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The air brakes endorsement applies to applicants who wish to drive a vehicle with air brakes in Class A, B, or C CDL. To drive a vehicle with air brakes, you must pass the air brake component of the West Virginia CDL knowledge test. The WV CDL air brakes test consists of 25 questions, and you'll need at least 20 correct answers to pass (80%). The test covers the information found in the air brakes section of the West Virginia CDL Manual. Take this WV CDL practice test now to prepare for the actual air brakes test!
1.
Air brakes:
are prohibited on larger vehicles.
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are an effective way to stop large and heavy vehicles.
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can improve fuel efficiency.
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should be used only when driving on wet roads.
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2.
What factors can cause brakes to fade or fail?
Not taking your foot off the accelerator.
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Overheating, low air pressure or water in the air tanks.
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Going too slow.
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Not pressing the brake pedal hard enough.
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3.
When using a fire extinguisher, you should stay:
at least 10 feet away from the fire.
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as far away from the fire as possible.
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at whatever distance you think is safe.
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as close to the fire as possible, without getting burnt.
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4.
The spring brakes come on:
when you lose ABS control.
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when main air pressure is lost.
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when air pressure in both air brake systems rises to a value set by the manufacturer.
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when you bring the vehicle to a complete stop right away.
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5.
Too little weight on the driving axles can cause:
mechanical damage.
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poor visibility.
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longer stopping distances.
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poor traction.
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6.
When the low air pressure warning light and buzzer first come on, you should:
immediately put alcohol into the air system.
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downshift and slow down.
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bring the vehicle to a safe stop right away.
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speed up to restore pressure.
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7.
Distracted driving may be caused by _________ while driving.
listening to music
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maintaining constant speed
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eating
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All of the above.
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8.
Brake lag is:
the distance your vehicle will continue to travel, in ideal conditions, before you hit the brakes.
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the amount of air pressure required to stop the vehicle.
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the time required for the air brakes to work after the brake pedal is pushed.
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the distance your vehicle will travel, in ideal conditions, while you are braking.
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9.
The emergency brake system:
uses the parking brake to stop the vehicle in the event of a brake system failure.
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uses the service brake to stop the vehicle in the event of a parking brake system failure.
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uses parts of the service and parking brake systems to stop the vehicle in the event of a brake system failure.
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None of the above.
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10.
If you are driving a 30-foot vehicle at 55 mph, you should leave at least _____ between you and the vehicle ahead.
4 seconds
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5 seconds
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2 seconds
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3 seconds
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Frequently Asked Questions
According to the Graduated Driver’s License program in West Virginia, you must be at least 15 years old to apply for an instruction permit. To obtain an intermediate license, you must be at least 16 years old and have held the permit for 6 months. At 17 years old, you become eligible for a class E license.
You have two options:
- You can take the test at a West Virginia DMV office by scheduling an appointment online and selecting a date and time.
- You can opt for the online test using a laptop equipped with a webcam. If you are under 18, you must be supervised by an adult over 18. Upon passing the test, you will receive a completion certificate valid for six months. To obtain your permit, you must bring it to a DMV office with the other required documents.
As a first-time applicant in West Virginia, you are required to bring the following documents:
- Proof of identity (if you have changed your legal name, provide documents to certify it).
- Proof of Social Security number.
- Two proofs of West Virginia residency.
- School Driver Eligibility Certificate (for minors).
Additionally, the DMV will provide you with the application, which must be signed by a parent or guardian if you are under 18.
The online DMV written test is available in English and Spanish (audio versions are also provided). If needed, you can request assistance from a sign language interpreter or translator.
The best way to prepare for the DMV written test is by reading the West Virginia Driver’s Handbook, which contains information about road signs, parallel parking, turning, passing a vehicle, yielding the right of way, etc. After studying the manual, test your preparation with our free practice tests!
The West Virginia DMV written test comprises 25 questions, and you have 50 minutes to complete it. It is designed to evaluate your knowledge of general road rules, safe driving practices, and road signs. You should study the manual carefully to ensure your success on the first attempt.
To pass the West Virginia DMV written test, you are allowed up to 6 wrong answers. Keep in mind that there's a time limit, and any unanswered questions within that time frame will count as incorrect.
Restrictions for an instruction permit holder:
- A licensed driver aged 21 or over must be present in the front seat when driving.
- Driving is permitted only between 5:00 am and 10:00 pm.
- Only two non-family member passengers are allowed.
- Cell phone usage is prohibited.
Restrictions for an intermediate license holder:
- Driving without a supervising adult is allowed between 5:00 am and 10:00 pm. Between 10:00 pm and 5:00 am, you cannot drive unless accompanied by a supervising adult or for specific reasons like employment, school, religious activities, or emergencies.
- During the first six months, no passengers under the age of 20 are allowed, except for siblings. During the second six months, only one non-family member passenger under 20 is permitted.
- Cell phone usage is prohibited.
After obtaining a driver license, these restrictions still apply:
- All occupants must wear seat belts.
- You cannot drive after consuming any amount of alcohol until you are 21 (zero alcohol tolerance).
For minor applicants, the permit expires on their 18th birthday, with an additional 30-day grace period beyond this date. For individuals over 18, the instruction permit is valid for a period of 180 days. If it expires, the DMV test must be retaken. In both cases, this permit is not renewable.
If you fail your DMV written test in West Virginia, you can retake it after a waiting period of 7 days. A retest fee is required. If you have failed your exam and need some extra help to improve your preparation, sign up for DMV Premium!