CDL General Knowledge TestDriving SafelyMedium
You are driving a commercial vehicle in very hot weather. Which of the following is the most critical check to perform on your tires?
- AEnsuring lug nuts are tightened to specification.
- BInspecting for even tread wear across all tires.
- CChecking tire pressure when tires are cold.
- DMonitoring tire temperature and pressure frequently during the trip.
Show answer & explanationAnswer & explanation
Correct answer: D. Monitoring tire temperature and pressure frequently during the trip.
In hot weather, tires can overheat and pressure can increase significantly, leading to blowouts. Frequent monitoring during the trip is essential to catch and address these issues before they become critical.
Why the other options are wrong
- A. Lug nuts are always important, but not directly related to hot weather tire failure modes like overheating and overpressure.
- B. Even tread wear is important for tire longevity but not the most immediate critical check for hot weather safety.
- C. Checking cold pressure is a pre-trip task, but monitoring during the trip is more critical in hot weather.
Hot Weather Tire Monitoring
In hot weather, frequently monitor tire temperature and pressure during a trip due to increased risk of overheating and blowouts.
- Heat increases tire pressure.
- Overheated tires can lead to blowouts.
- Regular checks prevent catastrophic failures.
Memory trick: Hot weather, hot tires, keep an eye on the Pressure's Fires.