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231.

Under steady low heads

reciprocating

centrifugal

232.

For high and fluctuating heads

reciprocating

centrifugal

233.

The capacity of the pumps is normally expressed as

A.	litres per minute	B.	cubic metres per day
C.	thousands of litres per hour	D.	all of these

234.

For an area developed in haphazard way, the type of layout used for the distribution of pipes is known as

A.	dead end system	B.	ring system
C.	radial system	D.	grid iron system

235.

Which of the following statement is wrong?

A.	A check valve is provided on the delivery side in between the pump and the gate valve.	B.	A pressure relief and air valve are provided on the delivery side.
C.	Scour valves are provided at high points	D.	all of the above

236.

The suitable layout of a distribution system for well planned cities is

A.	dead end system	B.	ring system
C.	radial system	D.	grid iron system

237.

For a city or town with roads of rectangular pattern, the type of layout used for the distribution of pipes is

A.	dead end system	B.	ring system
C.	radial system	D.	grid iron system

238.

For a well planned city, we whall use the grid iron system for the distribution of pipes.

Right

Wrong

239.

Garbage is a

A.	dry waste	B.	semi-liquid waste
C.	liquid waste	D.	none of these

240.

The water from kitchens, bathrooms, wash basins is called

A.	sewage	B.	sullage
C.	raw sewage	D.	none of these