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

What could happen if the fifth wheel is not properly greased?

The coupling will be easier to make Increased wear on the fifth wheel and skid plate, and difficulty turning The trailer brakes will not work The landing gear will not retract

Correct Answer:

Increased wear on the fifth wheel and skid plate, and difficulty turning

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