Dual tires should not _________ each other.

Dual tires should not _________ each other.

• A. Touch
• B. Overlap
• C. Separate widely
• D. Be mounted on the same axle

Answer: (D)

The key idea is clearance between dual tires. When two tires share the same axle, they must not rub or touch each other. If they come into contact, friction generates heat, which can lead to belt damage, heat buildup, and even a blowout, especially under load, braking, or cornering. To prevent this, ensure proper spacing and alignment so the tires run parallel with even tread wear and the same inflation pressure. Separate wear and handling problems come from any rubbing or misalignment, while mounting dual tires on the same axle is, in fact, how duals are typically set up, not a violation to avoid.

The key idea is clearance between dual tires. When two tires share the same axle, they must not rub or touch each other. If they come into contact, friction generates heat, which can lead to belt damage, heat buildup, and even a blowout, especially under load, braking, or cornering. To prevent this, ensure proper spacing and alignment so the tires run parallel with even tread wear and the same inflation pressure. Separate wear and handling problems come from any rubbing or misalignment, while mounting dual tires on the same axle is, in fact, how duals are typically set up, not a violation to avoid.