AIR BRAKES PRACTICE TEST - SOUTH DAKOTA

21. Front brake limiting valves were used to:
reduce exhaust emissions.
reduce the chance of the front wheels skidding on slippery surfaces.
prevent overheating of the front tires.
reduce your speed so further braking or shifting is not required.
22. Air brakes use ________ to make the brakes work.
compressed gas cylinders
compressed oil
compressed air
compressed gases
23. Slack adjusters:
are available in four types: manual, automatic, robotic and analog.
should move more than one inch where the push rods attach to them.
regulate the distance that the air brake has to travel to apply friction to the wheel.
regulate the distance between the rear wheels.
24. Typically an air system is fully-charged at:
25 psi
250 psi
75 psi
125 psi
25. Banked curves:
should always be avoided.
can be taken at any speed.
are reserved for pedestrians.
have a safe "design speed".
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