The groyne pointing upwards direction of flow is called ______________________?
A. Attracting
B. Repelling
C. Impermeable
D. Permeable
If the weir flood is designed continuous with divide piers as reinforced structure,such that the weight of divide piers, keep the structure safe against uplift, is called__________________?
If the weir flood is designed continuous with divide piers as reinforced structure,such that the weight of divide piers, keep the structure safe against uplift, is called__________________?
A. Non-gravity weir
B. Gravity weir
C. Sharp crested weir
D. Rectangular weir
The rise in river water level at up stream due to construction of weir is called__________________?
The rise in river water level at up stream due to construction of weir is called__________________?
A. Pond level
B. HFL
C. Afflux
D. FSL
Silt free water should be supplied to the canals through______________________?
Silt free water should be supplied to the canals through______________________?
A. Under sluices
B. Head sluices
C. Scouring sluices
D. Sluice gates
The wall of masonry or concrete, constructed at 90° to the axis of weir to separate normal weir from under sluices is called____________________?
The wall of masonry or concrete, constructed at 90° to the axis of weir to separate normal weir from under sluices is called____________________?
A. Divide wall
B. Retaining wall
C. Toe wall
D. All are correct
A fish ladder is device by which flow energy can be dissipated in such a manner as to provide easy access to the downstream fish to come on upstream side, the velocity of flow varies from___________________?
A fish ladder is device by which flow energy can be dissipated in such a manner as to provide easy access to the downstream fish to come on upstream side, the velocity of flow varies from___________________?
A. 2.0 – 2.5 – m/sec
B. 2.5 – 3 m/sec
C. 3.0 – 3.5 m/sec
D. 3.5 – 4.0 m/sec
In high floods, to avoid spilling of flood water over the gates, a wall is provided from pond level to high Flood level. This wall spans for the entire length of regulator, rest on piers, sustain water pressure by its weight called_____________________?
In high floods, to avoid spilling of flood water over the gates, a wall is provided from pond level to high Flood level. This wall spans for the entire length of regulator, rest on piers, sustain water pressure by its weight called_____________________?
A. Retaining wall
B. Divide wall
C. Breast wall
D. Cantilever wall
The structures, which are constructed on the river bed upstream of head regulator. With this clear water enters in canal such structures are called______________________?
The structures, which are constructed on the river bed upstream of head regulator. With this clear water enters in canal such structures are called______________________?
A. Silt excluders
B. Silt ejectors
C. Vortex pipes
D. Silt control structures
The depth before the jump is always less then the depth after the jump. The depth before the jump is called initial depth and depth after the jump is called_______________?
The depth before the jump is always less then the depth after the jump. The depth before the jump is called initial depth and depth after the jump is called_______________?
A. Afflux
B. Final depth
C. Sequent depth
D. Down stream water depth
Mostly the hydraulic structures founded on ____________ soils fails because of undermining and uplift pressure?
Mostly the hydraulic structures founded on ____________ soils fails because of undermining and uplift pressure?
A. Stable
B. Rocky
C. Impermeable
D. Permeable