TENNESSEE DOUBLES TRIPLES PRACTICE CDL TEST
11.
Most heavy duty vehicles use ___ air brake systems for safety.
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dual
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triple
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single
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reduced
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12.
Radial and bias-ply tires:
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should be used together only during bad weather.
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should not be used together.
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should be used together.
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should be used together only when driving in packed snow.
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13.
Combination vehicles usually:
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are shorter than single than single CMVs.
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are easier to drive than single than single CMVs.
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require more driving skill than single CMVs.
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All of the above.
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14.
No matter how small the cargo is, it should have at least:
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6 tie-downs.
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1 tie-down.
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2 tie-downs.
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4 tie-downs.
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15.
The service line is also called:
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control line.
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brake line.
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cable line.
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power line.
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16.
What happens when the center of gravity of a truck moves higher up from the road?
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It becomes much easier to downshift at the right rpm.
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The vehicle is more stable while turning.
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The truck becomes easier to turn over.
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It is easier it is to turn around corners.
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17.
When the wheels of a trailer lock up:
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ABS will increase stopping power.
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the trailer will tend to swing around.
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the vehicle will gradually come to a complete stop.
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All of the above.
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18.
You should NOT use the parking brakes if:
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the brakes are cold.
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the brakes are very hot.
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the brakes are too dry.
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All of the above.
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19.
When a combination vehicle goes around a corner:
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the driver must keep the rear of your vehicle far away from the curb.
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the rear wheels of the trailer will never off-track.
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the front and rear wheels follow a different path.
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All of the above.
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20.
When you turn suddenly, which trailer is most likely to turn over?
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The last trailer of triples
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The front trailer
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The rear trailer of doubles
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None of the above.
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