SSC JE Civil Engineering 2018 Set 1 Solved Paper

Question : 119 of 200

Marks: +1, -0

The cross section areas of three sections of an embankment at an interval of 40 m are 10 square metres, 15 square metres and 35 square metres. Calculate the quantity of earthwork for the embankment. Use prismoidal method.

1200
1400
1500
2400

Validate

Solution:

Prismoidal formula for volume (V)
=

d/3 [(A_1 + A_n ) + 4(A_2 + A_4 +....)

+ 2 (A_3 + A_5 + ..)]

V=40/3 [(10+35)+4(15)]

V = 1400 \m^3

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