains oxygen

a.

10% less

b.

20% less

c.

10% more

d.

20% more.

Discuss
Answer: (b).20% less
Q223.
Sewer pipes need be checked for

a.

minimum flow

b.

maximum flow

c.

both (a) and (b)

d.

none of these.

Discuss
Answer: (c).both (a) and (b)
Q224.
If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of

a.

degradation

b.

active decomposition

c.

recovery

d.

cleaner water

Discuss
Answer: (b).active decomposition
Q225.
The ratio of design discharge to the surface area of a sedimentation tank is called

a.

surface loading

b.

overflow rate

c.

overflow velocity

d.

all of these.

Discuss
Answer: (d).all of these.
Q226.
In the activated sludge process

a.

aeration is continued till stability

b.

aeration is done with an admixture of previously aerated sludge

c.

sludge is activated by constant stirring

d.

water is removed by centrifugal action.

Discuss
Answer: (b).aeration is done with an admixture of previously aerated sludge
Q227.
The settlement velocity of a solid (diameter 0.5 mm, specific gravity 1.75) in water having temperature 10°C, is

a.

213.5 cm/sec

b.

313.5 cm/sec

c.

413.5 cm/sec

d.

500 cm/sec.

Discuss
Answer: (b).313.5 cm/sec
Q228.
In detritus tanks,

a.

flow velocity is kept 0.09 m/sec

b.

detention period is kept 3 to 4 minutes

c.

organic and inorganic materials are separated

d.

all the above.

Discuss
Answer: (d).all the above.
Q229.
The width of a settling tank with 2 hour detention period for treating sewage 378 cu m per hour, is

a.

5 m

b.

5.5 m

c.

6 m

d.

7 m.

Discuss
Answer: (d).7 m.
Q230.
In areas where rainy season is limited to a few months, the type of sewerage system recommended is

a.

combined system

b.

partially separate system

c.

separate system

d.

none of these.

Discuss
Answer: (c).separate system
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