What might indicate that the dumper is overloaded?

When a dumper is overloaded, it can lead to a variety of performance issues, with difficulty in braking or a noticeable change in driving performance being primary indicators. An overloaded dumper requires significantly more effort to stop, which can result in longer braking distances and potential safety hazards. Additionally, the added weight can affect how the dumper handles, making it harder to steer and control, particularly on inclines or uneven terrain.

The other options do not directly indicate an overload condition. A shiny exterior may simply be a sign of good maintenance or cleaning, excessive fuel consumption can be caused by many factors not limited to overloading, and low engine noise may indicate an issue with the engine or muffler rather than an overloaded condition.