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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Wisconsin 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 Wisconsin CDL Manual. Take this practice test now to prepare for the actual WI CDL combination test!
1. An Anti-lock Braking System (ABS):
lets you drive faster.
increases your normal braking capability.
always shortens your stopping distance.
keeps your wheels from locking up when you brake hard.
2. 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:
shift down to a speed that you can control without using the brakes.
keep the clutch slipping while slowly accelerating.
partly engage the clutch before you take your right foot off the brake.
use the parking brake to hold the vehicle until the clutch engages.
3. If you smell exhaust fumes in the cab, you should:
open the windows.
remember to conduct a post-trip inspection.
wait for the next stop, then inspect your vehicle.
stop immediately.
4. You are inspecting your vehicle during a trip. What should you do?
Check critical items such as tires, brakes, and lights.
Use your senses to check for problems.
Watch gauges for signs of trouble.
All of the above.
5. Air brakes:
are prohibited on larger vehicles.
should be used only when driving on wet roads.
are an effective way to stop large and heavy vehicles.
can improve fuel efficiency.
6. Banked curves:
have a safe "design speed".
are reserved for pedestrians.
can be taken at any speed.
should always be avoided.
7. Which of the following may have reduced the clearances since the heights were posted at bridges and overpasses?
Repaving of the road
The weight of a cargo
8. 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.
9. Blocking _______________ to keep it from sliding.
is used in the front, back, and/or sides of a piece of cargo
goes from the upper part of the cargo to the floor
is used only in the back of a piece of cargo
None of the above.
10. After the pre-trip inspection, drivers should inspect their cargo and its securing devices again within ________ after beginning the trip.
two hours
25 miles
20 miles
50 miles
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WI CDL Combination Test

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