ME CDL COMBINATION PRACTICE TEST
11.
ABS:
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is an addition to your normal brakes.
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should only be used on dry roads.
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allows you to brake harder.
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12.
Emergency lines on combination vehicles are often coded with the color ____ to keep from getting them mixed up with the ____ service line.
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blue; red
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yellow; black
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red; blue
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13.
When backing a truck you should:
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always rely on your mirrors.
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look straight ahead.
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get out and walk around the vehicle before you begin to back.
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14.
The best way to recognize that your trailer has started to skid is:
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by seeing it in your mirrors.
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by feeling the brakes come on.
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by recognizing tire failure.
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15.
When driving at night you should:
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always use low beams.
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use your high beams when it is safe and legal to do so.
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All of the above.
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16.
Combination vehicles usually require _________ single commercial vehicles.
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more driving skill than
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the same level of skill as
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less driving skill than
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17.
Who is responsible for inspecting the cargo?
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The shipper
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The driver
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The person who loaded and secured the cargo
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18.
The best way to recognize that your trailer has started to skid is:
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by seeing it in your mirrors.
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by using retarders.
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by hearing squeaking noises from the wheels.
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19.
To test the tractor-semitrailer connection for security:
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check that the trailer is locked onto the tractor by pulling the tractor gently forward while the trailer brakes are still locked.
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plug the electrical cord into the trailer and fasten the safety catch.
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pull out the air supply knob.
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20.
How do you find out how many seconds of following distance you have?
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Pass a stationary object and count how many seconds it takes the vehicle ahead of you to reach the same spot.
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Wait until the vehicle ahead of you passes a pavement marking, shadow or landmark. Then count off the seconds until you reach the same spot.
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Wait until the vehicle ahead of you passes a pavement marking or some other clear landmark, then use the stopwatch on your mobile phone to see how long it takes you to reach the same spot.
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