WISCONSIN DOUBLES TRIPLES PRACTICE CDL TEST
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Safely pulling double and triple trailers requires knowledge and skill. If you want to pull double or triple trailers, you must add the Doubles/Triples (T) endorsement to your Class A CDL. The Wisconsin doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The WI CDL doubles triples test covers the following sections of the Wisconsin CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this WI CDL practice test now to prepare for the actual test!
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1.
Your vehicle should be equipped with all of the following except:
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Spare electrical fuses
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Instructions
on how to perform a vehicle inspection test
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Fire extinguisher
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Warning devices for parked vehicles
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2.
If there is a fire in your vehicle, do NOT:
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notify emergency services.
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pull into a service station.
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park in an open area.
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park away from buildings and other vehicles.
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3.
Driving in very hot weather:
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should never be done.
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can decrease oil pressure.
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can increase tire pressure.
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can make it difficult to stay in your lane.
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4.
Large vehicles take longer to stop when they are:
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carrying hazardous materials.
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empty.
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fully loaded.
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heavily loaded but not fully loaded.
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5.
In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don't see the car. If you wish to change lanes, you should:
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wait until you are sure the car isn't in your blind spot.
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ease into the other lane slowly so the other car can get out of the way.
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assume the car left the roadway and change lanes as normal.
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None of the above.
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6.
Another name for front-end header boards is:
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containerized racks.
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cargo stopper.
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head belt.
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headache racks.
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7.
Skids caused by acceleration can usually be stopped by:
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speeding up.
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applying the brakes firmly.
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taking the foot off the accelerator.
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coming to a complete stop.
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8.
If the drive wheels begin to spin, you should:
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accelerate smoothly and change gears as necessary.
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wait 4-5 seconds before applying the accelerator.
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take your foot off the accelerator.
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apply your brakes all the way.
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9.
Most heavy duty vehicles use ___ air brake systems for safety.
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dual
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single
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triple
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reduced
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10.
The application pressure gauge:
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protects the tank and the rest of the system from too much pressure.
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stops the compressor from pumping air.
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tells you how much pressure is in the air tanks.
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shows how much air pressure is being applied to the brakes.
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WI Doubles Triples CDL Test
| Number of questions: | 20 |
| Correct answers to pass: | 16 |
| Passing score: | 80% |
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