Question 6422
Tire pressure must be checked periodically; to do this, the tires must be...
- cold.
- balanced.
- hot.
Show answer and explanation
Correct answer: cold.
Cold. After you have driven for a while, the air inside heats up and expands, raising the pressure, so the reading is higher than the actual pressure. Tires are considered cold after the vehicle has been stationary for at least an hour or after driving just 2 or 3 km slowly. Wheel balancing has nothing to do with measuring pressure.