WATER SUPPLY ENGINEERING QUIZ

When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied

Both (A) and (B)

By pumping system

By gravitational system

All listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

The fire demand of a city may be worked out by

Kuichling’s formula

Freeman formula

Bustan’s formula

All listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

Turbidity of raw water is a measure of

Acidity of water

Suspended solids

O.D

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be

15

10

5

nil

TRUE ANSWER : ?
YOUR ANSWER : ?

The factor affecting per capita demand, is

climatic conditions

size of the city

All listed here

cost of water

TRUE ANSWER : ?
YOUR ANSWER : ?

In pressure supply mains, water hammer pressure is reduced by providing

Air valves

None of these

Sluice valves

Pressure relief valves

TRUE ANSWER : ?
YOUR ANSWER : ?

In centrifugal pump installation,

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

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

All listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

While determining the yield of open wells by the pumping test

Velocity of recharging water, increases with depression head

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

TRUE ANSWER : ?
YOUR ANSWER : ?

Mathamoglobinemia or blue baby disease is caused due to

Chlorides

Nitrites

Nitrates

Sulphides

TRUE ANSWER : ?
YOUR ANSWER : ?

The least thickness of class B cast iron (spun) pipe, is

7.9 mm

10 mm

8.6 mm

7.2 mm

TRUE ANSWER : ?
YOUR ANSWER : ?