A. rock toe
B. horizontal blanket
C. impervious cut off
D. chimney drain
✅ The correct answer is option C.
Water Resources Engineering and Hydrology MCQs
The maximum permissible eccentricity for no tension at the base of a gravity dam is__________________?
A. B/2
B. B/3
C. B/4
D. B/6
✅ The correct answer is option D.
The stage of river carrying a discharge of Q m7sec at a point is 10 m and slope of water surface is (1/4000). The discharge of a flood at the same point and same stage of 10 m with a water surface slope of(l/1000) will be________________?
A. V2 Q m3/sec
B. 0.5 Q mVsec
C. 2 Q m3/sec
D. 4 Q m3/sec
✅ The correct answer is option C.
River training for depth is achieved by_______________?
A. groynes
B. construction of dykes or leavees
C. both (A) and (B)
D. groynes and bandalling
✅ The correct answer is option D.
Infiltration rate is always________________?
A. more than the infiltration capacity
B. less than the infiltration capacity
C. equal to or less than the infiltration capacity
D. equal to or more than the infiltration capacity
✅ The correct answer is option C.
If it rains between 2 P.M. and 3 P.M. and the entire basin area just starts contributing water at 3 P.M. to the outlet, then time of concentration will be_____________________?
A. 15 minutes
B. 20 minutes
C. 30 minutes
D. 60 minutes
✅ The correct answer is option D.
Seepage through embankments in an earthen dam is controlled by_______________?
A. drainage filters
B. relief wells
C. drain trenches
D. provision of downstream berms
✅ The correct answer is option C.
With the increase in the quantity of water supplied, the yield of most crops_________________?
A. increases continuously
B. decreases continuously
C. increases upto a certain limit and then becomes constant
D. increases upto a certain limit and then decreases
✅ The correct answer is option D.
Which of the following types of falls use parabolic glacis for energy dissipation ?
A. vertical drop fall
B. glacis fall
C. Montague type fall
D. inglis fall
✅ The correct answer is option C.
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
✅ The correct answer is option D.