A. at right angle and parallel to weir crest
B. parallel and at right angle to weir crest
C. parallel to weir crest in both
D. at right angle to weir crest in both
Related Mcqs:
- 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 - In a chute spillway, the flow is usually____________________?
A. uniform
B. subcritical
C. critical
D. super critical - In case of non-availability of space due to topography, the most suitable spillway is________________?
A. straight drop spillway
B. shaft spillway
C. chute spillway
D. ogee spillway - In a Sarda type fall, rectangular crest is used for discharge upto______________?
A. 6 cumecs
B. 10 cumecs
C. 14 cumecs
D. 20 cumecs - For supplying water to rabi crop, kharif crop and sugarcane, the channel is designed for a capacity equal to the greater of the water requirement of_______________?
A. rabi or kharif
B. rabi and kharif or sugarcane
C. rabi and sugarcane or kharif and sugarcane
D. rabi or kharif or sugarcane - 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 - When the upstream face of a gravity dam is vertical, then the intensity of water pressure at the water surface and at the base respectively will be_______________?
A. 0 and wH212
B. wH2/2and wH2/3
C. wH and 0
D. OandwIIwhere w is unit weight of water and H is the depth of water
- The normal annual precipitation at stations X, A, B and C are 700 mm, 1000 mm, 900 mm and 800 mm respectively. If the storm precipitation at three station A, B and C were 100 mm, 90 mm and 80 mm respectively, then the storm precipitation for station X will be___________________?
A. 70mm
B. 80mm
C. 90 mm
D. 105 mm - 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 1
C. greater than 1
D. equal to zero - 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 outlet
C. canal escape
D. canal regulator