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