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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Louisiana CDL combination test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The test covers the combination vehicles section of the Louisiana CDL Manual. Take this practice test now to prepare for the actual LA CDL combination test!
1. When inspecting the cargo, make sure it is:
piled up.
not overloaded.
secured properly for the first 50 miles after beginning a trip.
All of the above.
2. At passive railroad crossings, even if there are active railroad signals that indicate the tracks are clear, you must _________  to be sure it is safe to proceed.
listen, look and stop
go, stop and listen
stop, look, and listen
go, look and put the transmission in neutral
3. It's very important to distribute the cargo so it is:
in the centre of the load.
as high up as possible.
piled up.
as low as possible.
4. You have uncoupled a trailer and want to inspect the landing gear. The tractor should be positioned:
completely clear of the trailer.
with the tractor frame above the trailer.
with the tractor frame under the trailer.
None of the above.
5. When going down grades, you should:
shift up.
put the transmission in Neutral.
downshift to a lower gear.
rely solely on engine braking to reduce your speed.
6. You are driving a heavy vehicle with a manual transmission, and you have to stop on the shoulder while driving on an uphill grade. When putting your vehicle back in motion up the grade, you should:
partly engage the clutch before you take your right foot off the brake.
shift down to a speed that you can control without using the brakes.
use the parking brake to hold the vehicle until the clutch engages.
keep the clutch slipping while slowly accelerating.
7. Which of the following is NOT part of the procedure to raise the landing gear?
Safely securing the crank handle, after raising the landing gear
Raising the landing gear all the way up
Using the high range gear, if equipped, to begin raising the landing gear
Using the low range gear, if equipped, to begin raising the landing gear
8. When backing a tractor under a trailer:
the trailer will be lifted slightly when the tractor backs under it.
the end of the kingpin will be even with the top of the fifth wheel.
you should lift the trailer off the fifth-wheel.
the fifth-wheel will come out from under the trailer.
9. The only way to stop a front-wheel skid is to:
supply more power to the drive wheels.
let the vehicle slow down.
All of the above.
10. If an item placed on a flatbed trailer is 7 feet long, it should have __ tie-downs.
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LA CDL Combination Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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