1.
When approaching a vehicle with a distracted driver, you should:
quickly pass the vehicle.
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sound your horn.
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maintain your safe following distance.
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change lanes quickly.
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2.
Combination vehicles usually require _________ single commercial vehicles.
less driving skill than
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more driving skill than
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the same level of skill as
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None of the above.
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3.
If the safety relief valve in the air brake system releases air:
the valve is fully operational.
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this will supply more power to the drive wheels.
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this will supply more power to the brakes.
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something is wrong.
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4.
When inspecting the cargo, make sure it is:
piled up.
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secured properly for the first 50 miles after beginning a trip.
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not overloaded.
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All of the above.
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5.
Which of the following is NOT a way to determine if your trailer is equipped with ABS (antilock braking system)?
The letters "ABS" are printed on the side of the steering wheel.
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Wheel speed sensor wires are coming from the back of the brakes.
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It was built after March 1, 1998.
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It has yellow ABS malfunction lamps.
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6.
When backing a tractor under a trailer, you should:
always use the lowest reverse gear.
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back at an angle.
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stop before when the kingpin is locked into the fifth wheel.
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All of the above.
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7.
When parking a trailer without spring brakes, it is very important for safety that you use wheel chocks. Why?
You may not notice a major leak in the service line until you try to put the brakes on.
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if you don't use wheel chocks, supply air will be sent to the service line instead of going to charge the trailer air tanks.
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The air could leak out of the trailer air tank, releasing its emergency brakes.
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None of the above.
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8.
Containerized loads:
must be inspected before and after the trip.
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are generally used for freight carried part way by rail or ship.
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should exceed gross weight and axle weight limits.
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All of the above.
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9.
The front trailer supports are up, and the trailer is resting on the tractor. Make sure:
there is enough clearance between the rear of the tractor frame and the landing gear.
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All of the above.
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there is enough clearance between the top of the tractor tires and the nose of the trailer.
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None of the above.
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10.
What are the two basic reasons for covering cargo?
To protect people from spilled cargo and the cargo from pilferage.
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To protect people from spilled cargo and the cargo from weather.
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To protect the cargo from weather and to avoid littering.
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To protect the cargo from pilferage and from weather.
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