Combination #1
Combination Vehicles Practice Test | Missouri 2024 #1
Train for FREE online with our Missouri CDL combination vehicle 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 combination license in 2024, 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 DMV requirements for issuing a combination license may vary from state to state.
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1 . A tractor protection valve:
A tractor protection valve keeps air in a tractor or truck air brake system should the trailer break away or develop a bad leak. The valve will close automatically if the pressure drops to an unsafe level.
2 . In a double or triple combination, the ____ trailer should be directly behind the cab.
When positioning trailers in a combination, the most heavily-loaded trailer should be the closest to the tractor. The lightest trailer should be positioned in the rear.
3 . How much space should be between the upper and lower fifth wheel?
Before a trip, be sure to inspect all couplings. There should be no space between the upper and lower fifth wheel.
4 . When coupling, you should:
When coupling air brake hoses, you should make sure the proper pairs of gland hands are connected. They are sometimes color-coded to help drivers avoid mistakes. Typically, blue is used for service lines and red is used for emergency lines.
5 . Shut-off valves:
Shut-off valves are used in air supply lines to control the passage of air from one trailer to another. The rear shut-off valve should always be closed to prevent air from leaving the braking system.
6 . If the emergency air line loses pressure:
The tractor protection valve keeps air in the trailer's braking system should the trailer break away or develop a leak. A loss of air pressure in the emergency line will cause the tractor protection valve to open and the emergency trailer brakes to activate.
7 . If color-coded, which color is used to identify service lines?
Air lines are sometimes color-coded to help drivers avoid mistakes when coupling glad hands. Typically, blue is used for service lines and red is used for emergency lines.
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2024 Missouri | Frequently Asked Questions
A CDL Class B license in Missouri permits the holder to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds. This covers vehicles like buses, dump trucks, and straight trucks. You must pass a knowledge test and skills test to obtain this license.
A Class B CDL license in Missouri allows the holder to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or a vehicle towing another not exceeding 10,000 pounds. This includes large buses, segmented buses, dump trucks, straight trucks, delivery trucks, and utility trucks. It does not include tractor-trailers.
To acquire a Class B CDL license in Missouri, you must be at least 18 years old (21 for interstate driving), possess a valid non-commercial driver's license, pass a vision test, and obtain a medical certificate. You'll also need to pass a written knowledge test and a skills test, which includes a pre-trip vehicle inspection, basic vehicle control, and on-road driving.
In Missouri, you must be at least 18 years old to qualify for a Class B Commercial Driver's License (CDL) for intrastate driving (within Missouri borders). However, if you plan to drive interstate (across state or country borders), you must be at least 21 years old.
Specific endorsements aren't necessary for a Class B CDL license, but they can expand your driving capabilities. Endorsements like passenger and school bus, tank vehicle, double/triple trailers, and hazardous materials can be added after passing additional written and skills tests. Each endorsement may have additional requirements. Check with your local DMV for specifics.
The Class B CDL skills assessment in Missouri includes three main parts: a pre-trip vehicle inspection to check your understanding of your vehicle and its safety, a basic vehicle control test to assess your ability to maneuver and control the vehicle, and an on-road driving test to evaluate your driving skills in various traffic situations and road conditions.
Yes, Class B CDL license holders in Missouri are limited to driving single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or a towing vehicle not exceeding 10,000 pounds GVWR. They're also restricted from driving a Class A vehicle unless they have the appropriate endorsement. Other restrictions may apply based on endorsements and medical conditions.
Yes, it is possible. In Missouri, the written Class B CDL test can be taken in English or Spanish. However, Federal regulations require that anyone applying for a commercial driver's license must be able to read and understand English well enough to converse with the general public, understand highway signs and signals, respond to official inquiries and make entries on reports and records.
Yes, test accommodations can be requested for the Class B CDL written exam in Missouri due to disability. These may include accessibility features or alternative testing formats. It's important to make the request at the time of scheduling your exam and provide appropriate documentation to support your request. Contact your local DMV for specific procedures.
Yes, you can retake the Class B CDL written test in Missouri if you fail on your first attempt. Applicants must wait at least one day before retesting. There is a $25 retest fee for each attempt. If you fail three times, you must wait 30 days before your next attempt. It's recommended to study thoroughly to ensure success on the next try.
