CDL Basic Vehicle Control Skills and Backing 5

Question 1

How can you keep a vehicle with a manual transmission from rolling back when you start on a hill?

Accepted Answer

Partly engage the clutch before taking your right foot off the brake

Answer

Partly engaging the clutch before you release the brake gives enough power to hold the vehicle as you start.

Question 2

On a grade, when should you use the parking brake to keep from rolling back?

Accepted Answer

Apply it whenever needed and release it only once the engine has enough power

Answer

Hold the vehicle with the parking brake and release it only when you have engaged enough engine power to keep from rolling back.

Question 3

How should you hold the steering wheel for best control?

Accepted Answer

Firmly with both hands, on opposite sides of the wheel

Answer

Two hands on opposite sides of the wheel give the most control if you hit a bump or a tire blows.

Question 4

How should you brake when stopping normally?

Accepted Answer

Push the brake pedal down gradually, using a controlled amount of pressure

Answer

Smooth, gradual pressure brings the vehicle to a safe stop without skids or shifting the load.

Question 5

Which two ways can you tell it is time to shift gears in a manual transmission?

Accepted Answer

Engine speed (rpm) and road speed (mph)

Answer

Drivers time shifts by watching engine rpm against the right range and by learning the road speed for each gear.

CDL Practice Test