Florida CDL Class B Practice Test (FL) 3

5 out of 5 (143 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Are you ready to take a significant step towards earning your Class B CDL in Florida? Our Florida CDL Class B Practice Test is here to help you achieve that goal with confidence and ease. This unique test, the third in our series of CDL practice exams, offers a comprehensive and interactive way to prepare for your actual CDL exam in 2026. Our CDL practice test features 20 carefully crafted questions that are essential for any Class B CDL applicant. To pass, you need to correctly answer at least 16 questions, giving you a clear benchmark for your progress. This DMV practice test not only evaluates your knowledge but also enhances your understanding of critical topics. You'll encounter questions on a variety of subjects, including pre-trip vehicle inspection, basic vehicle control, gear shifting, navigating hills and steep downgrades, effective communication with other road users, speed control, and drug and alcohol awareness. What sets our Florida CDL class B practice test apart is its focus on real-life driving scenarios. This approach helps you bridge the gap between theoretical knowledge and real-world application, making you a safer and more competent driver. Additionally, the flexibility of our practice tests allows you to customize your learning experience. You can focus on areas where you feel less confident, retake the practice test multiple times to track your improvement, and choose to study at times that suit you best. The best part? Our 2026 Florida CDL Class B Practice Test is completely free. Despite being a no-cost resource, it rivals paid versions in terms of features and learning opportunities. It's an invaluable tool for anyone preparing for their CDL test, providing a realistic and thorough practice environment. Embrace this opportunity to prepare for your CDL exam effectively. With our practice test, you're not just studying; you're building the foundation for a successful driving career in Florida.
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Sample Florida CDL Test Questions - General Knowledge

Question 1

What does the CDL manual identify as the leading cause of injury and death in roadway work zones?

  1. A Speeding traffic
  2. B Wet pavement
  3. C Poorly adjusted brakes
  4. D Limited nighttime visibility

Correct answer: A – Speeding traffic

The manual identifies speeding traffic as the leading cause of injury and death in roadway work zones. Drivers must obey posted speed limits when approaching and traveling through these areas. Speed should be reduced further for adverse road or weather conditions and when workers are near the roadway.

Source: Florida Commercial Driver’s License Manual — § 2.6.7, “Road Work Zones”

Question 2

Which inspection finding identifies a steering defect that must be corrected before the vehicle is driven?

  1. A Two secure vertical exhaust stacks are installed
  2. B A light film of grease is present on a tie rod
  3. C Steering-wheel play exceeds 10 degrees, or about 2 inches on a 20-inch wheel

Correct answer: C – Steering-wheel play exceeds 10 degrees, or about 2 inches on a 20-inch wheel

Florida's CDL inspection guidance identifies steering-wheel play greater than 10 degrees—about 2 inches at the rim of a 20-inch wheel—as a steering-system defect. Excessive play can make the vehicle difficult to steer. An unsafe steering condition must be repaired before the vehicle is placed in service.

Source: Florida Commercial Driver’s License Manual — § 2.1, “Vehicle Inspection,” under “Steering System Defects”

Question 3

What is the minimum UL fire-extinguisher rating required on the power unit of a placarded vehicle?

  1. A 10 B:C
  2. B 9 B:C
  3. C 8 B:C
  4. D 7 B:C

Correct answer: A – 10 B:C

Federal regulations require a power unit transporting hazardous materials in a quantity requiring placarding to carry a fire extinguisher rated at least 10 B:C. The extinguisher must display its UL rating. It must also be charged, readily accessible, and securely mounted.

Source: Florida Commercial Driver’s License Manual — § 9.6.8, “10 B:C Fire Extinguisher”, 49 CFR § 393.95(a)(1)(i), (a)(2)–(4) – Emergency Equipment on All Power Units

Question 4

Before operating a CMV after taking an over-the-counter cold or allergy medicine, what must the driver verify?

  1. A Only half of the listed dose was taken
  2. B The medicine will not cause drowsiness or otherwise impair safe driving
  3. C The trip will be completed during daylight
  4. D A dispatcher has approved the medicine

Correct answer: B – The medicine will not cause drowsiness or otherwise impair safe driving

Some over-the-counter cold and allergy medicines can cause drowsiness or reduce alertness. A driver must not operate while any substance affects the driver to a degree that prevents safe vehicle operation. Read warning labels and do not drive if the medicine could impair safe driving ability.

Source: Florida Commercial Driver’s License Manual — § 2.11.2, “Driver Factors”, 49 CFR § 392.4(a)(4), (c) – Drugs and Other Substances

Question 5

During a CDL backing exercise, what is a pull-up?

  1. A Stopping and moving forward to improve the vehicle's backing position
  2. B Replacing the entire backing maneuver with forward travel
  3. C Moving forward briefly to reduce brake wear
  4. D Stopping without changing direction

Correct answer: A – Stopping and moving forward to improve the vehicle's backing position

A pull-up occurs when the driver stops and moves forward to clear an encroachment or obtain a better position before continuing to back. Simply stopping without changing direction does not count as a pull-up. Pull-ups are scored during basic control exercises according to the applicable testing instructions.

Source: Florida Commercial Driver’s License Manual — § 12.1, “Scoring,” under “Pull-ups”

Question 6

Which activity is not one of the three segments of the CDL skills test?

  1. A Materials-handling test
  2. B Vehicle inspection
  3. C Basic vehicle control
  4. D On-road driving

Correct answer: A – Materials-handling test

The three Florida CDL skills-test segments are vehicle inspection, basic vehicle control, and on-road driving. Applicants complete them in that order and must pass each segment before moving to the next. Operating material-handling equipment is not a CDL skills-test segment.

Source: Florida Commercial Driver’s License Manual — § 1.1.2, “Skills Tests”, 49 CFR § 383.113 – Required Skills

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