Question

Tech A says that one approved way to clean dust off brakes is with compressed air. Tech B says that some auto parts may contain asbestos. Who is correct?

Option 1: Tech A
Option 2: Tech B
Option 3: Both A and B
Option 4: Neither A nor Bp

Answer 1

Both Tech A and Tech B are correct; however, Tech A's method of using compressed air is outdated due to the health risks of inhaling dust that may contain asbestos. Tech B is right in saying that brake parts may contain asbestos, which is a known hazard.

Step-by-step explanation:

The question pertains to the correct procedures for cleaning brake dust and the potential hazards associated with brake components.

Regarding the use of compressed air for cleaning brake dust, while it was once a common practice, safety regulations have evolved. The Occupational Safety and Health Administration (OSHA) now strongly discourages the use of compressed air for blowing out brake dust because of the potential health risks, especially if the brakes contain asbestos.

Tech A's method is outdated and deemed unsafe due to the risk of inhaling brake dust, which may contain hazardous substances. Tech B is correct in stating that auto parts, specifically older brake components, may contain asbestos, a proven health hazard if inhaled. Thus, car manufacturers and repair shops now often use a wet cleaning method or high-efficiency particulate air (HEPA) vacuuming to safely clean brakes.

Given this information, the correct answer is: Option 3: Both A and B are correct in the context that Tech A is referring to a once accepted method, while Tech B is correct about the potential asbestos content.