Mississippi CDL Class B Practice Test (MS) 3

4.9 out of 5 (58 votes)
80% Passing score
20 Questions
4 Mistakes allowed
Aspiring for a Class B CDL in Mississippi? Our online CDL practice test is your ideal starting point. This third CDL practice test is specially designed for Class B applicants, offering a comprehensive preparation platform. Unlike the real Mississippi CDL permit test in 2026, ours is untimed, allowing you to delve deeply into each question without the pressure of a ticking clock. This relaxed approach enhances learning, ensuring you thoroughly understand each concept. Our 20-question Mississippi CDL practice test reflects a wide range of topics, crucial for every Class B CDL hopeful. You'll face sample permit test questions on pre-trip vehicle inspection, basic vehicle control, and gear shifting - yes, that includes mastering downshifting. Additionally, the DMV practice test covers navigating hills and steep downgrades, effective communication with other drivers, speed control, and vital drug and alcohol awareness. It's an all-encompassing preparation tool for 2026! What makes our Mississippi CDL class B practice test stand out is its basis on the official CDL driver's manual, the same source used for real CDL test questions. This alignment ensures that you're studying the most relevant and accurate information. Importantly, the permit practice test can be taken multiple times. This not only aids in building confidence but also ensures you are thoroughly prepared for every aspect of the real general knowledge test. Each attempt at our Mississippi DMV class B practice test presents the same set of written test questions and answers. This consistent approach helps in identifying areas needing more focus, ultimately leading to a stronger grasp of the material. Remember, mastering this CDL practice test is a significant step towards your Class B CDL, positioning you closer to success in the real examination in 2026. Embark on your CDL preparation with confidence! Our Mississippi practice permit test is a proven tool, guiding you through each topic methodically. It's more than just a sample test; it's a pathway to achieving your Class B CDL with ease and assurance in 2026!
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Sample Mississippi CDL Test Questions - General Knowledge

Question 1

Which vehicle-visibility equipment must be clean and working properly?

  1. A Reflectors and marker lights
  2. B Clearance lights and taillights
  3. C Identification lights
  4. D All of the above

Correct answer: D – All of the above

Reflectors, marker lights, clearance lights, taillights, and identification lights must all be clean and functional so other road users can see the commercial vehicle. Dirt can reduce the effectiveness of both lamps and reflective surfaces. These devices are particularly important at night and under conditions of reduced visibility.

Source: Mississippi Commercial Driver’s License Manual — § 2.11.4, “Other Lights”

Question 2

Which statement about cargo weight and loading is correct?

  1. A The legal maximum weight is safe under every driving condition
  2. B The shipper is solely responsible if the vehicle is overloaded
  3. C Legal weight limits vary by jurisdiction, and the driver must avoid overloading
  4. D A thorough initial inspection eliminates the need for later load checks

Correct answer: C – Legal weight limits vary by jurisdiction, and the driver must avoid overloading

The Mississippi CDL manual states that drivers are responsible for ensuring their vehicles are not overloaded. Commercial-vehicle weight limits can vary by jurisdiction and may include maximum gross, combination, and axle weights. A legal maximum is not necessarily safe in bad weather or mountainous conditions, and cargo and securement devices must be rechecked during the trip.

Source: Mississippi Commercial Driver’s License Manual — § 3.1, “Inspecting Cargo”, Mississippi Commercial Driver’s License Manual — § 3.2.2, “Legal Weight Limits”

Question 3

Which pre-trip inspection finding is listed as a steering-system defect?

  1. A More than one vertical exhaust stack
  2. B Lubricant visible on a tie rod
  3. C Steering-wheel play greater than 10 degrees

Correct answer: C – Steering-wheel play greater than 10 degrees

The Mississippi CDL manual identifies steering-wheel play greater than 10 degrees—about 2 inches at the rim of a 20-inch steering wheel—as excessive. This amount of free play can make the vehicle difficult to steer. The steering inspection also includes checking for missing hardware, damaged or loose components, fluid problems, and power-steering leaks.

Source: Mississippi Commercial Driver’s License Manual — § 2.1.3, “Steering System Defects”

Question 4

Which conditions can cause a commercial vehicle fire?

  1. A Spilled fuel or improper use of flares
  2. B Smoking, improper fueling, or loose fuel connections
  3. C Flammable, poorly sealed, improperly loaded, or poorly ventilated cargo
  4. D All of the above

Correct answer: D – All of the above

Spilled fuel and improper flare use can cause fires after an accident. Smoking, incorrect fueling procedures, and loose fuel connections create additional ignition risks. Flammable cargo, improper sealing or loading, and poor ventilation also can contribute to a commercial vehicle fire.

Source: Mississippi Commercial Driver’s License Manual — § 2.21.1, “Causes of Fire”

Question 5

Which is a major warning sign that a tire has failed while the vehicle is moving?

  1. A The low-air-pressure warning activates
  2. B A steady hissing sound begins
  3. C The vehicle thumps or vibrates heavily
  4. D The vehicle immediately loses most of its speed

Correct answer: C – The vehicle thumps or vibrates heavily

A flat tire can cause heavy thumping or vibration, and vibration may be the only sign of a rear-tire failure. Other possible signs include a loud bang, heavy steering after a front-tire failure, or fishtailing after some rear-tire failures. Hold the steering wheel firmly and avoid hard braking while bringing the vehicle under control.

Source: Mississippi Commercial Driver’s License Manual — § 2.17.4, “Tire Failure”

Question 6

Which factors should be considered when choosing a safe speed for a long, steep downgrade?

  1. A Perception distance, traffic spacing, and reaction time
  2. B Vehicle width, driver reaction time, and lane position
  3. C Vehicle and cargo weight, grade length and steepness, road conditions, and weather
  4. D Perception time, brake-pedal travel, and total stopping distance

Correct answer: C – Vehicle and cargo weight, grade length and steepness, road conditions, and weather

Safe downgrade speed depends on the total weight of the vehicle and cargo, the grade’s length and steepness, road conditions, and weather. The driver must also obey any posted speed or maximum-safe-speed sign. Select the safe speed and proper low gear before beginning the descent, then use appropriate braking techniques.

Source: Mississippi Commercial Driver’s License Manual — § 2.16.1, “Select a ‘Safe’ Speed”

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