WATER & WASTEWATER QUIZ

Which portion of WWTP retains large objects like rags, sticks, etc.?

• Sludge

• Sedimentation tank

• Bar Screen

• Sewerage

Which day of the year is celebrated as Water Day?

• 26 March

• 15 April

• 22 April

• 22 March

Name the scraper that removes solids like forced from the wastewater.

• Skimmer

• Sludge

• Tank

• Bar Screen

The process of seeping water into the ground is called

• aquifer

• infiltration

• water cycle

• depletion

The ground water-bearing layer of the earth which is below the water table is?

• Water Table

• Sea level

• Aquifer

• None of these

The traditional way of collecting water was

• bawaris

• well

• river

• none of these

Which of the following is the step of wastewater treatment?

• Chlorination

• Aeration

• Filtration

• All of the following

This method of irrigation can minimise wastage of water:

• irrigation by pipes

• irrigation by drip

• irrigation by channels

• none of these

The aerobic bacteria can be grown in clarified water by

• filtration

• sewage

• aeration

• sedimentation

Which of the following is not an inorganic impurity present in sewage?

• Nitrate

• Phosphorus

• Urea

• Metal