QLD Heavy Vehicle Knowledge Test Practice Questions - Queensland Class LR MR HR HC MC Heavy Vehicle Road Rules Knowledge Test Exam

Before uncoupling a trailer, what must be ensured?

The trailer is on a slope facing downhill Trailer park brakes are applied and the area is secure before disconnecting air and electrical lines The engine is revving Only the driver needs to leave the vehicle

Correct Answer:

Trailer park brakes are applied and the area is secure before disconnecting air and electrical lines

Access more questions from this quiz

Continue to QLD Heavy Vehicle Knowledge Test Practice Questions - Queensland Class LR MR HR HC MC Heavy Vehicle Road Rules Knowledge Test Exam for more practice questions and the full quiz experience.

Access More Questions