CDL Practice Tests: Dominate The CDL Exam!
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Go!When performing the Alley Dock maneuver on your skills test, you must back into the alley bringing the rear of your vehicle within how many feet of the rear of the alley without touching boundary lines or cones?
- 10 ft
- 3 ft
- 5 ft
- 8 ft
Alley Dock - You may be asked to sight-side back your vehicle into an alley. You will drive past the alley and position your vehicle parallel to the outer boundary. From that position, back into the alley bringing the rear of your vehicle within 3 feet of the rear of the alley without touching boundary lines or cones. Your vehicle must be straight within the alley/lane when you have completed the maneuver.
Using the following numbers for your calculations, how much weight will come off your drive axles?
Miles travelled: 360
Percentage of fuel weight on drive axles: 30%
- 200 pounds
- 210 pounds
- 300 pounds
- 144 pounds
360/6 = 60 gallons of fuel
60 gallons x 8 pounds per gallon = 480 pounds of total fuel burned off
Since 30% of the weight of fuel goes on our drive axles, we need to know what 30% of 480 is:
30 x 480 / 100 = 144 pounds coming off the drive axles
The Aggregate Working Load Limit should, at minimum, be:
- 100% of the weight of the cargo.
- 50% of the weight of the cargo.
- 80% of the weight of the cargo.
- Determined by the shipper.
How much should the Aggregate Working Load Limit be?
The aggregate working load limit of any securement system must be at least 50% of the weight of the cargo being secured.
To secure a cubic-shaped boulder, how many tiedowns are required, at minimum?
- 2
- 3
- 5
- 1
Special Circumstances: Securing a Cubic-Shaped Boulder
The securement of a cubic-shaped boulder must meet these requirements in addition to the other large boulder requirements in Section 13.
Secure each boulder individually with at least two chain tiedowns placed side-to-side across the vehicle.
Place tiedowns as closely as possible to the hardwood blocking used to support the boulder.
Which of the following statements are not true about the way ABS works?
- Sensors detect potential wheel lock-up. An electronic control unit (ECU) will then decrease brake pressure to avoid wheel lockup.
- ABS will minimize wear on the brake shoes and drums by applying the minimum necessary stopping force based on sensor input
- ABS works far faster than the driver can respond to potential wheel lockup. At all other times, the brake system will operate normally.
- Brake pressure is adjusted to provide maximum braking without the danger of lockup.
- Sensors detect potential wheel lock up. An electronic control unit (ECU) will then decrease brake pressure to avoid wheel lockup.
- Brake pressure is adjusted to provide the maximum braking without danger of lockup.
- ABS works far faster than the driver can respond to potential wheel lockup. At all other times the brake system will operate normally.
When is a trailer jackknife more likely to happen?
- When the trailer is empty or lightly loaded
- When the air pressure for the brakes is higher in the trailer tank than in the tractor tank
- When you use the service brake simultaneously with the engine brake
- When the trailer is heavily loaded
When the wheels of a trailer lock up, the trailer will tend to swing around. This is more likely to happen when the trailer is empty or lightly loaded. This type of jackknife is often called a "trailer jackknife."
What should you do if the air brake warning light and buzzer comes on while you're driving?
- Stop right away and safely park the vehicle
- Keep driving and watch the gauge. Do not lot it drop below 30 psi. If it does, park the vehicle.
- Push in the parking control knob immediately to preserve the air you have left in the system
- Continue driving normally, but use the trailer hand control valve to stop the vehicle.
Re-grooved, recapped, or retreaded tires are common on tractor-trailers. What should you do if you find them on the front wheels?
- Visually check the alignment of the steer tires
- You must not drive the vehicle because re-grooved, recapped, or retreaded tires on the front wheels are prohibited
- Drive with confidence because re-grooved, recapped, or retreaded tires are far more trustworthy
- Record the tire size and air pressure at the start of each day
The warning light and buzzer should shut off when the air pressure in both air brake systems rises to a value set by the manufacturer. This value must be:
- Less than 60 psi
- Greater than 100 psi
- Greater than 120 psi
- Greater than 60 psi
How quickly must you be able to stop?
- Within 100 ft if you're traveling at less than 50 mph
- In less than 1/2 of the length of your vehicle
- Within the distance you can see ahead.
- Quickly enough to prevent the vehicle behind you from running into the DOT bumper on the back of your trailer
CDL Manual Sections To Choose From:
- Introduction
- Driving Safely
- Transporting Cargo 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 Endorsement
CDL Practice Tests
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 endorsement 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.
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