WI CDL COMBINATION PRACTICE TEST
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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!
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1.
Inspecting the fifth-wheel does NOT include:
checking for missing or damaged parts.
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backing until the fifth-wheel just touches the trailer.
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checking that there are no cracks in the frame.
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making sure that the fifth wheel is in the proper position for coupling.
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2.
Emergency brakes must be must be held on by:
the locking mechanism.
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mechanical force.
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water.
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air pressure.
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3.
When driving in very hot weather, the heat will increase the chances of:
ABS malfunction.
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suspension system defects.
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tire failure.
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loss of hydraulic pressure.
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4.
If your vehicle is equipped with air brakes, loss of air pressure in the emergency line will cause:
the trailer emergency brakes to come on.
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the trailer supply valve to open.
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the vehicle to slide back and forth.
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the springs to put on the brakes.
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5.
A high center of gravity means:
the spring brakes will come fully on.
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you'll have better traction.
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you are more likely to tip over.
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a rollover is less likely.
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6.
The crack-the-whip effect:
can cause a vehicle to tilt.
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can turn the trailer over.
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the ends of some vehicles to drag.
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can cause problems for drivers coming toward you.
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7.
If you are being tailgated, you should:
try to let the other vehicle pass.
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speed up.
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drive on the shoulder.
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turn on your taillights.
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8.
If ABS is not working:
you should use the parking brake.
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you will not have any brakes.
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you will still have brakes.
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you should use the emergency brake.
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9.
To know how much space you should keep in front of you when driving at speeds below 40 mph, one good rule says you need at least ______ for each ______ of vehicle length.
2 seconds; 10 feet
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3 seconds; 50 feet
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1 second; 10 feet
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1 second; 5 feet
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10.
When approaching a vehicle with a distracted driver, you should:
change lanes quickly.
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maintain your safe following distance.
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quickly pass the vehicle.
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sound your horn.
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WI CDL Combination Test
Number of questions: | 20 |
Correct answers to pass: | 16 |
Passing score: | 80% |
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