CDL GENERAL KNOWLEDGE TEST (ALABAMA) - PRACTICE TEST
11.
How should you brake if your vehicle loses ABS?
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Stay off the Brake
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Pump the brake repeatedly
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Brake as you always have.
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Step on and off the brake pedal several times
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12.
On wet roads, you must drive slower to be able to stop in the same distance as on a dry road. Reduce speed by about _______ when driving on a wet road.
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one-quarter
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70 percent
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60 percent
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one-third
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13.
Combination vehicles usually require _________ single commercial vehicles.
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more driving skill than
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less driving skill than
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the same level of skill as
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None of the above.
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14.
Emergency brakes are:
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not required on doubles.
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not required on commercial vehicles with air brakes.
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not required on buses.
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required on all vehicles.
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15.
When signaling what you intend to do, you should:
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signal early.
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cancel your signal after you have turned.
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signal continuously.
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All of the above.
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16.
When you get in the vehicle and start the engine, you should:
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put the gearshift in neutral (or park if automatic) before starting the engine.
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make sure the parking brake is on before starting the engine.
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listen for unusual noises after starting the engine.
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All of the above.
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17.
If a load is placed on one side of the trailer:
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your brakes won't work.
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making turns may be easier.
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a rollover is more likely.
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the steering axle weight will be too light to steer safely.
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18.
How many reflective triangles/emergency reflectors should you carry?
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4
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1
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2
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3
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19.
When driving, you should be alert for:
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people who are distracted.
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drivers whose vision is blocked.
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sleepy drivers late at night.
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All of the above.
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20.
Most heavy trucks with manual transmissions require ____ to change gears.
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triple clutching
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double clutching
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single clutching
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None of the above.
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