Class 3 Theory Test Practice Questions - NZTA Class 3 Heavy Vehicle Theory Test - Medium Combination Exam

After coupling a semi-trailer, what checks should be performed on the air line connections?

No checks are needed if the lines are connected Check for air leaks at the gladhand connections and ensure lines are not kinked or damaged Only check if the brakes feel soft Check only that the lines are the correct colour

Correct Answer:

Check for air leaks at the gladhand connections and ensure lines are not kinked or damaged

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