SURVEYING QUIZ

for storage water

as overflow valves

to guard against water hammer

to increase the velocity in a pipeline

is the time taken, for precipitation

time taken for the storm water to travel from the most remote point to the drain.

time taken for all the ran off to reach the drain

duration of rainfall.

All listed here

Deaths

Migrants

Births

400

450

500

600

Sand

Coarse gravel.

Clay

Silt

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

Velocity of recharging water, increases with 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

6 m

5 m

4 m

3 m

By gravitational system

Both (A) and (B)

By pumping system

All listed here

light in weight and easy to transport

highly resistant to corrosion

very much smooth and hydraulically efficient

All listed here

2.25 m

2.50 m

3.00 m

2 m