Which of the following is true about checking tire pressure?

Prepare for the Maine CDL Test with comprehensive flashcards and a variety of questions, each with helpful hints and explanations. Ace your exam with confidence!

Tire pressure should be checked when tires are cold for accurate readings because the pressure in tires increases as they heat up from driving. When tires are warm, the air inside expands, leading to a higher pressure that does not reflect the true condition of the tires. Checking them when they are cold—typically at least three hours after driving—ensures that the measurement is accurate and not skewed by heat from recent use. This practice helps maintain optimal tire performance, enhances safety, and improves fuel efficiency by ensuring that the tires are inflated to the manufacturer-recommended levels.

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