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Question

Difficulty: MediumTire Failure and Blowouts

A commercial motor vehicle's front steering axle tire meets minimum federal safety standards and is legally compliant for highway operation with a measured tread depth of 2/32 inch across all major grooves.

Answer: Answer

Answer

False
Federal Motor Carrier Safety Regulations require a minimum tread depth of 4/32 inch in every major groove on front steering axle tires. The 2/32-inch minimum applies only to non-steering tires, such as those on drive and trailer axles.

Step-by-Step Solution

1
Identify the axle placement and component specified in the statement.
The statement specifically refers to a front steering axle tire.
Commercial motor vehicle safety standards establish different minimum tread depth thresholds based on whether a tire is positioned on a steering axle or a non-steering axle.
2
Compare the stated tread depth against commercial motor vehicle safety regulations.
A measurement of 2/32 inch fails to satisfy the mandatory 4/32-inch minimum requirement for steer tires.
Front steering tires require at least 4/32 inch of tread depth in every major groove to ensure adequate traction, water displacement, and structural integrity against blowouts.
3
Evaluate the regulatory compliance and truth value.
The statement is false because 2/32 inch is an out-of-service violation for front steer tires.
Operating a commercial vehicle on public highways with less than 4/32-inch tread depth on any steer tire violates federal safety regulations.

Key Concept

Minimum Legal Tire Tread Depth Standards for Steer Tires vs. Other Axles
Estimated Time:45s
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Topics

Tire Failure and Blowouts

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