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Question #339 (1 of 10)
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Which of the following statements is true about ABS (anti-lock brake systems):
- It does not decrease or increase your normal braking capability.
- All of these are true
- ABS only activates when wheels are about to lock up.
- ABS is an addition to your normal brakes
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ABS is an addition to your normal brakes. It does not decrease or increase your normal braking capability. ABS only activates when wheels are about to lock up.
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Question #274 (2 of 10)
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Which of the following are true about automatic slack adjusters?
- Automatic adjusters should not have to be manually adjusted except when performing maintenance on the brakes and during installation of the slack adjusters
- Even though automatic slack adjustors adjust themselves during full brake applications, they must be checked
- It is recommended that when brakes equipped with automatic adjusters are found to be out of adjustment, drivers take the vehicle to a repair facility as soon as possible to have the problem corrected.
- All these are true
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Even though automatic slack adjustors adjust themselves during full brake applications, they must be checked. Automatic adjusters should not have to be manually adjusted except when performing maintenance on the brakes and during installation of the slack adjusters. It is recommended that when brakes equipped with automatic adjusters are found to be out of adjustment, drivers take the vehicle to a repair facility as soon as possible to have the problem corrected.
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Question #240 (3 of 10)
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Some air brake systems have an alcohol evaporator to put alcohol into the air system. What purpose does this serve?
- Helps to reduce the risk of ice in air brake valves and other parts during cold weather. Ice inside the system can make the brakes stop working.
- Under high pressure the air can become stagnant, causing a loss of braking force
- All these answers are correct
- It lubricates the rubber seals throughout the air brake system
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Some air brake systems have an alcohol evaporator to put alcohol into the air system. This helps to reduce the risk of ice in air brake valves and other parts during cold weather. Ice inside the system can make the brakes stop working.
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Question #169 (4 of 10)
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By far the most common skid is one in which:
- The trailer tires lose traction going through a curve too fast on slick roadways
- The front wheels lose traction through excessive braking
- The front wheels lost traction through excessive steering
- The rear wheels lose traction through excessive braking or acceleration
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By far the most common skid is one in which the rear wheels lose traction through excessive braking or acceleration. Skids caused by acceleration usually happen on ice or snow.
A tractor-trailer can not accelerate like a car, so spinning the tires because you're on the gas too hard is pretty rare unless you're on snow or ice. Be extremely careful when braking in slick conditions!
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Question #739 (5 of 10)
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When securing paper rolls with eyes crosswise, which of the following can be used to prevent side-to-side shifting when there is more than 8 inches of space to the wall?
- Any of these methods are acceptable.
- Void fillers.
- Friction mats.
- Tiedowns.
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Requirements for eyes crosswise: prevent rolls from shifting toward either wall
If there is more than a total of 203 mm (8 in) of space between the ends of a paper roll and other rolls or the walls of the vehicle, use one of these methods:
- Void fillers (such as honeycomb)
- Blocking
- Bracing
- Friction mats
- Tiedowns
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Question #599 (6 of 10)
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Which of the following conditions are NOT required for a driver using the 150-mile air radius logbook exception?
- Must remain within a 150-air-mile radius from their starting point.
- Must return to their original starting point
- Must be done working within 14 consecutive hours
- Must start work within 10 hours of finishing the previous shift
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Drivers using this exception:
- Must be done working within 14 consecutive hours
- Must return to their original starting point
- Must remain within a 150-air-mile radius from their starting point.
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Question #320 (7 of 10)
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When a vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called:
- Off-tracking
- Rolling over
- Turn scraping
- Inner-tracking
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When a vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called off-tracking or "cheating."
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Question #151 (8 of 10)
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What is stab braking?
- Apply the brakes as hard as you can without locking up the wheels
- None of these definitions are correct
- Apply the brakes lightly. Once the vehicle has slowed to a reasonable speed you can stab the brake pedal to bring it safely to a stop
- Apply the brakes all the way. Release the brakes when the wheels lock up. As soon as the wheels start rolling again, apply the brakes fully again.
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Stab Braking
- Apply your brakes all the way.
- Release brakes when wheels lock up.
- As soon as the wheels start rolling, apply the brakes fully again. (It can take up to one second for the wheels to start rolling after you release the brakes. If you re-apply the brakes before the wheels start rolling, the vehicle will not straighten out.)
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Question #576 (9 of 10)
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Which of the following is NOT correct when describing the 14-hour rule?
