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

Why is it important to visually check that the fifth wheel locking jaws are fully closed around the kingpin?

To ensure smooth turning To prevent the trailer from separating from the tractor while driving To reduce fuel consumption To comply with noise regulations

Correct Answer:

To prevent the trailer from separating from the tractor while driving

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