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Civil Engineering Mcqs

The sludge does not contain waste water from_________________?

  • (A)  Bath rooms
  • (B)  Wash basins
  • (C)  Kitchen sinks
  • (D)  Toilets
Submitted By :Ali Uppal


R.M.O. expenses include___________________?

  • (A)  Running expenses
  • (B)  Maintenance expenses
  • (C)  Operation expenses
  • (D)  All the above
Submitted By :Ali Uppal


1000 kg of sewage contains________________?

  • (A)  0.112 kg in suspension
  • (B)  0.112 kg in solution
  • (C)  0.225 kg in solution
  • (D)  Both
Submitted By :Ali Uppal


For treating the sewage of a large city, you will recommend_________________?

  • (A)  A sedimentation tank and an activated sludge treatment plant
  • (B)  A plant consisting of Imhoff tanks with low rate trickling filters
  • (C)  Sedimentation tanks with high rate trickling filters
  • (D)  None of these
Submitted By :Ali Uppal


The sewer which received discharge from two or more main sewers, is known as_______________?

  • (A)  A trunk sewer
  • (B)  An outfall sewer
  • (C)  A main sewer
  • (D)  An intercepting sewer
Submitted By :Ali Uppal


Hydraulic mean radius is_______________?

  • (A)  Mean radius of sewer
  • (B)  Difference in heads between two points in circular pipes
  • (C)  Mean of radii in a pipe line of varying cross -sections
  • (D)  Cross-sectional area/wetted perimeter
Submitted By :Ali Uppal


Traps_________________?

  • (A)  Are water seals which prevent the entry of foul gases
  • (B)  Are used to trap the rats entering sewers
  • (C)  Dissolve the foul gases
  • (D)  Create symphonic action to increase the quick disposal of sewerage
Submitted By :Ali Uppal


Aerobic bacterias___________________?

  • (A)  Flourish in the presence of free oxygen
  • (B)  Consume organic matter as their food
  • (C)  Oxidise organic matter in sewage
  • (D)  All the above
Submitted By :Ali Uppal


The rate of accumulation of sludge in septic tanks is recommended as____________________?

  • (A)  30 litres/person/year
  • (B)  25 litres/person/year
  • (C)  30 litres/person/month
  • (D)  25 litres/person/month
Submitted By :Ali Uppal


Submitted By :Ali Uppal