For a proportional outlet, the flexibility is______________?
(A) zero
(B) between zero and 1
(C) 1
(D) greater than 1
If the critical shear stress of a channel is xc, then the average value of shear stress required to move the grain on the bank is___________________?
(A) 0.5 xc
(B) 0.75 TC
(C) xc
(D) 1.33 TC
Which of the following is a flexible outlet ?
(A) submerged pipe outlet
(B) Kennedy’s gauge outlet
(C) Gibb’s outlet
(D) none of the above
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
Which of the following can be used as a meter fall ?
(A) vertical drop fall
(B) flumed glacis fall
(C) unflumed glacis fall
(D) all of the above
Horizontal acceleration due to earthquake results in______________?
(A) hydrodynamic pressure
(B) inertia force into the body of the dam
(C) both (A) and (B)
(D) none of the above
The major resisting force in a gravity dam is___________________?
(A) water pressure
(B) wave pressure
(C) self-weight of dam
(D) uplift pressure
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
As compared to gravity dams, earthen dams__________________?
(A) are costlier
(B) are less susceptible to failure
(C) require sound rock foundations
(D) require less skilled labour
Seepage through embankments in an earthen dam is controlled by_______________?
(A) drainage filters
(B) relief wells
(C) drain trenches
(D) provision of downstream berms