WATER SUPPLY ENGINEERING QUIZ

8.6 mm

7.9 mm

10 mm

7.2 mm

All listed here

The motor may burn out if it is started with empty delivery pipe and with open gate valve

The diameter of the pipe at inlet as well as at outlet, is kept smaller than the delivery pipe

Pump is properly primed before starting

Chlorides

Nitrites

Sulphides

Nitrates

10 times

30 times

20 times

15 times

m³/hour/m²

m³/hour/m²/m

m³/sec

m³/hour

Clay

Silt

Coarse gravel.

Sand

wells

storage reservoirs

infiltration wells

springs

cost of water

All listed here

climatic conditions

size of the city

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

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

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

Velocity of recharging water, increases with depression head

odour

colour

turbidity

bacterias