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Florida CDL Combination Test 2
Practice mode
Question
1
of 20
QUESTION 1 / 20
Driving a combination vehicle ____ than driving a single vehicle.
Choose one answer below.
A
Is easier
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B
Requires more driving skill
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C
Is better for training
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D
Is safer in inclement weather
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QUESTION 2 / 20
Rollovers happen when drivers:
Choose one answer below.
A
Turn too quickly.
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B
Do not driving fast enough.
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C
Pay attention to the road.
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D
Drive illegally.
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QUESTION 3 / 20
What does the trailer air supply control look like?
Choose one answer below.
A
It is a square blue knob.
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B
It is a triangular yellow knob.
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C
It is an eight-sided red knob.
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D
It is a circular orange knob.
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QUESTION 4 / 20
Pull out the trailer air supply control to test:
Choose one answer below.
A
The parking brake.
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B
The trailer emergency brakes.
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C
The trailer service brakes.
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D
The landing gear.
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QUESTION 5 / 20
After connecting the air lines to the trailer while coupling, you should:
Choose one answer below.
A
Supply air to the trailer.
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B
Chock the wheels.
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C
Inspect the fifth wheel.
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D
Connect the electrical cord.
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QUESTION 6 / 20
Avoid needing to make sudden lane changes by:
Choose one answer below.
A
Using your horn to encourage other drivers to move out of your lane.
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B
Only driving slower than the posted speed limit.
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C
Watching the road ahead while driving.
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D
Pulling off the road and waiting when there is high traffic.
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QUESTION 7 / 20
The emergency air line:
Choose one answer below.
A
Is controlled by the foot brake.
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B
Is connected to the relay valves.
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C
Supplies air to the trailer air tanks.
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D
Prevents skids.
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QUESTION 8 / 20
What is off-tracking?
Choose one answer below.
A
When a vehicle’s front wheels follow a different path than its rear wheels
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B
When a vehicle's wheels all follow the exact same path
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C
When a load shifts during a turn
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D
When a vehicle's wheels run over a curb during a turn
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QUESTION 9 / 20
A trailer will be most likely to swing around when:
Choose one answer below.
A
It is full.
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B
Traveling in a straight line.
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C
It is empty.
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D
The wheels are rotating.
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QUESTION 10 / 20
The trailer hand valve:
Choose one answer below.
A
Should always be used for parking.
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B
Should only be used for parking on a downhill.
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C
Should never be used for parking.
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D
Should only be used when transporting cargo.
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QUESTION 11 / 20
While inspecting a coupling, you should go under the trailer and:
Choose one answer below.
A
Detach the jaws from around the kingpin.
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B
Make sure the locking lever is in the "emergency" position.
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C
Remove the safety latch.
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D
Look into the back of the fifth wheel.
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QUESTION 12 / 20
What happens when the wheels of a trailer lock up?
Choose one answer below.
A
The trailer will usually continue to move in a straight line.
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B
The trailer will disengage.
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C
The trailer will likely swing around.
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D
The trailer will stop.
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QUESTION 13 / 20
After finishing a pre-trip inspection, you should:
Choose one answer below.
A
Leave the rear shut-off valves open.
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B
Remove the service line valve.
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C
Close the emergency line valve.
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D
Leave the emergency line valve open.
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QUESTION 14 / 20
Proper coupling technique:
Choose one answer below.
A
Is the same on all vehicles.
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B
Is essential to the safe operation of a vehicle.
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C
Includes ensuring that the fifth wheel plate is not greased.
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D
Can be learned over time.
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QUESTION 15 / 20
Failure to keep the fifth wheel plate properly greased could:
Choose one answer below.
A
Cause the trailer to disconnect.
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B
Cause steering problems.
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C
Cause braking problems.
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D
Affect the lights.
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QUESTION 16 / 20
If a trailer begins to skid, the driver should:
Choose one answer below.
A
Lock the brakes.
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B
Release the brakes.
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C
Steer in the opposite direction.
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D
Accelerate.
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QUESTION 17 / 20
If you need to back your trailer but cannot back up in a straight path, you should:
Choose one answer below.
A
Back toward the passenger's side.
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B
Back toward the driver's side.
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C
Swerve back and forth while backing.
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D
Always turn to your right.
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QUESTION 18 / 20
If your trailer goes off course while you are backing, you should:
Choose one answer below.
A
Continue the backing process without changing anything.
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B
Pull the truck forward, readjust, and start backing again.
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C
Get out of the truck and move the trailer into the right position.
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D
Turn the steering wheel all the way to the left until the trailer straightens out.
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QUESTION 19 / 20
Simply changing lanes can cause:
Choose one answer below.
A
A “crack-the-whip” effect, resulting in a rollover.
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B
A trailer to straighten out.
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C
Confusion over which lane the driver is hoping to use.
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D
Other drivers to reduce their speed.
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QUESTION 20 / 20
In a double or triple combination:
Choose one answer below.
A
Cargo weight must be evenly distributed between all trailers.
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B
The heaviest trailer should be positioned directly behind the cab.
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C
The heaviest trailer should be positioned in the rear.
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D
The weight of the trailers does not matter.
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