- (A) less than 1
- (B) equal to 1
- (C) greater than 1
- (D) equal to zero
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- (A) lower level
- (B) higher level
- (C) same level
- (D) any of the above depending on the design
- (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) 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) uniform
- (B) subcritical
- (C) critical
- (D) super critical
- (A) when the permanent wilting point is reached
- (B) when gravity drainage has ceased
- (C) capillary fringe reaches the root zone of plants
- (D) none of the above
- (A) pointing upstream
- (B) pointing downstream
- (C) perpendicular to bank
- (D) parallel to bank
- (A) 1.2 D
- (B) 1.5 D
- (C) 2.0 D
- (D) 2.5 D
- (A) groynes
- (B) construction of dykes or leavees
- (C) both (A) and (B)
- (D) groynes and bandalling
- (A) silting river
- (B) scouring river
- (C) both silting and scouring river
- (D) neither silting nor scouring river
