COMBINATION TEST MAINE - PRACTICE TEST

11. If the ABS is not working:
the vehicle will have weak brakes.
the vehicle will have no brakes.
you still have normal brake functions.
12. When driving trucks with trailers, drivers should:
push the brake pedal to the floor when braking.
make quick lane changes.
avoid making sudden movements with the steering wheel.
13. If you are feeling sleepy, you should:
slow down and drive on the shoulder of the road.
increase your speed to get to the destination quicker.
pull off the road and rest or take a nap.
14. In vehicles with air brakes, the tractor protection valve:
provides the air pressure used to operate trailer brakes.
carries air, which is controlled by the trailer hand brake or the foot brake.
keeps air in the tractor or truck brake system.
15. Never drive with landing gear only part way up. Why?
It must be exactly 5 feet off the ground.
It may be harder to use.
It may catch on railroad tracks.
16. You are inspecting your vehicle during a trip. What should you do?
Use your senses to check for problems.
Check critical items such as tires, brakes, and lights.
All of the above.
17. The emergency air line does NOT:
pump air into the relay valves, allowing the trailer brakes to be applied more quickly.
supply air to the trailer air tanks.
control the emergency brakes on combination vehicles.
18. On any upgrade, gravity:
slows you down.
doubles your speed.
speed you up.
19. Your vehicle has hydraulic brakes. When you press the brake pedal while driving and the pedal goes to the floor, remember that:
pumping the brake pedal may generate enough hydraulic pressure to stop the vehicle.
shifting into neutral may help slow the vehicle.
the parking brake should never used to slow the vehicle.
20. When transporting cargo, the cargo should be checked:
only before the trip.
before the trip and after the first 150 miles.
before the trip and after the first 50 miles.
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