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Question

Difficulty: EasyTires, Wheels, and Rims Inspection

Dual tires mounted on a commercial motor vehicle are permitted to touch each other as long as both tires are fully inflated to the manufacturer's recommended pressure.

Answer: Answer

Answer

False. Dual tires must never touch each other or any vehicle components, as friction between contacting tires generates dangerous heat that can cause tire blowouts or fires.
The statement is false. Commercial motor vehicle safety guidelines require that dual tires do not touch each other or any part of the vehicle. Dual tires that touch will rub during transit, producing intense friction and heat that can quickly destroy sidewall integrity and cause tire fires.

Step-by-Step Solution

1
Evaluate commercial vehicle inspection standards regarding dual tire clearance and spacing.
CDL pre-trip inspection rules prohibit dual tires from making direct physical contact with one another.
Clearance between dual tires is necessary to prevent sidewall rubbing during vehicle operation.
2
Identify the safety hazard caused by contacting dual tires.
Contact leads to intense friction and rapid heat accumulation, creating a severe fire and blowout hazard.
Maintaining proper air pressure does not prevent the friction and heat generated when sidewalls rub together.

Key Concept

Dual tire spacing and contact hazards during vehicle inspection
Estimated Time:45s
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Topics

Tires, Wheels, and Rims Inspection

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