A. rock toe
B. horizontal blanket
C. impervious cut off
D. chimney drain
A. ogee spillway
B. chute spillway
C. side channel spillway
D. shaft spillway
A. uniform
B. subcritical
C. critical
D. super critical
A. one divide wall and one undersluice
B. one divide wall and two undersluices
C. two divide walls and one undersluice
D. two divide walls and two undersluices
A. control the silt entry in the canal
B. prevent river floods from entering the canal
C. separate the undersluices from weir proper
D. provide smooth flow at sufficiently low velocity
A. lower level
B. higher level
C. same level
D. any of the above depending on the design
A. 0
B. unity
C. infinity
D. very large
A. less than 1
B. equal to 1
C. greater than 1
D. equal to zero
A. directly proportional to average par¬ticle size
B. inversely proportional to average par¬ticle size
C. directly proportional to square root of average particle size
D. not related to average particle size