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 30 of 32

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Q291.
The sewer which collects the discharge from a collecting system and delivers it to a treatment plant, is known

a.

house sewer

b.

lateral sewer

c.

branch sewer

d.

sewer outfall.

Discuss
Answer: (d).sewer outfall.
Q292.
If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is

a.

50 ppm

b.

100 ppm

c.

150 ppm

d.

200 ppm

Discuss
Answer: (d).200 ppm
Q293.
Setting out the alignments of sewers may start from

a.

city

b.

out-fall

c.

tail end

d.

any point.

Discuss
Answer: (c).tail end
Q294.
If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains

a.

Hydrogen sulphide

b.

Carbon dioxide

c.

Methane

d.

Oxygen

Discuss
Answer: (c).Methane
Q295.
In normal conditions, the period for sludge digestion, is

a.

10 days

b.

20 days

c.

30 days

d.

60 days

Discuss
Answer: (c).30 days
Q296.
The bottom of the sewage inlet chamber of septic tanks, is provided an outward slope

a.

1 in 5

b.

1 in 10

c.

1 in 15

d.

1 in 20

Discuss
Answer: (b).1 in 10
Q297.
For a continuous flow type of sedimentation tanks

a.

width of the tank is normally kept about 6 m

b.

length of the tank is normally kept 4 to 5 times the width

c.

maximum horizontal flow velocity is limited to 0.3 m/minute

d.

all the above.

Discuss
Answer: (d).all the above.
Q298.
The temperature affects the

a.

biological activity of bacterias in sewage

b.

solubility of gases in sewage

c.

viscosity of sewage

d.

all the above.

Discuss
Answer: (d).all the above.
Q299.
Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is

a.

centrifugal pump

b.

pneumatic ejector

c.

reciprocating pump

d.

none of these.

Discuss
Answer: (a).centrifugal pump
Q300.
The quantity of liquid waste which flows in sewers during the period of rainfall, is known

a.

sanitary sewage

b.

industrial waste

c.

storm sewage

d.

none of these.

Discuss
Answer: (c).storm sewage
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