Commercial Drivers Licence

Here you have the best Test Prep CDL practice exam questions

  • You have 252 total questions across 51 pages (5 per page)
  • These questions were last updated on March 24, 2026
  • This site is not affiliated with or endorsed by Test Prep.
Question 1 of 252

What is the most important reason for doing a vehicle inspection?

Answer

Suggested Answer

The suggested answer is B.

The answer is: safety for yourself and other road users. Although A, C, and D are valid reasons, the primary goal of a vehicle inspection is to insure safety.
Question 2 of 252

When backing your vehicle, which of the following is NOT recommended

Answer

Suggested Answer

The suggested answer is B.

The answer is: Back towards the right side. When backing your vehicle you should always back and turn towards the driver's side, even if it means going around the block to put your vehicle in the right position. Backing towards the right side is very dangerous because you cannot see well.
Question 3 of 252

It is important for driving safety to always be looking ahead. Which of the following is NOT a recommended time/distance that you should be looking ahead?

Answer

Suggested Answer

The suggested answer is D.

The correct answer is: About 5 car lengths. It is important to look ahead about 12-15 seconds to insure you have adequate time to stop or change lanes if necessary. 12 to 15 seconds is equivalent to about one city block or 1/4 mile on the open highway. Looking ahead 5 car lengths (about 70 feet) will not give you adequate time to react.
Question 4 of 252

You are driving a 40 foot truck at 35 MPH, how much space (in seconds) should you keep in front of you?

Answer

Suggested Answer

The suggested answer is B.

The correct answer is: 4 seconds. To calculate your space required, use the following formula: If going under 40 MPH, use 1 second for each 10' of vehicle length.
If going over 40 MPH, use the same formula but add 1 second. In this scenario, a 40' truck requires 4 seconds, and you don't need to add an additional second, because you are traveling under 40 mph.
Question 5 of 252

The act of operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others is known as?

Answer

Suggested Answer

The suggested answer is C.

The correct answer is: Aggressive driving. An aggressive driver is only concerned with their driving and not others on the road. Road rage differs from aggressive driving because with Road Rage, the driver shows intent to harm others.

About the Test Prep CDL Certification Exam

About the Exam

The Test Prep CDL (Commercial Drivers Licence) validates your knowledge and skills. Passing demonstrates proficiency and can boost your career prospects in the field.

How to Prepare

Work through all 252 practice questions across 51 pages. Focus on understanding the reasoning behind each answer rather than memorizing responses to be ready for any variation on the real exam.

Why Practice Exams?

Practice exams help you familiarize yourself with the question format, manage your time, and reduce anxiety on the test day. Our CDL questions are regularly updated to reflect the latest exam objectives.