MARYLAND CDL AIR BRAKES PRACTICE TEST

16. When a tire fails, you must:
get out and check all the tires after you have come to a stop.
hold the steering wheel firmly.
stay off the brake.
All of the above.
17. You should check air pressure and temperature gauges:
at the beginning of each trip.
at the end of each trip.
as often as is practical.
every time you stop.
18. If the low pressure warning signal doesn't work:
you could lose air pressure and you would know it.
in dual systems the stopping distance will be decreased.
this could cause sudden emergency braking in a single-circuit air system.
None of the above.
19. Before driving a vehicle with a dual brake brake system, the driver should:
allow time for the air compressor to build up a minimum of 100 psi pressure in both the primary and secondary systems.
pump the brake pedal 10 times to build pressure.
wait at least 10 minutes before driving.
wait at least 5 minutes before driving.
20. Which of the following is NOT part of the air brake system?
Emergency brake system
Anti-lock brake system
Service brake system
Parking brake system
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