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

Civil Engineering : Water Supply Engineering - Quiz(MCQ)

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

A)

n + y = r

B)

y + r = n

C)

n + r + y = 0

D)

n + y + r = 1

Correct Answer : y + r = n

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

A)

100 to 250

B)

250 to 500

C)

500 to 750

D)

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____.

A)

intz tank

B)

elevated tank

C)

stand pipe

D)

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_____.

A)

n + y = r

B)

y + r = n

C)

n + r + y = 0

D)

n + y + r = 1

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

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