AIR BRAKES PRACTICE TEST - MASSACHUSETTS

11. Before leaving your vehicle unattended, you should:
Apply the parking brake.
Remove the keys.
Chock the wheels.
All of the above.
12. An alcohol evaporator is important during:
cold weather.
dry weather.
hot weather.
windy weather.
13. Overloading a vehicle with cargo can have negative effects on all of the following except:
Steering
Speed control
Weight limits
Braking
14. If the spring brakes do not release when you push the trailer air supply control, you should:
check the electrical cables.
check the air line connections.
pump the brakes.
rev or lug the engine.
15. When backing, you should:
back quickly.
back and turn toward the right side whenever possible.
use the mirrors on both sides.
only use mirror on the driver's side.
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More