Civil Engineering MCQs Past Papers

Civil Engineering MCQs Past Papers

Q. A multipurpose reservoir is the one that is

a) designed for one purpose but serves more than one purpose
b) planned and constructed to serve various purposes
c) both (a) and (b)
d) none of the above

  • Lining of irrigation channels

a) increases the waterlogging area
b) decreases the waterlogging area
c) does not change the water logging area
d) none of the above

decreases the waterlogging area
  • If there are two canals taking off from each flank of a river, then there will be

a) one divide wall and one under sluice
b) one divide wall and two under sluices
c) two divide walls and one under sluice
d) two divide walls and two under sluices

two divide walls and two under sluices
  • A repelling groyne is aligned

a) pointing upstream
b) pointing downstream
c) perpendicular to bank
d) parallel to bank

pointing upstream
  • A river training work is generally required when the river is

a) aggrading type
b) degrading type
c) meandering type
d) both (a) and (b)

meandering type
  • Assertion A : Basin walls have to be of much grater height than dock walls.
    Reason R : Tidal basins are subject to fluctuations of levels due to tidal variations.
    Select your answer based on the coding system given below:
    a) Both A and R are true and R is the correct explanation of A.
    b) Both A and R are true but R is not correct explanation of A.
    c) A is true but R is false.
    d) A is false but R is true.
Both A and R are true and R is the correct explanation of A.

Q. Which of the following canal outlets maintains a constant discharge ?

a) non-modular outlet
b) flexible outlet
c) rigid module
d) none of the above

rigid modules
  • When the reservoir is full, the maximum compressive force in a gravity dam is produced

a) at the toe
b) at the heel
c) within the middle third of base
d) at centre of base

at the toe

Q. The uplift pressure on the face of a drainage gallery in a dam is taken as

a) hydrostatic pressure at toe
b) average of hydrostatic pressure at toe and heel
c) two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel
d) none of the above

two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel
  • For wave action in dams, the maximum height of freeboard is generally taken to be equal to

a) 0.5 hw
b) 0.75 hw
c) 1.25 hw
d) 1.50 hw
where hw is height of wave.

Ans: d

1.50 hw
  • Which of the following spillways is least suitable for an earthen dam ?

a) ogee spillway
b) chute spillway
c) side channel spillway
d) shaft spillway

ogee spillway
  • Water content of soil can
    a) never be greater than 100 %
    b) take values only from 0 % to 100 %
    c) be less than 0 %
    d) be greater than 100 %
be greater than 100 %
  • If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is
    a) less than specific gravity of soil
    b) equal to specific gravity of soil
    c) greater than specific gravity of soil
    d) independent of specific gravity of soil
equal to specific gravity of soile]

  • The main function of a divide wall is to

a) control the silt entry in the canal
b) prevent river floods from entering the canal
c) separate the under sluices from weir proper
d) provide smooth flow at sufficiently low velocity

separate the under sluices from weir proper
  1. Silt excluders are constructed on the

a) river bed upstream of head regulator
b) river bed downstream of head regulator
c) canal bed upstream of head regulator
d) canal bed downstream of head regulator

river bed upstream of head regulator

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