Disinfection of water with ozone is not good because_______.

Civil Engineering : Water Supply Engineering - Quiz(MCQ)

it adds taste to the water

it is more efficient than chlorine in killing bacterias

it vanishes before water reaches the consumers

it removes the colour, taste and odour from water as bacterias

Correct Answer : it is more efficient than chlorine in killing bacterias

Recently Updated in Water Supply Engineering Questions

Normal values of overflow rate for plain sedimentation tanks in litres/hr/m², generally range between

100 to 250

250 to 500

500 to 750

750 to 1000

Correct Answer : Option (C) : 500 to 750

When gravity and pumping systems of water distribution are adopted, the type of distribution reservoir, is____.

intz tank

elevated tank

stand pipe

ground source reservoir

Correct Answer : Option (B) : elevated tank

If n is porosity, y is specific yield and r is specific retention of any soil, the relationship which holds good, is_____.

n + y = r

y + r = n

n + r + y = 0

n + y + r = 1

Correct Answer : Option (B) : y + r = n