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Test: Sewage Collection - 2 - Civil Engineering (CE) MCQ


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10 Questions MCQ Test Topicwise Question Bank for Civil Engineering - Test: Sewage Collection - 2

Test: Sewage Collection - 2 for Civil Engineering (CE) 2024 is part of Topicwise Question Bank for Civil Engineering preparation. The Test: Sewage Collection - 2 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Sewage Collection - 2 MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Sewage Collection - 2 below.
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Test: Sewage Collection - 2 - Question 1

Testing of sewer pipes may involve

Test: Sewage Collection - 2 - Question 2

Manholes are generally located

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Test: Sewage Collection - 2 - Question 3

When a sewer line is dropped below the hydraulic gradient line to pass it through an obstruction, the arrangement is known as

Detailed Solution for Test: Sewage Collection - 2 - Question 3

An inverted siphon is a sewer section constructed lower than the adjacent sewer sections, and it runs full under gravity with pressure greater than the atmosphere. An inverted siphon is usually made of siphon tubes or pipes made of cast iron or concrete.

Test: Sewage Collection - 2 - Question 4

The slope of a 1.0 m diameter concrete sewer laid at a slope of 1 in 1000, develops a velocity of 1 m/s, when flowing full. When it is flowing half-full, the velocity of flow through the sewer will be

Detailed Solution for Test: Sewage Collection - 2 - Question 4

For d/D = 0.5; v/V = 1.0
where d is depth of flow
v is flow velocity at depth d 
D is diameter of sewer
V is flow velocity at full flow 
∴ v = 1.0 m/s

Test: Sewage Collection - 2 - Question 5

Self-cleansing velocity is

Test: Sewage Collection - 2 - Question 6

In the design of storm sewers, “time of concentration” is relevant to determine the

Detailed Solution for Test: Sewage Collection - 2 - Question 6

Time of concentration (tc) is the time taken by water droplet to reach the catchment outlet from farthest part. So whole catchment contributes to runoff only when the time of rainfall is greater than 'tc' it is used to determine critical rainfall intensity.

Test: Sewage Collection - 2 - Question 7

The maximum flow occurs in an egg shaped sewer when the ratio of flow depth to vertical diameter is

Test: Sewage Collection - 2 - Question 8

Match List-I (Unit) with List-ll (Purpose) and select the correct answer using the codes given below the lists:
List-I
A. Leaping weir
B. Gutter inlet
C. Inverted syphon
D. Catch basin

List-II
1. To prevent grit, sand, debris, etc. from entering the storm sewer.
2. To carry the sewer below a stream or railway line
3. To drain rain water from roads to the storm sewer
4. To 'separate storm water and the sanitary sewage

Codes:
     A B C D
(a) 4 3 1 2
(b) 4 3 2 1
(c) 3 4 2 1
(d) 3 4 1 2

Test: Sewage Collection - 2 - Question 9

A sewer is commonly designed to attain self- cleansing velocity at

Test: Sewage Collection - 2 - Question 10

If a sewer X is to be designed to generate equivalent self-cleansing action as in sewer Y, then

Detailed Solution for Test: Sewage Collection - 2 - Question 10

Velocity and discharge are functions of tractive force intensity which depends upon friction coefficient as well as flow velocity. For equal self cleansing tractive force intensity should be same in both sewers.

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