Air Brakes #2
Air Brakes Endorsement Test | Missouri 2024 #2 Page 4 of 4
Train for FREE online with our Missouri CDL air brake 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 Class A/Class B driver 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 the requirements for CDL may vary from state to state.
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19 . Friction in an S-cam brake is caused when the brake shoes and linings:
Friction inside a brake drum is caused when the brake shoes and linings push against the inside of the drum. The friction in the drums will slow and stop the vehicle.
20 . Manual air tank drains should be:
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.
21 . A wig wag is:
Vehicles with air brakes are required to be equipped with a low pressure warning device. A wig wag is a type of low air pressure warning device. This device drops a mechanical arm into the driver's view if the pressure in the tanks drops to a level between 55 and 75 psi.
22 . Some water and compressor oil is usually found in the compressed air within an air brake system. The water and compressor oil:
If water and compressor oil are left to build up in an air brake system, the system can be damaged. Air storage tanks are equipped with drains to allow this accumulation to be removed. Manually controlled drains should be operated at the end of each day of driving.
23 . What is brake lag?
Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work.
24 . What does an air compressor do in an air brake system?
In an air brake system, the air compressor pumps air into the air storage tanks. The air compressor is controlled by the air compressor governor.
25 . Air storage tanks:
In an air brake system, the air storage tanks hold compressed air to be used by the brakes. The number and size of air tanks varies among vehicles.
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2024 Missouri | Frequently Asked Questions
To secure a CDL Bus endorsement in Missouri, you must first hold a valid Commercial Driver's License (CDL). Then, pass the Passenger Endorsement Knowledge Test and the School Bus Endorsement Knowledge Test at a Missouri State Highway Patrol examination station. Finally, complete a driving skills test in the type of vehicle you wish to drive.
To obtain a CDL Bus license in Missouri, you must be at least 18 years old, possess a valid Missouri driver's license, pass a vision test, and complete a medical examination. You'll need to pass the CDL general knowledge test, the passenger transport test, and the school bus endorsement test. Finally, you must successfully complete a skills test in a bus.
While Missouri doesn't require specific training for a CDL Bus endorsement, it's recommended to complete a professional training program. This helps prepare for the written knowledge and skills tests. You must pass the Passenger Endorsement and School Bus Endorsement knowledge tests, and a driving skills test in a bus-like vehicle. Prior experience driving large vehicles can also be beneficial.
CDL Bus licenses in Missouri fall under Class B or Class C. Class B is for vehicles designed to transport 16 or more passengers, including the driver, or vehicles over 26,000 pounds. Class C is for vehicles designed to transport 16 or more passengers, including the driver, but weighing less than 26,000 pounds. Both require a passenger (P) endorsement.
No, you cannot use your personal vehicle for the CDL Bus driving test. The vehicle used must match the class and type of vehicle that matches the CDL license you're applying for. Therefore, for a CDL Bus endorsement, you must test in a commercial bus-like vehicle that is representative of the type of bus you'll be driving.
During the CDL Bus driving test in Missouri, various skills are evaluated. These include pre-trip vehicle inspection, basic vehicle control, and on-road driving. On-road driving includes right and left turns, intersections, railway crossings, curves, and various types of roadways. Also evaluated are skills like stopping at designated points, backing up safely, and responding appropriately to traffic signals and signs.
Yes, there are additional medical requirements for a CDL Bus endorsement in Missouri. Applicants must pass a Department of Transportation (DOT) physical examination every 24 months. The physical includes vision and hearing tests, blood pressure check, and an assessment of physical abilities necessary for driving a commercial vehicle safely.
No, it is not permissible to transport passengers without a valid CDL Bus endorsement in Missouri. The law requires drivers who operate commercial vehicles transporting 16 or more passengers, including the driver, to hold a valid CDL with a passenger (P) endorsement. Driving without the appropriate endorsement could lead to heavy fines and penalties.
In Missouri, you can add a CDL Bus endorsement to your existing license. You don't need to apply for a new license. However, you must pass the Passenger Endorsement written test and the skills test in a vehicle representative of the type of bus you'll be driving. Always check with the Missouri Department of Revenue for specific requirements.
Yes, drivers with a CDL Bus endorsement in Missouri are subject to certain restrictions. They must maintain a clean driving record, pass regular physical examinations, and comply with drug and alcohol testing rules. Violations can result in suspension or revocation of the endorsement. Also, drivers must not exceed the passenger capacity specified for their vehicle.
