Water Distribution

Q.

Which of the following is not a source of wastewater?

1. Sewers

2. Homes

3. Industries

4. Hospitals

Q. In a wastewater treatment plant, which of the following contaminants can be removed using a bar screen?

1. Oil and grease
2. Grit and pebbles
3. Cans and rags
4. Bacteria and faeces

Q.

Sewage is waste water substance.

1. True
2. False

Q.

Why is distilled water not recommended as potable water?

Q.

Explain the relationship between sanitation and diseases.

Q. Wastewater flowing out of industries, hospitals and offices are collectively called as _________.

1. sludge
2. sewage
3. drainage
4. clarified water

Q.

Potable water always contains small amount of dissolved salts of sodium, calcium and magnesium.

1. True
2. False

Q. In order to get a constant supply of water, wells have to be sunk to reach ____________.

1. The impervipusstrata
2. Permanent water table
3. Dry season water table
4. Wet season water table

Q. tank is used in purification of water, to remove heavy solid impurities by allowing them to settle down at the bottom.

1. Sedimentation
2. Loading
3. Filtration

Q. Which of the following chemicals are used to disinfect water in a wastewater treatment plant?

1. Ozone
2. Chlorine
3. Hydrogen
4. Phosphate

Q.

Which of the following is used to disinfect water?

1. Chlorine

2. Fluorine

3. Sugar

4. Salt

Q. In a wastewater treatment plant, which of the following contaminants can be removed using a bar screen?

1. Oil and grease
2. Grit and pebbles
3. Cans and rags
4. Bacteria and faeces

Q. "Indira Gandhi Canal", which is around 650 km long, provides irrigation facility mainly to which of the following state?

1. Punjab
2. Haryana
3. Rajasthan
4. Gujarat