Technician A says that tire pressures should always be checked when the tires are at operating temperature.Technician B says that the pressure rise that takes place from a cold tire to one at operating temperature is usually around 10% in a truck tire.Who is correct?

Question

Quizplus · Accepted Answer

Tire pressures should be checked when the tires are cold, not at operating temperature, because heat causes the air inside the tire to expand, leading to inaccurate readings. Technician B is correct about the typical pressure rise.

Technician a Says That Tire Pressures Should Always Be Checked