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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!
1.
Before driving a vehicle with a dual air system, allow time for the air compressor to build up a minimum of ____ pressure in both the primary and secondary systems.
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100 psi
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50 psi
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75 psi
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25 psi
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2.
Which of the following is NOT correct? Anti-lock brakes:
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require drivers to apply the brakes as hard as they can without locking the wheels.
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help drivers avoid skids caused by over braking.
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help drivers avoid wheel lock up.
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give drivers more control over the vehicle during braking.
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3.
Dual tires:
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should not come in contact with each other.
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are dangerous.
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should always come in contact with each other.
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should come in contact with each other whenever possible.
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4.
Brake lag is:
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the amount of air pressure required to stop the vehicle.
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the distance your vehicle will continue to travel, in ideal conditions, before you hit the brakes.
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the distance your vehicle will travel, in ideal conditions, while you are braking.
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the time required for the air brakes to work after the brake pedal is pushed.
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5.
If you are being tailgated, you should:
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make quick changes.
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open up room in front of you.
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increase your speed very gradually.
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turn on your taillights.
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6.
For safe handling, the heaviest trailer should be:
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behind the tractor.
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the last trailer.
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the second trailer in a triple.
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None of the above.
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7.
Dollies with ABS are required to have a malfunction lamp:
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on the left side.
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on the rear.
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on the front.
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on the right side.
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8.
Which of the following statements is true?
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There is no way that short circuits due to damaged insulation can cause a vehicle fire.
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Under-inflated tires will NOT cause a vehicle fire.
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Poor cargo ventilation is a common cause of fire.
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Carrying a properly charged and rated fire extinguisher will help prevent fires.
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9.
Empty trucks:
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require the same stopping distance than full trucks.
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require a greater stopping distance than full trucks.
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require a shorter stopping distance than full trucks.
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None of the above.
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10.
When driving in heavy traffic, the safest speed is:
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the same speed as the other vehicles.
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faster than the other vehicles.
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slower than the other vehicles.
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half the speed of the other vehicles.
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Frequently Asked Questions
If you're between 15 and 18, you must comply with the Graduated Driver License program. You can obtain an instruction permit at 15 years old. Then, once you're at least 16 years old and have held the permit for at least six months, you can apply for a probationary driver license. To obtain a regular driver license (class D), you must be at least 19 years old.
If you're 18 years old or older, you must hold the permit for a minimum of seven days before applying for a probationary driver license.
You cannot schedule appointments for the DMV written test because they are conducted on a walk-in basis. Verify if your chosen Wisconsin DMV office provides permit tests before you go. Keep in mind that it usually takes around 45 minutes to finish, so make sure to arrive with enough time before the office's closing hours to complete the exam.
You'll need to bring specific documents to prove your eligibility:
- A completed Wisconsin Driver License Application. If you're under 18 years old, your application must be signed by the instructor of the driver education program you're enrolled in, and you must have the signature of a parent/guardian or sponsor.
- Proof of U.S. citizenship or legal permanent resident status.
- Proof of your name and date of birth.
- Proof of identity.
- Proof of Wisconsin residency if you're 18 or older.
- Proof of Social Security number.
- Proof of enrollment in school or a high school diploma (for applicants under 18).
The DMV written test in Wisconsin is offered in English, American Sign Language, Burmese, Chinese, Croatian, Hmong, Polish, Russian, Serbian, Somali, Spanish. Audio assist option is available upon request.
To prepare for the DMV written test, read the Wisconsin Driver's Handbook. Pay attention to road signs, parallel parking, turning, passing a vehicle, yielding the right of way, etc. Test your knowledge with our practice tests or sign up for Premium, which offers extra resources to get ready for your exam.
If you operate with an instruction permit in Wisconsin, there are specific restrictions:
- You must be accompanied by a licensed parent/guardian/spouse who is at least 19 years old and has at least two years of driving experience, seated beside you. Alternatively, you may be accompanied by a person 21 years or older with written authorization from your parent/guardian (if you are a minor).
- If you are 16 or older, you can transport one other licensed driver who is at least 25 years of age and has at least two years of driving experience, in addition to your supervisor.
If you operate with a probationary license, the following restrictions apply during the first nine months:
- You can drive alone between 5 a.m. to midnight and transport siblings and one licensed adult with two years or more of driver experience.
- From midnight to 5 a.m., you can only drive alone for work or school activities, or you must be accompanied by a parent/guardian, an instructor/spouse who is 19 or older, or a person 21 or older.
If you're under 21 years old, it's prohibited to drive after consuming any amount of alcohol.
A Wisconsin class D instruction permit is valid for 18 months, and it can be renewed online within 8 years (if you are 64 or younger). It is not required to retake the DMV test within 8 years of its expiration. Applicants under 18 years old must provide proof of enrollment or completion of a driver education course.
If you don't pass your DMV written test in Wisconsin, you can retake it the next day. You have five attempts in one year. After the fifth failure, you'll need to get special permission from DMV staff before trying again.