Bus

This endorsement is required for driving a school bus. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice.. Read More

This endorsement is required for driving a school bus. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. To pass, the applicant must answer at least 16 questions correctly. Each question has three possible answer choices. Test questions come from the Louisiana Commercial Driver License Manual. Questions come from chapters covering Transporting PAssengers, Air Brakes, School Buses, Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving. The School Bus endorsement can be used with the Class A, B or C CDL.

Number of Question
Passing Score

1. When operating a school bus, mirrors should be adjusted:

Explanation
It is critical to the safe operation of a school bus that mirrors be properly adjusted. Always check each mirror before operating the bus.

2. What is brake lag?

Explanation
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.

3. Passengers may not stand in front of the:

Explanation
On a bus designed to carry standing passengers, no passengers may stand in front of the rear of the driver's seat. Any such bus must have a line on the floor, or some other marking, that indicates where passengers may not stand. This is called a standee line.

4. During the vehicle inspection test, you must be able to do all of the following, except:

Explanation
During the pre-trip vehicle inspection test, you will be asked to indicate where the dipstick is located. You will need to show that the oil level is within a safe operating range and above the refill mark.

5. The leakage rate for a single vehicle with air brakes should be no more than ____ in one minute during a static leakage test.

Explanation
When performing a static leakage test on a single vehicle with air brakes, the leakage rate should be no more than 2 psi in a minute. If the air leaks from the air brake system at a quicker rate, the vehicle should not be driven because something likely needs to be repaired.

6. Anti-Lock Braking Systems (ABS):

Explanation
If equipped, ABS is in addition to a vehicle's normal braking system and does not increase or decrease the braking power of any other system. ABS only activates when a vehicle's wheels are about to lock.

7. What do air brakes use to make the brakes work?

Explanation
Many large CMVs are equipped with air brakes. An air braking system uses compressed air to operate.
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