Question

A flexible rubber brake line is being inspected.

Technician A says small blisters in the rubber are acceptable if they are not leaking.
Technician B says that small cracks in the rubber require replacement of the hose.
Who is correct?

Answer 1

Technician B is correct, indicating that small cracks in the rubber brake line require replacement to ensure safety. Small blisters may be a sign of future issues and should be taken seriously.

Step-by-step explanation:

When inspecting a flexible rubber brake line, any form of damage can potentially lead to brake failure, which is a serious safety concern. Technician B is correct; small cracks in the rubber of a brake hose are a sign of wear and can lead to failure, therefore they require replacement of the hose. While Technician A might suggest that small blisters are acceptable if not leaking, this could be risky as they can indicate the onset of future leaks or bursts, and it's generally safer to replace a damaged hose to maintain the integrity of the braking system.