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.Management Sciences
Category: Water Management
__________% of total global water is saline and available in oceans ?
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A. 95%
B. 96%
C. 97%
D. 97.5%
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
A reference point on the ground of accurately known position which is a () point of leveling is called ________________?
A. Check point
B. Reference point
C. Control point
D. Fixed point
The discharge through rectangular channel is maximum when Hydraulic mean depth m is equal to ______________?
A. depth/ 3
B. depth/ 2
C. depth/ 4
D. 2 / 3 depth
Khosla provided a seepage theory for design of Hydraulic structures called________________?
A. Theory of seepage
B. Method of independent variables
C. Method of cutoffs
D. Creep theory
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
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
The delta the total depth of water consumed by a crop from 1st watering when matures, the delta for rice is___________________?
A. 100cm
B. 120cm
C. 80cm
D. 75cm
Those crops which increase the nitrogen content of the soil and hence the fertility also are called ___________________?
A. Leguminous crops
B. Cash crops
C. Fodder
D. Food crops
According to Khosla’s theory of seepage, the Exit gradient depends upon ____________________?
A. width /depth ratio
B. depth /width ratio
C. Length /depth ratio
D. depth /Length ratio
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