Irrigation Engineering
The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are
i) Water pressure
ii) Self weight
iii) Uplift
iv) Pressure due to earthquake
The correct answer is

Only (ii)
(i), (ii), (iii) and (iv)
(i), (ii) and (iii)
(i), (ii) and (iv)

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Irrigation Engineering
As per Lacey’s theory, the silt factor is

inversely proportional to average par¬ticle size
not related to average particle size
directly proportional to average par¬ticle size
directly proportional to square root of average particle size

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