FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

The best safeguards against heat buildup in aircraft tires are achieved by implementing practices that help to minimize friction and heat generation. Option B, which includes short ground rolls, slow taxi speeds, minimum braking, and proper tire inflation, is the correct answer because these practices help reduce the amount of heat generated during ground operations. Short ground rolls and slow taxi speeds mean less time for friction to build up heat, while minimum braking reduces the amount of energy converted into heat. Proper tire inflation ensures that the tire is operating within the manufacturer's recommended parameters, which also helps in heat management.

Options A, C, and D are not the best safeguards against heat buildup in aircraft tires for various reasons. High-speed taxiing and quick braking (Option A) actually increase friction and heat in the tires. Frequent tire changes and high-pressure inflation (Option C) may not necessarily reduce heat buildup and could even lead to other issues such as premature wear. Using larger tires and more robust materials (Option D) might help with heat dissipation to some extent, but the best practice is to minimize heat generation in the first place through careful ground operation techniques as outlined in Option B.