Irrigation Engineering
The aqueduct or superpassage type of works are generally used when

high flood drainage discharge is large and short lived
high flood drainage discharge is small
None of these
high flood drainage discharge is large and continues for a long time

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Irrigation Engineering
A deep well

has more discharge than a shallow well
is always deeper than a shallow well
both (A) and (B)
is weaker structurally than a shallow well

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