The areas included by contour lines for a proposed dam are given as, Contour (m) 410 420 430 440 450 Area (hectares) 205 120 145 95 135 Calculate the capacity (cubic meter) of the dam by trapezoidal method.

SSC JE Civil Engineering 2018 Set 2 Solved Paper

Question : 126 of 200

Marks: +1, -0

The areas included by contour lines for a proposed dam are given as,

Contour (m)	410	420	430	440	450
Area (hectares)	205	120	145	95	135

Calculate the capacity (cubic meter) of the dam by trapezoidal method.

Solution:

Trapezoidal Method

= d [{(A_1 + A_5 )\/2} + A_2 + A_3 + A_4 ]

Volume =

10 [{(205+135)\/2} + 120 +145 +95] = 5300

hactare.m = 53000000 m

^{3}

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