Water Supply Engineering MCQ

Water Supply Engineering MCQ

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  • 31st Aug, 2022

Water Supply Engineering MCQ Questions

Take Water Supply Engineering MCQ Test & Online Quiz to Test Your Knowledge

Practice here the best Water Supply Engineering MCQ Questions test that checks your basic knowledge of Water Supply Engineering. This Water Supply Engineering MCQ Test contains 20+ Multiple Choice Questions. You have to select the right answer to the question. Apart from this, you can also download here the Water Supply Engineering MCQ PDF completly free.

Water Supply Engineering MCQ Test

1) What is the most commonly used pump for lifting water in water supply mains?

  • A. Rotary type pump
  • B.Axial flow pump
  • C.Centrifugal pumps
  • D.None of the above

2) What does water supply system include?

  • A. Construction of dams
  • B.Digging a well for water
  • C.Construction of dams
  • D.Entire arrangement from source to distribution.

3) Percussion drilling is unsuitable in .......

  • A. Quick sand
  • B.Unconsolidated sand
  • C.Consolidated rocks
  • D.Unconsolidated gravel

4) Disinfection of water with ozone is not good because ...........

  • A. It adds taste to the water
  • B.It vanishes before water reaches the consumers
  • C.It vanishes before water reaches the consumers
  • D.it is more efficient than chlorine in killing bacterias

5) The efficiency of sedimentation tank does not depend upon

  • A. Length of tank
  • B.Depth of tank
  • C.Detention period
  • D.Velocity of water

6) What is the main process to purify water by filtration?

  • A. Electronic change
  • B.Mechanical straining
  • C.Biological metabolism
  • D.All of the Above

7) What is the period of cleaning of a slow sand filter?

  • A. One Year
  • B.Two weeks to three weeks
  • C.One month to three months
  • D.Three months to six months

8) The maximum hourly consumption, is generally taken as ...........

  • A. 120%
  • B.130%
  • C.140%
  • D.150%.

9) What does the city supply include?

  • A. Domestic water demand
  • B.Demand for public uses and fire
  • C.Industrial and commercial water demands
  • D.All of the above

10) Rapid gravity filter can only remove turbidity of water up to 50 gm/liter.

  • A. True
  • B.False

11) the bacteria which require oxygen for their survival is known as .........

  • A. Aerobic bacterias
  • B.Faculative bacteria
  • C.Anaerobic bacterias
  • D.None of the above

12) What is the most commonly used chemical for the dechlorination of water?

  • A. sulphur-dioxide
  • B.Sodium sulphite
  • C.Sodium bisulphate
  • D.Sodium thiosulphate

13) The cast iron pipes for water supply system are used for ow maintenance cost.

  • A. True
  • B.False

14) What is the maximum permissible hardness for public supplies?

  • A. 105 mg/liter
  • B.115 mg/liter
  • C.125 mg/liter
  • D.None of the above

15) What is the most important method for calculating discharge for planning a water supply project?

  • A. Use of venturi-meter
  • B.Velocity area method
  • C.Weir or spillway method
  • D.Using power plant consumption

16) Air binding is caused due to excessive ........ in a rapid sand filter.

  • A. Pressure
  • B.Turbidity
  • C.Water pressure
  • D.Negative pressure

17) What is the economic diameter of the pipe, If the discharge of a pump is 0.16 cumecs?

  • A. 4.88 m
  • B.48.8 cm
  • C.0.488 m
  • D.None of the above

18) Which of the following joint is used for joining the plain ends of cast iron pipes?

  • A. Flexible joint
  • B.Flanged joint
  • C.Dresser coupling joint
  • D.Socket and spigot joint

19) The most important source of water for public water supply is from Rivers.

  • A. True
  • B.False

20) How much is the diameter of pipes in bathrooms and lavatories in the domestic water supply?

  • A. 18 mm
  • B.12 mm
  • C.16 mm
  • D.14 mm

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