ACT Heavy Vehicle Knowledge Test Practice Questions - Heavy Vehicle Knowledge Test (Rigid Combination Road Rules Knowledge Test) Exam

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Which tyre condition should a heavy vehicle driver look for during a pre-trip tyre inspection that indicates the tyre must not be used?

Tread depth of 2.5 mm across the full width Tyre has been inflated to the manufacturer's recommended pressure Visible cords, bulges, cuts, or a tread depth below the legal minimum of 1.5 mm Minor scuffs on the sidewall only

Correct Answer:

Visible cords, bulges, cuts, or a tread depth below the legal minimum of 1.5 mm

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