Question

The area of a sloping surface of a protective embankment of mean height d, side slopes S: 1 and length L is __________

(a) d x d x s

(b) (d^2 x (ds)^2)^1/2

(c) L.D (1 + s^2)^1/2

(d) 2 L.D (1 + s^2)^1/2

The question was asked by my college director while I was bunking the class.

My question comes from Masonry Platform, Water Tank & Motor Garage in chapter Methods of Building Estimate & Estimate of Building of Civil Engineering Drawing

Answer 1

Correct choice is (c) L.D (1 + s^2)^1/2

Easiest explanation: An embankment dam is a large artificial dam. It is typically created by the placement and compaction of a complex semi-plastic mound of various compositions of soil, sand, clay, or rock. It has a semi-previous waterproof natural covering for its surface and a dense, impervious core. This makes such a dam impervious to surface or seepage erosion. Such a dam is composed of fragmented independent material particles. The friction and interaction of particles binds the particles together into a stable mass rather than by the use of a cementing substance.