CDL DOUBLES PRACTICE TEST ALABAMA
11.
If an aggressive driver confronts you, you should NOT:
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try to get out of their way.
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make eye contact.
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try to let them pass.
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ignore gestures.
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12.
While crossing railroad tracks, you should:
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shift down.
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not shift gears.
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stop, then look and listen for the train.
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shift up.
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13.
Which of these is more likely to rollover due to the "crack-the-whip" effect?
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The last trailer of doubles
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5-axle tractor semitrailers
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The last trailer of triples
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The front trailer of 65 ft. conventional doubles
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14.
To prevent rollover, you should:
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keep the cargo as close to the ground as possible.
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put the lightest parts of the cargo under the heaviest parts.
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place the cargo near the front of the trailer.
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place the cargo near the rear of the trailer.
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15.
You can release dolly brakes:
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by opening the service line valve.
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by opening the air tank petcock.
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by closing the emergency line valve.
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by closing the air tank petcock.
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16.
You should NOT use the parking brakes if:
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the brakes are very hot.
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the brakes are cold.
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the brakes are too dry.
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All of the above.
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17.
Excessive use of the service brakes results in overheating. Too much heat can:
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make the brakes stop working.
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cause the brakes to squeak.
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cause the brakes to grab.
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cause the brakes apply unevenly.
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18.
An ABS system:
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requires a change in the way you brake.
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helps increase a vehicle's stopping power.
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decreases your stopping distance.
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is a safety anti-skid braking system.
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19.
Most heavy-duty vehicles use:
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hydraulic brakes.
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solid brakes.
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air brakes.
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pressure brakes.
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20.
To avoid becoming an aggressive driver you should:
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speed up if you think you’re going to be late.
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give other drivers the benefit of the doubt.
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make gestures to other drivers.
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give other drivers your full attention.
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