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Test: Sources & Conduits For Water Supply


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10 Questions MCQ Test GATE Civil Engineering (CE) 2023 Mock Test Series | Test: Sources & Conduits For Water Supply

Test: Sources & Conduits For Water Supply for Civil Engineering (CE) 2022 is part of GATE Civil Engineering (CE) 2023 Mock Test Series preparation. The Test: Sources & Conduits For Water Supply questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Sources & Conduits For Water Supply MCQs are made for Civil Engineering (CE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Sources & Conduits For Water Supply below.
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Test: Sources & Conduits For Water Supply - Question 1

The formula, which is most appropriate for the design of pressure pipes is

Detailed Solution for Test: Sources & Conduits For Water Supply - Question 1

Darcy-Weisbach formula is used to compute head loss in certain section of a pipe length.

Test: Sources & Conduits For Water Supply - Question 2

The internal pressure, to which a water supply pipe is subjected to, is

Detailed Solution for Test: Sources & Conduits For Water Supply - Question 2

The internal pressure within a pipe is caused by the water head to which the pipe can be subjected and the additional transient pressures. The maximum internal pressure under worst circumstances is sum of full static pressure and the water hammer pressure.

Test: Sources & Conduits For Water Supply - Question 3

Match the columns most appropriately
Water pipe material
A. Cast iron
B. Steel
C. R.C.C

Average age of pipe
1. 75 years
2. 100 years
3. 40 years

     A B C
(a) 1 2 3
(b) 1 3 2
(c) 3 2 1
(d) 2 3 1

Test: Sources & Conduits For Water Supply - Question 4

The valve, which allows the flow only in one direction, is a

Detailed Solution for Test: Sources & Conduits For Water Supply - Question 4

Check values or Reflux valves: Check valves are sometimes called non-return valves because they prevent water to flow back in the opposite direction. They may be installed on the delivery side of the pumping set, so as to prevent the back flow of stored or pumped water, when the pump is stopped.

Test: Sources & Conduits For Water Supply - Question 5

The valve, which is provided in the water distributing pipes at street corners and pipe junctions to control the flow in the distribution system, is

Detailed Solution for Test: Sources & Conduits For Water Supply - Question 5

Sluice valves are used to regulate the flow of water through the pipes. They are usually placed at the summits.

Test: Sources & Conduits For Water Supply - Question 6

Scour valves are provided

Detailed Solution for Test: Sources & Conduits For Water Supply - Question 6

In order to remove the entire water from within a pipe (after closing the supply), small gated offtakes are provided at low points. These valves are known as blow off valves or drain valves or scour valves. These valves, are necessary at low level points for completely emptying the pipe for inspection, repairs, etc.

Test: Sources & Conduits For Water Supply - Question 7

Cast iron pipes having plain ends, are joined by a joint, called

Detailed Solution for Test: Sources & Conduits For Water Supply - Question 7

This type of a joint is used when it is required to join the plain ends of cast iron pipes. The joints are strong and rigid. They can withstand vibrations and are, therefore, useful for pipes to be carried over bridges or below bridges in hangers.

Test: Sources & Conduits For Water Supply - Question 8

Consider the following statements:
The basic difference between water pipes and sewer pipes is
1. in the material used for the pipes
2. in the pressure of the liquid flow
3. in the suspended solids they carry

Which of these statements is/are correct?

Detailed Solution for Test: Sources & Conduits For Water Supply - Question 8

Cast iron pipes can be used for both-water pipes and sewer pipes. However the basic difference is pressure flow in water pipe and suspended solids carried in sewage.

Test: Sources & Conduits For Water Supply - Question 9

By using economical diameter of water mains, the benefit obtained is in terms of

Detailed Solution for Test: Sources & Conduits For Water Supply - Question 9

If diameter > Economical dia

  • Less cost of Pumping
  • High cost of pipe material 

If diameter < economical dia

  • Less cost of pipe material
  • High cost of pumping
Test: Sources & Conduits For Water Supply - Question 10

High pH value of water in the pipe does not produce

Detailed Solution for Test: Sources & Conduits For Water Supply - Question 10

Higher pH means presence of alkali in water which sets at the surface of pipe leading to incrustation, sediment deposits and tuberculation.
However, discharge depends on the volume of water/ sewage carried by pipe in a given time and is independent of pH.

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