MISSOURI CDL AIR BRAKES PRACTICE TEST

16. Front brake limiting valves were used to:
reduce your speed so further braking or shifting is not required.
reduce the chance of the front wheels skidding on slippery surfaces.
prevent overheating of the front tires.
17. While driving, you should use your mirrors to:
check where the rear of your vehicle is while you make turns.
know where other vehicles are around you.
All of the above.
18. Stepping on and off the brake pedal several times:
may result in dangerously thin linings.
may cause air leaks.
reduces the air pressure in the tanks.
19. Your vehicle has a dual air brake system. If one air system is very low on pressure, you should:
bring the vehicle to a safe stop, and have the air brakes system fixed.
reduce your speed and check the low air pressure warning signal for the other system regularly.
call your dispatcher or supervisor for instructions.
20. Too little weight on the driving axles can cause:
poor traction.
longer stopping distances.
mechanical damage.
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