SSC JE Civil Engineering 23-Mar-2021 Shift 1 Paper

Explanation:
Given Data:
Formation width = 10 m
Side Slope = 1:2
Central Height = 2 m
Length of formation = 1 km
Total Area of this formation = $\frac{1}{2}$ × [(10+18) × 2]
Total Area of this formation = 28 ${\mathrm{m}}^2$
The quantity of earthwork required for a 1 km length of the formation
= Total Area of this formation x Length of formation
= 28 × (1 × 1000) = 28000 ${\mathrm{m}}^3$
The quantity of earthwork required for a 1 km length of the formation = 28000 ${\mathrm{m}}^3$