Maximum ordinate on a Mass Haul Diagram occurs :
- Aat the end of a cut.Correct
- Bat the end of an embankment.
- Cwhen cut and fill are balanced.
- Dat the midpoint of the cut.
Solution
Concept
Properties of the mass haul diagram
Step-by-step solution
1. In the mass haul diagram the ordinate is the cumulative volume (cut +, fill −). 2. The curve rises through cuts and falls through fills. 3. The maximum ordinate therefore occurs at the end of a cut, where the cut changes to fill.
Explanation
The cumulative earthwork reaches a peak when excavation stops and filling begins. The minimum ordinate occurs at the end of an embankment. The curve crosses the base line where cut and fill balance.
Why the other options are wrong
The end of an embankment gives a minimum ordinate. The curve crosses the zero line (not a maximum) where cut and fill are balanced. The midpoint of the cut is not special.
Shortcut
Peak = cut → fill; valley = fill → cut.
Common mistake
Choosing the balance point.
Correct answer: A) at the end of a cut.