CDL Air Brakes Practice Test - Rhode Island

11. The tire load rating is stated:
inside the suspension system.
on the side of each tire.
on each axle.
12. Before driving a vehicle with a dual brake brake system, the driver should:
pump the brake pedal 10 times to build pressure.
wait at least 10 minutes before driving.
allow time for the air compressor to build up a minimum of 100 psi pressure in both the primary and secondary systems.
13. If your ABS fails:
the first step is to get the vehicle off the road and stop.
you will still have normal brake functions.
your tires might grab unexpectedly and you could lose control.
14. Axle weight is:
the maximum safe weight your tires can carry at a specified pressure.
the weight of all the axles added together.
the weight transmitted to the ground by one axle or one set of axles.
15. Why should you check your mirrors regularly to know where other vehicles are around you?
To move out of their way if they want to get past.
To flash the brake lights if you are being tailgated.
To know whether you can make a quick lane change in an emergency.
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