AZ CDL COMBINATION PRACTICE TEST
11.
If your truck has automatic transmission, you should downshift:
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after entering a curve.
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whenever road conditions allow.
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when going down grades.
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12.
When should you use chocks to park a trailer without spring brakes?
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Only when parking downhill
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Always
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Never
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13.
Tests have shown that trucks with a high center of gravity are more likely to tip over, therefore you should:
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distribute the cargo as low as possible.
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put the lightest parts of the cargo under the heaviest parts.
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All of the above.
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14.
When you use your mirrors while driving on the road, you should:
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avoid checking them regularly.
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check them quickly.
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only use the driver's side mirror.
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15.
Combination vehicles _________ than single CMVs.
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are safer in bad weather
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require more driving skill
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are much easier to drive
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16.
If your trailer starts to skid, you should:
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release the brakes.
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pump the brakes.
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steer in the opposite direction.
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17.
If you have a manual transmission, when stopping don't _______ until the engine rpm is down close to idle.
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push the clutch in
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place the transmission in park
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shift to second gear
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18.
Empty trucks:
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may have poor traction.
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require shorter stopping distances than fully-loaded trucks.
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have better traction than fully-loaded trucks.
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19.
If a drawbridge does not have a signal light or traffic control attendant, you should:
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stop and look to make sure the draw is completely closed before crossing.
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drive through the drawbridge with caution.
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stop at least 5 feet before the draw of the bridge.
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20.
When checking the air and electric lines to the trailer, be sure that the air lines are properly connected to the gland hands, and are:
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secured with enough slack for turns.
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properly greased.
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secured with enough air leaks for turns.
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