1. When the reduced level of the water source is higher than the reduced level of the consumer’s place, water is generally supplied _____.

[A] By gravitational system
[B] By pumping system
[C] Both
[D] None

Answer: Option A

2. Specific capacity or yield of wells, is generally expressed, as _____.


Answer: Option B


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

[A] Air valves
[B] Pressure relief valves
[C] Air valves
[D] All of the above

Answer: Option B

4. Turbidity of raw water is a measure of ______.

[A] Acidity of water
[B] B.O.D
[C] Suspended solids
[D] None

Answer: Option C


5. Surcharge storage zone of a reservoir is _____.

[A] Between dead storage and useful storage
[B] Also known as valley storage
[C] Below dead storage
[D] Above useful storage

Answer: Option D


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