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

What does a weight-limit sign (e.g., '8t') on a bridge mean for a heavy vehicle driver?

Only vehicles weighing exactly 8 tonnes may use the bridge Vehicles with a gross vehicle mass (GVM) or gross combination mass (GCM) exceeding 8 tonnes must not use the bridge The sign is advisory only — heavy vehicles may cross if they drive slowly Only the front axle mass must be below 8 tonnes

Correct Answer:

Vehicles with a gross vehicle mass (GVM) or gross combination mass (GCM) exceeding 8 tonnes must not use the bridge

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