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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Wyoming 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 Wyoming CDL Manual. Take this practice test now to prepare for the actual WY CDL combination test!
1. When you are driving on a slippery road, you should NOT:
use the engine brake or speed retarder.
adjust turning and braking to road conditions.
keep a longer following distance.
take curves at slower speeds.
2. If you are being tailgated, you should:
move to the left lane.
increase your following distance.
speed up.
flash your brake lights.
3. When driving in very hot weather, the heat will increase the chances of:
ABS malfunction.
suspension system defects.
loss of hydraulic pressure.
tire failure.
4. ABS will:
increase your average speed.
not change your normal braking capability.
shorten your stopping distance.
not give you more control over the vehicle during braking.
5. What is a tractor jackknife?
When a drive-wheel skid lets the trailer push the towing vehicle sideways.
When the wheels of a trailer lock up, and the trailer swings around.
When the rear wheels of a trailer lock up, and the tractor swings around.
None of the above.
6. When backing a trailer, if you turn the wheel left:
the cab will go left and the trailer will go right.
the cab will go right and the trailer will go left.
the cab and the trailer will go right.
the cab and the trailer will go left.
7. If your vehicle gets stuck on the railroad tracks, you should:
gather up your paperwork and shipping papers while calling 911, then get out of the vehicle.
get out of your vehicle and away from the tracks.
check for identifiable landmarks to give the location of the crossing.
All of the above.
8. If a worker is close to the roadway in a work zone, you should:
pull off the road and stop.
drive at the posted speed limit.
reduce your speed below the posted speed limit.
drive on the shoulder.
9. Dollies with ABS are required to have a malfunction lamp:
on the rear.
on the front.
on the left side.
on the right side.
10. Transporting hanging meat requires special attention. Why?
Because hanging meat can be an unstable load with a high center of gravity.
Because you have to drive fast to get it delivered fresh.
Because refrigerated trucks have less traction.
All of the above.
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CDL Combination Test (WY)

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