RI CDL DOUBLES TRIPLES TEST - PRACTICE TEST
11.
To make the brakes work, air brakes use:
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hydraulic air.
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compressed air.
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nitrogen.
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12.
In a combination vehicle, ________ is most likely to turn over.
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the tractor
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the trailer behind the tractor
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the last trailer
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13.
Rollovers happen when drivers:
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turn too slowly.
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turn too fast.
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brake too hard.
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14.
Headache racks:
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can blind other drivers.
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protect you from being hit by your cargo.
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help you keep weights within legal limits.
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15.
Emergency brakes are:
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not required on buses.
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not required on doubles.
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required on all vehicles.
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16.
What is the most important reason to inspect your vehicle?
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Your safety and that of other road users.
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Vehicle inspection is required by federal and state laws.
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Saving money by preventing costly repairs.
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17.
What is Gross Vehicle Weight?
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The total weight of the cargo
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The total weight of a single vehicle, including its load
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The total weight of a single vehicle, excluding its load
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18.
Empty trucks require _____ stopping distances because empty vehicles have ______ traction.
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greater; less
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less; more
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greater; more
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19.
How does ABS help you?
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ABS helps you avoid wheel lock up and maintain control when you brake hard on slippery surfaces.
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ABS makes stab braking more effective.
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ABS replaces your normal brakes and helps you to stop faster.
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20.
Empty trucks:
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require a shorter stopping distance than full trucks.
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require a greater stopping distance than full trucks.
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require the same stopping distance than full trucks.
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