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Which of the following formula can be used to determine the storage when three consecutive sections at equal height are taken?

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+1 vote
in Irrigation Engineering by (75.2k points)
Which of the following formula can be used to determine the storage when three consecutive sections at equal height are taken?

(a) Prismoidal formula

(b) Trapezoidal method

(c) Average formula

(d) Integration method

The question was asked in an interview.

This key question is from Capacity and Area Elevation Curves of a Reservoir Site in section Reservoirs and Dam Reservoirs Planning of Irrigation Engineering

1 Answer

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by (106k points)
Right answer is (a) Prismoidal formula

For explanation: According to the Prismoidal formula,

Storage = h/6 [A1 + 4A2 + A3] where A1, A2, and A3 are the areas of succeeding contours and h is the vertical distance between two alternate contours.

It can be preferably used where three consecutive sections at equal height are taken.

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