Class A CDL Pre-Trip Inspection 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What should a driver check on the air pressure gauge during a pre-trip inspection?

Ensure the gauge is functioning correctly

Verify that the pressure is within operational limits

During a pre-trip inspection, it is essential for a driver to verify that the air pressure gauge indicates that the pressure is within operational limits. This check is crucial because the air pressure in the system is vital for the proper functioning of brakes and other air-operated components. If the pressure falls below the required level, it can lead to brake failure or reduced performance of the vehicle, posing safety risks on the road.

Maintaining the correct air pressure ensures that the brake system operates effectively and maintains optimal stopping power, which is crucial for safety during driving. Any deviations from the manufacturer's specified pressure can signify problems that need immediate attention before the vehicle is operated. Therefore, the focus on verifying the pressure helps ensure that the vehicle is roadworthy and safe to drive.

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Check for leaks in the air lines

Inspect the gauge for physical damage

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