What can occur if the lugs on a dumper's tires are severely worn?

Severely worn lugs on a dumper's tires can lead to a significant reduction in traction, steering, and braking abilities. The lugs are designed to provide grip on various surfaces, and when they are worn down, the tire's ability to grip the ground is compromised. This can result in the dumper slipping, making it harder to control, especially in hazardous conditions such as wet or uneven terrain. The impact on steering means that operators may find it challenging to maneuver the dumper accurately, while compromised braking can increase the stopping distance, posing safety risks.

The other options do not accurately reflect the consequences of worn tire lugs. For instance, increased fuel consumption may occur due to poor performance but is not a direct result of tire wear itself. Similarly, improved performance on soft ground and enhanced maneuverability are both unlikely outcomes, as worn lugs detract from the dumper's operational effectiveness.