Examkin

Question

Difficulty: EasyEn-Route and Post-Trip Inspections

During an en-route inspection, if a commercial driver discovers that a tire has become hot and its air pressure has increased, the driver should bleed air from the tire to restore it to the normal cold pressure specification.

Answer: Answer

Answer

False. Drivers must never bleed air from hot tires during an en-route inspection.
The statement is false because releasing air from a hot tire causes the tire to become underinflated as it cools or continues moving, which generates even more internal friction and heat, leading to rapid tread separation or a blowout. The proper procedure is to remain stopped until the tire cools down.

Step-by-Step Solution

1
Analyze the physical behavior of commercial vehicle tires during highway operation.
Air pressure naturally expands and increases as tires heat up from friction and normal travel.
Understanding normal pressure increases prevents unnecessary and unsafe adjustments.
2
Evaluate standard commercial motor vehicle safety procedures regarding hot tires.
Releasing air lowers the actual volume of air, making the tire severely underinflated when it cools or continues rolling.
CDL regulations strictly prohibit bleeding air from hot tires to prevent catastrophic blowouts.

Key Concept

En-route tire heat and pressure management
Estimated Time:45s
Rate this question

Topics

En-Route and Post-Trip Inspections

More questions from this topic