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Test: Sewage Collection - 1 - Civil Engineering (CE) MCQ


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10 Questions MCQ Test GATE Civil Engineering (CE) 2025 Mock Test Series - Test: Sewage Collection - 1

Test: Sewage Collection - 1 for Civil Engineering (CE) 2024 is part of GATE Civil Engineering (CE) 2025 Mock Test Series preparation. The Test: Sewage Collection - 1 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Sewage Collection - 1 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 - 1 below.
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Test: Sewage Collection - 1 - Question 1

The liquid wastes originating from residential and industrial buildings, are collectively called:

Detailed Solution for Test: Sewage Collection - 1 - Question 1

The sum total of domestic and industrial sewage is termed as sanitary sewage or simply sewage.

Test: Sewage Collection - 1 - Question 2

A combined sewerage system, collectively carries

Detailed Solution for Test: Sewage Collection - 1 - Question 2

When the rain runoff drainage is carried along with sewage it is called a combined system. When the drainage and sewage are taken independently of each other through two different sets it is called a separate system.

Test: Sewage Collection - 1 - Question 3

An sewer pipe carrying sewage from a building to the point of its immediate disposal, is called.

Detailed Solution for Test: Sewage Collection - 1 - Question 3

Test: Sewage Collection - 1 - Question 4

The sewer pipes have to be designed and checked for

Detailed Solution for Test: Sewage Collection - 1 - Question 4

The sewer pipes have to be designed and checked for both maximum and minimum flows. This is because:

  1. Maximum Flow: The pipes must be capable of handling the peak flow rates to prevent overflow and flooding during periods of high usage, such as during heavy rainfall or when there is a significant discharge into the sewer system.

  2. Minimum Flow: The pipes must also be designed to ensure there is sufficient flow even during low usage periods to prevent sedimentation, blockages, and the buildup of foul gases.

So, the correct answer is: both maximum and minimum flows

Test: Sewage Collection - 1 - Question 5

The ratio of maximum daily sewage flow to the average daily sewage flow for sewer mains of 0.5 to 1 m diameter, is generally taken as

Detailed Solution for Test: Sewage Collection - 1 - Question 5

Maximum daily flow = 2 times the average daily flow
Maximum hourly flow = 1.5 times the maximum daily flow
= 3 times the average daily flow

Test: Sewage Collection - 1 - Question 6

The ratio of minimum hourly flow to the average flow of sewage, is

Detailed Solution for Test: Sewage Collection - 1 - Question 6

Minimum daily flow = 2/3 x Average daily
Minimum hourly flow  = 1/2 x Minimum daily flow 
= 1/3 Average daily

Test: Sewage Collection - 1 - Question 7

The value of the coefficient of runoff for perfectly impervious areas, tend to:

Detailed Solution for Test: Sewage Collection - 1 - Question 7

Coefficient of runoff is a factor which tells the proportion of water flowing off and not going into the earth. Since, for perfectly impervious area all of the water will flow off and none will get into the ground, therefore, the coefficient of runoff will be equal to 1.

Test: Sewage Collection - 1 - Question 8

The drainage discharge of a town of 16 hectares area, consisting of 40% hard paved (k = 0.8), 30% unpaved (k = 0.20), and remaining as wooded (k = 0.1), with a max. rain intensity of 5 cm/hr, would be computed by Rational formula, as equal to

Detailed Solution for Test: Sewage Collection - 1 - Question 8

Test: Sewage Collection - 1 - Question 9

Pick up the incorrect statement:

Test: Sewage Collection - 1 - Question 10

In a circular sewer of dia D, if the depth of flow is D/4, the wetted perimeter will be equal to

Detailed Solution for Test: Sewage Collection - 1 - Question 10


Proportionate perimeter:

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