Water Management Subcategories

Water Management

The total dissolved solids in drinking water should not exceed_________________?

A. 1000 mg/litre
B. 1200 mg/litre
C. 1300 mg/litre
D. 1500 mg/litre

An outlet through which the discharge depends upon the water level in the distributary is called ___________________?

A. Rigid module
B. Flexible module
C. Non-flexible
D. Non-modular

For strong Hydraulic jump containing maximum energy, the down stream glacis should be sloped at a slope of ______________ to dissipate max: energy?

A. 2:1 to 2.5:1
B. 2.5:1 to 3:1
C. 3:1 to 5:1
D. 5:1 to 6

When a weir is constructed, the downstream .bed of the river goes on eroding and consequently causes progressive lowering of the bed on downstream of weir called__________________?

A. Retrogression
B. Lowering down of bed
C. Ponding on down stream
D. All are correct

The water way from a weir is determined by using Lacey’s wetted perimeter i.e. P=_______(Q)1/2 ?

A. 3.50
B. 3.75
C. 4.75
D. 5.75

The aeration of water is done to remove _________________?

A. Odour
B. Smell
C. Colour
D. Taste

A water pool is designed on the down stream of the hydraulic structure to dissipate the energy of falling water by providing a water cushion called ______________________?

A. Water pool
B. Cistern
C. Down stream pond
D. Water cushion

Now- a -days the hydraulic structures are designed. Keeping in view the flow net, this was given by __________________?

A. Blight
B. Khosla
C. Lane
D. Darcy