Practice question

What is best before descending a grade?

Use trailer hand valve continuously
Coast in neutral
Wait to downshift until overspeed
Select a safe speed and proper gear before the downgrade

Answer: D — Select a safe speed and proper gear before the downgrade

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: California CDL Combination Vehicles Test Practice Questions - California Commercial Driver License Combination Vehicles Test Exam →