WISCONSIN CDL AIR BRAKES PRACTICE TEST
16.
If you must make an emergency stop, you should:
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brake in a way that will keep your vehicle in a straight line.
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use the hand brake before the brake pedal.
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apply the brakes as hard as you can to lock them.
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None of the above.
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17.
The braking power of the spring brakes:
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is not affected by the condition of the service brakes.
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is not affected by the air pressure level.
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depends on the brakes being in adjustment.
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All of the above.
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18.
The most common foundation brakes found on vehicles with air brakes are the:
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S-cam brakes.
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parking brakes.
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wedge brakes.
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disc brakes.
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19.
In combination vehicles with air brakes, the trailer air supply control should pop out when the air pressure falls within the range of:
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50 to 75 psi
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10 to 20 psi
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20 to 45 psi
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100 to 120 psi
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20.
Overloading a vehicle with cargo can have negative effects on all of the following except:
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Steering
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Weight limits
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Braking
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Speed control
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