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 10 of 32

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Q91.
Pick up the incorrect statement from the following :

a.

Septic tanks are horizontal continuous flow type of sedimentation tanks

b.

Septic tanks are generally provided a detention period of 12 to 36 hours

c.

Septic tanks are completely covered and high vent shafts are provided for the escape of foul gases

d.

None of these.

Discuss
Answer: (d).None of these.
Q92.
Hydraulic mean radius is

a.

mean radius of sewer

b.

difference in heads between two points in circular pipes

c.

mean of radii in a pipe line of varying cross-sections

d.

cross-sectional area/wetted perimeter.

Discuss
Answer: (d).cross-sectional area/wetted perimeter.
Q93.
Sewer ventilating columns are generally placed at

a.

distances 150 m to 300 m

b.

upper ends of branch sewers

c.

every change in the size of sewers

d.

all the above.

Discuss
Answer: (d).all the above.
Q94.
In case of Imhoff tanks,

a.

the shape is rectangular

b.

detention period is 2 hours

c.

the velocity of flow is restricted to 0.30 m/minute

d.

All the above.

Discuss
Answer: (d).All the above.
Q95.
If the depth of partial flow in a sewer of diameter 2 m, is 50 cm, its wetted perimeter is

a.

π

b.

π/2

c.

π/3

d.

2π/3

Discuss
Answer: (d).2π/3
Q96.
A drop manhole is provided if

a.

a sewer drops from a height

b.

a branch sewer joins the main sewer at higher level

c.

a lamp is inserted to check obstruction

d.

none of these.

Discuss
Answer: (b).a branch sewer joins the main sewer at higher level
Q97.
In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is

a.

5

b.

10

c.

15

d.

20

Discuss
Answer: (d).20
Q98.
In septic tanks,

a.

free board of 0.3 m may be provided

b.

the baffles or tees are extended up to top level of scum

c.

the clear space between the baffle top and covering slab is about 7.5 cm

d.

all the above.

Discuss
Answer: (d).all the above.
Q99.
The sewer pipe which carries sewage from a building for immediate disposal is

a.

house sewer

b.

lateral sewer

c.

intercepting sewer

d.

main sewer.

Discuss
Answer: (a).house sewer
Q100.
The algae dies out in the zone of

a.

degradation

b.

active decomposition

c.

recovery

d.

cleaner water.

Discuss
Answer: (a).degradation
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