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Civil Engineering Mcqs

In chlorination, with the rise in temperature of water, death rate of bacteria____________?

  • (A)  increases
  • (B)  decreases
  • (C)  remains unaffected
  • (D)  none of the above
Submitted By :Ali Uppal


The suitable method for disinfection of swimming pool water is________________?

  • (A)  ultra violet rays treatment
  • (B)  lime treatment
  • (C)  by using potassium permanganate
  • (D)  chlorination
Submitted By :Ali Uppal


Most suitable section of sewer in separate sewage system is________________?

  • (A)  rectangular section
  • (B)  circular section
  • (C)  standard form of egg shaped sewer
  • (D)  modified egg shaped section
Submitted By :Ali Uppal


The minimum and maximum diameters of sewers shall preferably be_________________?

  • (A)  15 cm and 100 cm
  • (B)  15 cm and 300 cm
  • (C)  30 cm and 450 cm
  • (D)  60 cm and 300cm
Submitted By :Ali Uppal


The design discharge for the separate sewer system shall be taken as_____________?

  • (A)  equal to dry weather flow (DWF)
  • (B)  2xDWF
  • (C)  3 x DWF
  • (D)  6xDWF
Submitted By :Ali Uppal


The self cleansing velocity for all sewers in India is usually_________________?

  • (A)  less than 1.0 m/sec
  • (B)  1.0 m/sec to 1.2 m/sec
  • (C)  1.5 m/sec to 2.0 m/sec
  • (D)  3.0 m/sec to 3.5 m/sec
Submitted By :Ali Uppal


The time of concentration is defined as_______________?

  • (A)  the time taken by rainfall water to run from most distant point of water shed to the inlet of sewer
  • (B)  the time required for flow of water in sewer to the point under consideration
  • (C)  sum of (A) and (B)
  • (D)  difference of (A) and (B)
Submitted By :Ali Uppal


The water carriage system of collection of waste product________________?

  • (A)  is cheaper in initial cost than dry conservancy system
  • (B)  requires treatment before disposal
  • (C)  creates hygenic problem
  • (D)  all of the above
Submitted By :Ali Uppal


Which of the following sewers is preferred for combined system of sewage ?

  • (A)  circular sewer
  • (B)  egg shaped sewer
  • (C)  rectangular sewer
  • (D)  none of the above
Submitted By :Ali Uppal


Average rate of water consumption perhead per day as per Indian Standard is______________?

  • (A)  100 litres
  • (B)  135 litres
  • (C)  165 litres
  • (D)  200 litres
Submitted By :Ali Uppal