Water Supply Engineering MCQs

Option A: 50 litres

Option B: 65 litres

Option C: 85 litres

Option D: 105 litres

Correct Answer: 135 litres ✔

Option A: 1880 kilo litres

Option B: 2880 kilo litres

Option C: 3880 kilo litres

Option D: 4880 kilo litres

Correct Answer: 2880 kilo litres ✔

Option A: odour

Option B: colour

Option C: bacterias

Option D: hardness

Correct Answer: odour ✔

Option A: odour

Option B: bacterias

Option C: turbidity

Option D: colour

Correct Answer: bacterias ✔

Option A: 2 m

Option B: 2.25 m

Option C: 2.50 m

Option D: 2.75 m

Correct Answer: 3.00 m ✔

Option A: is the time taken, for precipitation

Option B: duration of rainfall.

Option C: time taken for all the ran off to reach the drain

Option D: time taken for the storm water to travel from the most remote point to the drain

Correct Answer: time taken for the storm water to travel from the most remote point to the drain ✔

Option A: 60 mg/litre

Option B: 75 mg/litre

Option C: 100 gm/litre

Option D: 150 mg/litre

Correct Answer: 60 mg/litre ✔

Option A: Mineral acids

Option B: Free CO2

Option C: Iron sulphate

Option D: Aluminium sulphate

Correct Answer: All the above ✔

Option A: reducing the draw down and the pumping rate

Option B: reducing the flow velocity

Option C: using thicker pipes

Option D: using screens having larger area of openings

Correct Answer: using screens having larger area of openings ✔

Option A: 2 m

Option B: 3 m

Option C: 4 m

Option D: 5 m

Correct Answer: 6 m ✔

Option A: Darcy’s formula

Option B: Slichter’s formula

Option C: Hazen’s formula

Option D: Lacy’s formula

Correct Answer: Darcy’s formula ✔

Option A: Clay

Option B: Sand

Option C: Silt

Option D: Coarse gravel

Correct Answer: Coarse gravel ✔

Option A: size of the city

Option B: climatic conditions

Option C: pressure in water mains

Option D: cost of water

Correct Answer: all the above ✔

Option A: Boarding schools

Option B: Nurses home and medical quarters

Option C: hostels

Option D: all the above

Correct Answer: all the above ✔

Option A: wells

Option B: springs

Option C: infiltration wells

Option D: storage reservoirs

Correct Answer: storage reservoirs ✔

Option A: 1500 m

Option B: 1505 m

Option C: 1475 m

Option D: 1485 m

Correct Answer: 1485 m ✔

Option A: 7.2 mm

Option B: 7.9 mm

Option C: 8.6 mm

Option D: 10 mm

Correct Answer: 8.6 mm ✔

Option A: calcium sulphate

Option B: magnesium sulphate

Option C: calcium nitrate

Option D: calcium bicarbonate

Correct Answer: calcium bicarbonate ✔

Option A: light in weight and easy to transport

Option B: highly resistant to corrosion

Option C: high flexible to accommodate deflection upto 12°

Option D: very much smooth and hydraulically efficient

Correct Answer: all the above ✔

Option A: lower point

Option B: higher point

Option C: junction points

Option D: any where

Correct Answer: lower point ✔

Option A: nil

Option B: 5

Option C: 10

Option D: 15

Correct Answer: nil ✔

Option A: for storage water

Option B: to increase the velocity in a pipeline

Option C: as overflow valves

Option D: to guard against water hammer

Correct Answer: to guard against water hammer ✔

Option A: 7 years

Option B: 14 years

Option C: 21 years

Option D: 28 years

Correct Answer: 35 years ✔

Option A: helps growth of bacterias

Option B: impedes growth of algae

Option C: increases dissolved oxygen content

Option D: reduces turbidity

Correct Answer: impedes growth of algae ✔

Option A: 10 times

Option B: 15 times

Option C: 20 times

Option D: 30 times

Correct Answer: 30 times ✔

Option A: Kuichling’s formula

Option B: Freeman formula

Option C: Under Writers formula

Option D: Bustan’s formula

Correct Answer: All the above. ✔