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Class 4 Commercial Driver Practice · Question

Why is it important to check for 'chafing' during a vehicle inspection?

While checking lights is part of every inspection, checking for 'chafing' (rubbing) lines is a specific mechanical check to prevent sudden brake or fluid failur

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Question: Why is it important to check for 'chafing' during a vehicle inspection?

Answer options:

  • To see if the tires are shiny. ✅ To identify wear that could lead to a leak or failure in hoses/wires.
  • To ensure the windows are clean.
  • To check if the fuel cap is tight.

Correct answer: To identify wear that could lead to a leak or failure in hoses/wires.

Explanation: While checking lights is part of every inspection, checking for 'chafing' (rubbing) lines is a specific mechanical check to prevent sudden brake or fluid failure.

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