- You are allowed a window of 14 consecutive hours of on-duty time after being off duty for 10 or more consecutive hours
- The 14-consecutive-hour, on-duty period begins when you start any kind of reportable work (doing your pre-trip inspection, performing vehicle maintenance, loading / unloading cargo, fueling, driving, etc.)
- The 14-consecutive-hour, on-duty period only begins when you start driving. It does not begin when you go on-duty.
- You can take care of other on-duty tasks beyond the 14-hour limit, but you must limit your driving time to this 14-hour window.
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The 14-hour on-duty limit is usually thought of as a daily limit, even though it is not based on a 24-hour period. You are allowed a window of 14 consecutive hours of on-duty time after being off duty for 10 or more consecutive hours. The 14-consecutive-hour, on-duty period begins when you start any kind of reportable work (doing your pre-trip inspection, performing vehicle maintenance, loading / unloading cargo, fueling, driving, etc.). Once you have reached the end of this 14-consecutive-hour period, you cannot drive again until you have been off duty for 10 consecutive hours.
Your opportunity for driving is limited to the 14 consecutive hours from the time you started your day. You can take care of other on-duty tasks beyond the 14-hour limit, but you must limit your driving time to this 14-hour window. This is a rule which has a few exceptions. There are some ways to extend this 14-hour period, but we will get into that later. For now, just think of it as an important limit. We are going to tackle this in little bites. We need to learn each of these rules as they are introduced to us. As we master them we will begin to learn more about them as we progress through this study material.
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Question #377 (10 of 10)
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The regulations require vehicles transporting certain types or quantities of hazardous materials to display diamond-shaped, square-on-point, warning signs called:
- Hazmat Bill
- Placards
- Hazmat Card
- Hazardous Disclosure
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The regulations require vehicles transporting certain types or quantities of hazardous materials to display diamond-shaped, square-on-point, warning signs called placards.
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Complete!
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CDL Manual Sections To Choose From:
- Introduction
- Driving Safely
- Transporting Cargo Safely
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- Transporting Passengers Safely
- Transporting Passengers Safely
- Air Brakes
- Combination Vehicles
- Doubles and Triples
- Tank Vehicles
- Hazardous Materials
- School Bus
- Vehicle Inspection
- Basic Vehicle Control Skills Test
- On-Road Driving
- Logbook
- Weight And Balance
- Flatbed Cargo Securement
- New York State Coil Endorsem*nt
Our CDL practice tests are designed to help test your knowledge of the CDL Manual and sharpen your skills for taking the CDL permit and endorsem*nt exams. They are not designed to teach you the knowledge necessary to pass the exams. Please do not try to memorize CDL practice tests in order to get your CDL. There's a better way.
Our High Road CDL Training Program is by far the easiest and most effective way to learn the materials necessary for passing your written CDL exams and preparing for a great start to your career. We strongly suggest using the High Road (which is 100% free!) to learn the CDL manual before using our CDL practice questions to test your knowledge.
How to Pass CDL Permit Test the First Time
The Class A CDL permit exam consists of a multiple choice test covering 20 different areas related to commercial driving. To prepare for this test, it is important to do practice tests beforehand. Knowing your personal study habits, getting enough rest, and eating a healthy breakfast will also set you up for success.
Tips For Passing the Commercial Driver's License (CDL) Permit Test
- Practice Makes Perfect: The best way to both mentally and physically prepare for the written exam is to take practice tests. Start out with open-book tests and gradually work your way up to giving yourself a time limit. Finally, before the big day, take a practice exam as if it were the real thing without any help. This will give you a good indication of how well you understand the material.
- Understand Instead of Memorize: Memorizing information can be helpful for the written exam, but the key to being fully prepared is to understand the material rather than just memorizing it. Understanding the material will allow you to answer questions correctly no matter how they are worded.
- Real World Applications: When struggling to understand concepts, create real-world scenarios to make the information more relevant to your life. Doing this will make it easier to remember come test time.
- Utilize Study Strategies: Utilizing study strategies such as flashcards, songs, rhymes, and phrases can help you remember the material.
- Be Fresh and Alert: The night before the exam, get a good night's sleep and eat a filling breakfast on the morning of the exam. This will ensure you are fresh and alert to take your exam.
- Begin Early and Space out Your Studying: It is important to give yourself ample time before the exam to get familiar with the material and get your mind ready for the big day. Consider taking a training course online or in-person, if it's required. Shop around for a course that works best for you. By following these tips, you will be well prepared for your written CDL exam and on your way to a successful career.
