You discover a significant fuel leak (approximately 0.5 litres per hour) during an initial pre-operational check of a compact track loader at a residential development site. What is your immediate action and primary concern?

Question: You discover a significant fuel leak (approximately 0.5 litres per hour) during an initial pre-operational check of a compact track loader at a residential development site. What is your immediate action and primary concern?

Answer options:

• Place a drip tray underneath and monitor the leak throughout the day, noting fuel consumption.
• Attempt to tighten the hose clamp and if it stops, proceed with operation. ✅ Immediately shut down the machine if running, contain the spill if possible, report the defect, and tag out the equipment.
• Determine the exact source of the leak and if it's external to the engine, continue operation carefully.

Correct answer: Immediately shut down the machine if running, contain the spill if possible, report the defect, and tag out the equipment.

Explanation: A significant fuel leak poses immediate fire and environmental hazards. The primary concern is safety and environmental protection. The machine must be shut down, the spill contained, reported, and the equipment taken out of service until repaired. (OHS regulations, Environmental Protection Acts)