WATER SUPPLY ENGINEERING QUIZ

Air valves

Sluice valves

None of these

Pressure relief valves

m³/hour/m²

m³/hour/m²/m

m³/sec

m³/hour

All the above.

Mineral acids

Free CO₂

Aluminium sulphate

Nitrites

Chlorides

Sulphides

Nitrates

using thicker pipes

reducing the flow velocity

using screens having larger area of openings

reducing the draw down and the pumping rate

Velocity of recharging water, increases with depression head

Depression head resulting at critical velocity, is called critical depression head

Maximum safe yield of an open well, is expected at critical depression head

Working head is generally limited to ?rd of the critical depression head

All listed here

Migrants

Births

Deaths

Screening

None of these

Filtration

Sedimentation

as overflow valves

to guard against water hammer

for storage water

to increase the velocity in a pipeline

springs

wells

infiltration wells

storage reservoirs