Knowledge Test Class B #1
Class B Driving Test | Missouri 2025 #1 Page 6 of 7
Train for FREE online with our Missouri class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a MO CDL class B permit in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class B requirements may vary from state to state.
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36 . Being considered a security threat is grounds to:
You must undergo a background check to obtain a hazardous materials endorsement. You will be denied the endorsement, or lose an existing one, if the Transportation Security Administration (TSA) deems you to pose a security threat.
37 . If there is a cargo fire in a box trailer:
The doors of a trailer should be not be opened in the event of a cargo fire, especially if the cargo includes hazardous materials. Opening trailer doors would increase the fire's oxygen supply, potentially causing the fire to increase in size.
38 . A driver who stops at a green light could be:
It is important to observe other drivers' actions and identify clues that a person could be driving impaired. Drivers who have had too much to drink, are sleepy, are on drugs, or are ill can present hazards to other drivers. One sign that a driver may be impaired is that they stop in inappropriate places, such as at green traffic lights.
39 . Water that has collected on a roadway can cause:
The risk of hydroplaning begins when water has collected on the surface of a road.
40 . A fatigued driver:
Fatigued drivers are slower to see or react to hazards than drivers who are not fatigued. Drivers are impaired in their ability to make critical decisions when they are driving drowsy.
41 . When backing with a trailer:
When backing, you should pull forward to reposition your vehicle whenever needed. Drift should be corrected immediately by turning the steering wheel in the direction of the drift.
42 . One way to prevent drowsiness while driving is to:
Driving while fatigued can be extremely dangerous. Strategies for preventing drowsiness while driving include getting a full night's sleep before a trip; having someone ride with you; scheduling trips for times during which you are normally awake; and avoiding medications that may cause drowsiness. Exercising regularly can increase your energy levels and make you less likely to become tired while driving.
See the exact questions that will be on the 2025 Missouri DMV exam.
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2025 Missouri | Frequently Asked Questions
A CDL Class A license in Missouri is defined as a commercial driver's license that allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, given that the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed is over 10,000 pounds.
A Class A Commercial Driver's License (CDL) in Missouri allows operation of any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed exceeds 10,000 pounds. Examples include tractor-trailers, truck and trailer combinations, tank vehicles, livestock carriers, and flatbeds.
To obtain a Class A CDL in Missouri, you must be at least 18 years old (21 for interstate travel), possess a valid non-commercial driver's license, and pass a vision test. You also need to pass the written knowledge test and skills tests, which include a pre-trip vehicle inspection, a basic vehicle control test, and an on-road driving exam.
In Missouri, to qualify for a Class A Commercial Driver's License (CDL), you must be at least 18 years old. However, if you plan on driving across state lines or want to qualify to drive a vehicle carrying hazardous materials, you must be at least 21 years old.
While specific endorsements are not required to obtain a Class A CDL in Missouri, they can provide additional driving privileges. Endorsements include T for double/triple trailers, P for passenger vehicles, N for tank vehicles, H for hazardous materials, S for school bus, and X for a combination of tank vehicle and hazardous materials. Each endorsement requires passing additional tests.
The Class A CDL skills test in Missouri encompasses three parts: the Vehicle Inspection Test, the Basic Controls Test, and the Road Test. The Vehicle Inspection Test checks your ability to assess the safety of your vehicle. The Basic Controls Test evaluates your control over the vehicle. The Road Test examines your on-road driving skills.
Yes, there are limitations on Class A CDL license holders in Missouri. These could include restrictions related to corrective lenses, automatic transmission, no passengers, intrastate driving only, or no air brakes. Restrictions are based on the driver's abilities, the type of vehicle used during the driving test, and any medical conditions.
In Missouri, the written Class A CDL test is primarily administered in English. However, some locations may offer the test in Spanish. It's important to check with your local testing center for language options. Please note, even if the test is taken in another language, federal regulations require all CDL holders to read and speak English.
Yes, you can request accommodations for the Class A CDL written test in Missouri if you have a disability. The Missouri Department of Revenue is committed to making testing accessible. You should contact the department or your local testing center ahead of time to discuss your needs and arrange for appropriate accommodations.
Yes, you can retake the Class A CDL written test in Missouri if you don't pass on your first attempt. You must wait at least one day before retaking the test. However, if you fail the test four times, you have to wait a minimum of 30 days before your next attempt. Additional fees may also apply for each retest.
