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.Management Sciences
Category: Irrigation, Water Resources Engineering and Hydrology
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
Generally the weir is aligned at right angles to the direction of the main river current because______________?
A. it ensures less length of the weir
B. it gives better discharging capacity
C. it is economical
D. all of the above
As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at_____________?
A. lower level
B. higher level
C. same level
D. any of the above depending on the design
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
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