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

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

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Irrigation Engineering
Bligh's theory of seepage assumes

More weightage to horizontal creep than vertical creep
Less weightage to horizontal creep than vertical creep
Equal weightage to the horizontal and vertical creep
Loss of head follows the sine curve

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