Get App on

Play Store

Civil Engineering Mcqs

The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is__________________?

  • (A)  Vs = 418 (Gs – Gw) d [(3T + 70)/100]
  • (B)  Vs = 418 (Gs – Gw)d² [(3T + 70)/100]
  • (C)  Vs = 218 (Gs – Gw)d² [(3T + 70)/100]
  • (D)  Vs = 218 (Gs – Gw)d [(3T + 70)/100]
Submitted By :Ali Uppal


In the activated sludge process__________________?

  • (A)  Aeration is continued till stability
  • (B)  Aeration is done with an admixture of previously aerated sludge
  • (C)  Sludge is activated by constant stirring
  • (D)  Water is removed by centrifugal action
Submitted By :Ali Uppal


running partially full with central angle , For a circular sewer of diameter__________________?

  • (A)  d/D = ½ (1 – –
  • (B)  a/A
  • (C)  r/R = [1 –
  • (D)  All the above
Submitted By :Ali Uppal


Submitted By :Ali Uppal


Sludge banks are formed if sewage is disposed of in____________________ ?

  • (A)  Rivers
  • (B)  Seas
  • (C)  Lakes
  • (D)  None of these
Submitted By :Ali Uppal


Chlorination of water is done for the removal of____________________?

  • (A)  Bacterias
  • (B)  Suspended solids
  • (C)  Sediments
  • (D)  Hardness
Submitted By :Ali Uppal


Submitted By :Ali Uppal


Submitted By :Ali Uppal


In a grit chamber of a sewage treatment plant ____________________?

  • (A)  Flow velocity 0.15 m to 0.3 m/sec is kept
  • (B)  Depth of 0.9 m to 1.20 m is kept
  • (C)  One minute of detention period is kept
  • (D)  All the above
Submitted By :Ali Uppal


Lead acetate test in sewer manhole is done to test the presence of ____________________?

  • (A)  Methane gas
  • (B)  Hydrogen sulphide
  • (C)  Carbondioxide gas
  • (D)  Diesel vapours
Submitted By :Ali Uppal