FREE Air Brakes Endorsement Test Online | Missouri 2024 Page 2 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 2021, 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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7 . Air tank drains should:
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.
8 . The ____ are activated by an electric switch that is triggered by the brake pedal.
In a vehicle with air brakes, the brake lights are activated when the brake pedal is pushed and air pressure moves an electric switch. With the application of air pressure, the switch will then turn on the brake lights.
9 . If the safety relief valve in the air brake system releases air:
An air brake system has a safety relief valve, which releases air from the tanks if the pressure gets too high. If the valve must operate, something in the system is wrong and should be addressed by a mechanic.
10 . The rods in S-cam brakes move the slack adjusters when air pressure is added to the brake chambers. This air pressure is added to the chambers when the driver:
When pressing the brake pedal in a vehicle with S-cam brakes, air will enter the brake chambers. The added air pressure will push out the rods and move slack adjusters, twisting the brake camshafts.
11 . If the low air pressure warning signal comes on, you should:
If the low air pressure warning signal comes on while you are driving a vehicle with air brakes, you should immediately bring the vehicle to a safe stop while you are still able to control the brakes. Inspect and repair the brakes as soon as possible.
12 . Do not operate a vehicle if any brake drums have cracks that are larger than ____ of the width of the friction area.
Before beginning a trip, it is important to check the brake drums during your walk-around inspection. It is unsafe to drive if any brake drum has a crack more than one half of the width of the friction area.
See the exact questions that will be on the 2024 Missouri DMV exam.
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Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
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2024 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.
