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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. To avoid rollbacks when you start, you should:
release the parking brake only when you have applied enough engine power.
if you have manual transmission, partly engage the clutch before you take your right foot off the brake.
put on the parking brake whenever necessary.
All of the above.
2. What should you do if your vehicle gets stuck on the railroad tracks?
Turn on the emergency flashers and call 911.
Call 911, then get out of the vehicle and away from the tracks.
Stay inside the vehicle and call 911.
Get out of the vehicle and away from the tracks as quickly as possible, then call 911.
3. Empty trucks have the best braking. True or False?
It depends on the truck.
It depends on the cargo.
4. If a load is 10 feet long, the minimum number of tie-downs required is:
5. To test the tractor-semitrailer connection for security:
check that the trailer is locked onto the tractor by pulling the tractor gently forward while the trailer brakes are still locked.
go under the trailer and look into the back of the fifth-wheel.
pull out the air supply knob.
plug the electrical cord into the trailer and fasten the safety catch.
6. Who is responsible for inspecting the cargo?
The driver
The shipper
The person who loaded and secured the cargo
The motor carrier
7. If you are driving a 30 foot vehicle at 35 mph, you should leave at least _______ between your vehicle and the vehicle in front of you.
3 seconds
2 seconds
4 seconds
1 seconds
8. Rollovers happen when drivers:
stop too often.
brake too hard.
turn too fast.
turn too slowly.
9. An Anti-lock Braking System:
increases a vehicle's stopping power.
keeps your wheels from locking when you brake hard.
lets you brake faster.
increases the distamce required to stop on slippery surfaces.
10. When backing a trailer, you should:
pull-up frequently to reposition the vehicle.
not back up in a straight line.
turn the steering wheel toward the direction you want to go.
avoid braking.
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CDL Combination Test (WI)

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