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Arizona
Arizona CDL Combination 1
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Q.1
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When coupling, after you've connected the air lines to the trailer, you should:
Supply air to the trailer.
Activate the emergency brake.
Disconnect the glad hands.
Q.2
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Keeping cargo centered on a rig can:
Help you drive faster.
Prevent a rollover.
Make turns more dangerous.
Q.3
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Which of the following will not help prevent a rig from rolling over?
Keeping the cargo as close to the ground as possible
Driving slowly around turns
Driving on the shoulder of a road
Q.4
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A driver should test the tractor protection valve by:
Pulling the yellow, diamond-shaped knob.
Releasing air with the brake pedal.
Unlocking the trailer doors.
Q.5
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How much space should be between the upper and lower fifth wheel?
About five inches of space
A maximum of two inches of space
No space
Q.6
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A trailer that is too high:
May not couple correctly.
Will couple securely.
Is not an issue.
Q.7
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The best way to recognize that your trailer has started to skid is by:
Seeing other drivers' faces.
Checking the trailer in your mirrors.
Feeling the trailer move.
Q.8
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During a trip, the ____ should be open.
Rear service line shut-off valve
Rear supply line shut-off valve
Inner shut-off valves
Q.9
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During a trip, landing gear should be:
Completely raised.
Completely lowered.
Skimming the pavement.
Q.10
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When you are pulling a trailer, the air supply control lever should be in its ____ position.
Emergency
Supply
Normal
Q.11
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Fully-loaded rigs:
Usually are very responsive to steering.
Are more likely to roll over than empty rigs.
Can stop quickly.
Q.12
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Combination vehicles:
Are usually shorter than single commercial vehicles.
Usually require less skill to drive than single commercial vehicles.
Usually require more skill to drive than single commercial vehicles.
Q.13
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If you are backing and become unsure about your path of travel, you should:
Continue backing.
Stop and get out to look.
Continue backing, but more slowly than before.
Q.14
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More than half of all accident-related truck driver deaths are caused by:
Rollovers.
Slippery roads.
Other drivers.
Q.15
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Watching the road ahead:
Is more dangerous than only watching your mirrors.
Does not help you drive more safely.
Can help you avoid the need for sudden lane changes.
Q.16
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Before a trip, you can make sure air flows to all trailers by:
Checking for moving air inside of each trailer.
Listening for air at the rear shut-off valve.
Feeling for air at the front shut-off valve.
Q.17
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Combination vehicles:
Often have taller trailers than single commercial vehicles.
Are usually lighter than single commercial vehicles.
Require more skill to drive than single commercial vehicles.
Q.18
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When coupling:
You can assume all vehicles are the same.
Be sure that you are coupling correctly.
Cracks in the mounting are acceptable.
Q.19
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Bobtail tractors are ____ to stop than tractors attached to full semitrailers.
Quicker
Easier
More difficult
Q.20
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When coupling a trailer:
Make sure to couple the proper glad hands.
Glad hands can be connected to any other glad hands.
Only one set of glad hands should be connected.
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