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A straight glacis type fall with a baffle platform and a baffle wall is called_____________? A. vertical dropfall B. glacis fall C. Montague type fallD. inglis fall
In a Sarda type fall, rectangular crest is used for discharge upto______________? A. 6 cumecs B. 10 cumecsC. 14 cumecs D. 20 cumecs
The sensitivity of a rigid module is_______________? A. zero B. between zero and one C. 1 D. infinity
Which of the following canal structures is used to remove surplus water from an irrigation channel into a natural drain ? A. canal fall B. canal outletC. canal escape D. canal regulator
As per Lacey’s theory, the silt factor is_________________? A. directly proportional to average par¬ticle size B. inversely proportional to average par¬ticle sizeC. directly proportional to square root of average particle size D. not related to average particle size
The ratio of average values of shear stresses produced on the bed and the banks of a channel due to flowing water is________________? A. less than 1 B. equal to 1C. greater than 1 D. equal to zero
According to Khosla’s theory, the exit gradient in the absence of a downstream cutoff is_____________? A. 0 B. unityC. infinity D. very large
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 main function of a divide wall is to_______________? A. control the silt entry in the canal B. prevent river floods from entering the canalC. separate the undersluices from weir proper D. provide smooth flow at sufficiently low velocity
If there are two canals taking off from each flank of a river, then there will be____________________? A. one divide wall and one undersluice B. one divide wall and two undersluices C. two divide walls and one undersluiceD. two divide walls and two undersluices