A bulldozer operator is instructed to move approximately 150 cubic metres of loose granular material over a distance of 30 metres. If the goal is to maximize efficiency and minimize spillage, which blade pitch adjustment would be most appropriate for carrying the load?

Question: A bulldozer operator is instructed to move approximately 150 cubic metres of loose granular material over a distance of 30 metres. If the goal is to maximize efficiency and minimize spillage, which blade pitch adjustment would be most appropriate for carrying the load?

Answer options: ✅ Maximum heel down (blade forward)

• Slight toe down (blade backward)
• Blade perpendicular to the travel path
• Blade angled fully to one side

Correct answer: Maximum heel down (blade forward)

Explanation: For carrying and pushing loose material, tilting the blade forward (heel down) creates a larger 'bowl' effect, increasing the blade's carrying capacity and reducing spillage, enhancing efficiency over short to medium hauls. This is a common technique taught in IUOE 793 training.