Examkin

Question

Difficulty: EasyBrake System Components Inspection

During a pre-trip inspection of drum brake components on a commercial motor vehicle, brake shoe friction linings are considered acceptable and safe for operation as long as they are intact, even if worn to a thickness of less than 14 inch\frac{1}{4}\text{ inch}.

Answer: Answer

Answer

False. Brake shoe friction linings must maintain a minimum thickness of at least 14 inch\frac{1}{4}\text{ inch} to be considered safe and compliant.
The statement is false because commercial motor vehicle safety regulations require drum brake friction linings to have a thickness of at least 14 inch\frac{1}{4}\text{ inch}. Linings worn thinner than this standard are dangerously thin and must be replaced.

Step-by-Step Solution

1
Recall the regulatory wear threshold for commercial vehicle drum brake friction linings.
Drum brake shoe friction linings must be at least 14 inch\frac{1}{4}\text{ inch} thick at the thinnest point.
Linings worn below this measurement risk rivet contact, drum scoring, reduced braking friction, and complete mechanical failure.
2
Evaluate the statement against the minimum thickness safety standard.
The statement asserts that linings thinner than 14 inch\frac{1}{4}\text{ inch} are acceptable if intact, which contradicts CDL inspection criteria.
Operating a commercial vehicle with friction linings below 14 inch\frac{1}{4}\text{ inch} is a safety violation.

Key Concept

Minimum friction lining thickness requirements during drum brake component inspections.
Estimated Time:45s
Rate this question

Topics

Brake System Components Inspection

More questions from this topic