HI CDL DOUBLES TRIPLES TEST - PRACTICE TEST
11.
If you cannot make a right turn without entering another traffic lane, you should:
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turn wide before you start the turn.
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swing wide to the left before starting the turn.
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turn wide as you complete the turn.
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12.
Your vehicle has air brakes. To stop, you should:
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pull the parking brake control knob out.
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push the brake pedal down.
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release the accelerator, push in the clutch, and shift to Neutral at the same time.
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13.
Longer combination vehicles have the tendency to swing wide on turns. This is called:
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off-tracking.
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jackknifing.
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hydroplaning.
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14.
Brake lag is:
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the distance your vehicle will travel, in ideal conditions, while you are braking.
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the amount of air pressure required to stop the vehicle.
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the time required for the air brakes to work after the brake pedal is pushed.
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15.
You hear a loud "bang" which sounds like a tire blowout. You should:
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keep driving as normal.
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assume you
have a tire failure.
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check the tires at the next stop.
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16.
Combination vehicles usually:
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require more driving skill than single CMVs.
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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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17.
You are more at risk of being fatigued:
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when driving alone.
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after getting more than 8 hours of sleep.
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when stopping periodically during long trips.
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18.
When inspecting the coupling, how much space should there be between the upper and the lower fifth-wheel?
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It depends on the trailer
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None.
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½ inch
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19.
The trolley valve should be used only:
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to prevent skids.
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to test the trailer brakes.
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in driving.
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20.
Another name for front-end header boards is:
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containerized racks.
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head belt.
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headache racks.
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