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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 Connecticut CDL knowledge test. The CT 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 Connecticut CDL Manual. Take this CT CDL practice test now to prepare for the actual air brakes test!
1.
Excessive use of the service brakes results in overheating. Too much heat can:
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make the brakes stop working.
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cause the brakes to grab.
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cause the brakes apply unevenly.
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cause the brakes to squeak.
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2.
Hydroplaning is more likely if:
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tire pressure is low.
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tire tread is worn.
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the road is wet.
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All of the above.
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3.
Having ABS on only the trailer:
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makes the trailer more likely to swing out.
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still gives you more control over your vehicle during braking.
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makes the trailer more likely to roll over.
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is very dangerous.
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4.
To make the brakes work, air brakes use:
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compressed air.
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hydraulic air.
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carbon monoxide.
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nitrogen.
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5.
If you're feeling tired while driving you should:
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increase your speed to get to your destination quicker.
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drink coffee.
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stop driving and get some rest.
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eat something.
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6.
Tractor and straight truck spring brakes will come fully on when the air pressure drops to a range of:
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30 to 35 psi.
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5 to 15 psi.
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20 to 45 psi.
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55 to 74 psi.
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7.
If your vehicle is hydroplaning, you should:
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release the accelerator and push in the clutch.
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accelerate to get through the water as quickly as possible.
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use the brakes to slow down.
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None of the above.
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8.
You are coming down a long, steep downgrade. Which of the following is a sign that your brakes may have started to fade?
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The brake pedal feels spongy or goes to the floor.
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You hear a loud "bang".
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You have to apply your brakes harder and harder to get the same stopping power.
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The steering feels heavy.
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9.
Which of the following is NOT a reason for hydraulic brake failure?
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Brake fade on long hills
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Loss of hydraulic pressure
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Stab braking
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All of the above.
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10.
If your vehicle has an alcohol evaporator, every day during cold weather, you should:
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fill it up with oil to prevent alcohol from freezing.
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check the alcohol container and fill up as necessary.
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ensure that compressed air usually has some water and some compressor oil in it.
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fill it up with oil to prevent the pipes from freezing.
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Frequently Asked Questions
To obtain a learner’s permit in Connecticut, you must be at least 16 years old. If you are between 16 and 17 years old, after completing a driver training program and keeping the permit for 120 days (or 180 days if you have taken the training at home with a qualified trainer), you can obtain a driver's license. If you are 18 years of age or older, you are required to hold an adult learner’s permit for a minimum of 90 days before obtaining a class D driver's license.
You can schedule your Connecticut knowledge test online. Select dates and times according to the available choices at various Connecticut DMV offices.
Ensure you bring valid documents or certified copies. Here's what you need:
- Proof of Social Security Number (SSN).
- Two proofs of Connecticut residency dated within 90 days. Examples include a bill from a bank, mortgage company, credit card company, hospital…
- A completed application for Non-Commercial Learner's Permit and/or Driver's License.
For under 18 also:
- Completed Certificate of Parental Consent.
For Non-US born also:
- Proof of Legal Presence in the United States.
The DMV written tests are available in various languages, including Arabic, English, French, Italian, Mandarin, Polish, Portuguese, Russian, and Spanish. If your primary language is not among these options, you can bring a dictionary. Anyway, you can’t use a translator during the exam.
The DMV written test is based on the Connecticut Driver Manual. Focus on road signs, safe driving practices and road rules. Take our free practice tests to prepare for the exam, or sign up for DMV Premium to unlock more resources and prepare for your permit test faster!
The Connecticut DMV written test consists of 25 multiple-choice questions and is based on the information provided in the manual. Taking numerous practice tests and thoroughly studying the handbook will increase your chances of success.
In Connecticut, you can miss up to 5 questions on the DMV written test. To pass, you need an accuracy rate of 80% or higher, which means correctly answering at least 20 out of the total 25 questions.
Learner permit holders:
- Cannot drive alone. They must be accompanied by a driving instructor or a driver aged 20 or older with a clean driver record for four consecutive years.
- Cannot use cell phones when driving.
For 16 and 17-year-old drivers, the State of Connecticut imposes these restrictions:
- During the first six months after obtaining a driver's license, you are not allowed to have any passengers in the vehicle, except for a licensed driving instructor, a parent/legal guardian with a valid driver's license, or a driver aged 20 or older with a clean driver record for four consecutive years. During the second six months, you can also transport family members.
- You cannot drive from 11 p.m. to 5 a.m., except in cases of employment, school, religious activities, or medical emergencies.
The passenger and curfew restrictions do not apply if you are a member of a volunteer fire/ambulance company.
A Connecticut instruction permit remains valid until you either obtain a driver's license or for a period of 2 years from the date of issuance, whichever occurs first. This waiting period ensures you have ample time to gain valuable driving experience and feel confident before the exam.
If you do not pass your DMV written test in Connecticut, you will need to wait 7 days before you can retake it. To reschedule an appointment and retake the exam, you have to pay the required fee again.