| In a chute spillway, the flow is usually |
A) Super critical
B) Critical
C) Uniform
D) Subcritical
| Isopiestic lines are the contours |
A) Drawn to represent piezometric surface
B) Drawn to represent piezometric heads
C) Drawn to represent water table
D) None of these
| For efficient working of a control meter, its throat length is approximately kept |
A) Three times the critical depth
B) Twice the critical depth
C) Equal to the critical depth
D) Four times the critical depth
| The shape of recession limb of a hydrograph depends upon |
A) Basin characteristics only
B) Storm characteristics only
C) Both (A) and (B)
D) None of the above
| A land is known as waterlogged |
A) When capillary fringe reaches the root zone of plants
B) When gravity drainage has ceased
C) When the permanent wilting point is reached
D) None of the above
| A hydroelectric scheme operating under a head of 80 m will be classified as |
A) High head scheme
B) Medium head scheme
C) Low head scheme
D) None of the above
| The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are |
A) At right angle to weir crest in both
B) Parallel to weir crest in both
C) At right angle and parallel to weir crest
D) Parallel and at right angle to weir crest
| If there are two canals taking off from each flank of a river, then there will be |
A) Two divide walls and two under-sluices
B) Two divide walls and one under-sluice
C) One divides wall and two under-sluices
D) One divides wall and one under-sluice
| For predicting floods of a given frequency, the best reliable method is |
A) California method
B) Gumbel’s analytical method
C) Unit hydrograph method
D) None of these
| The flow-mass curve is graphical representation of |
A) Cumulative discharge, volume and time in chronological order
B) Discharge and time in chronological order
C) Discharge and time in chronological order
D) Discharge and percentage probability of flow being equalled or exceeded
