CDL School Bus Endorsement Practice Test 4 — Questions and Answers

Question 1: Which of the following is a good indicator that you are driving your bus too fast for a banked curve?

If your horn has stopped working.
If your bus leans toward the outside on a banked curve. (Correct answer)
If your air pressure gauge reads very high.
None of the listed answers.

Correct answer: If your bus leans toward the outside on a banked curve.

A banked curve is designed to help vehicles maintain stability at certain speeds. If a bus leans toward the outside of a banked curve, it indicates that the centrifugal force pulling the bus outwards is overcoming the inward force provided by the banking and tire grip. This is a clear sign that the bus is traveling too fast for the curve, increasing the risk of losing control or rolling over.

Question 2: While driving your bus, you should avoid _______.

Maintaining the speed limit.
Inspecting your bus before driving.
All of the listed answers.
Chatting with passengers. (Correct answer)

Correct answer: Chatting with passengers.

The primary responsibility of a bus driver is the safe operation of the vehicle and the well-being of its passengers. Engaging in conversations or 'chatting' with passengers can be a significant distraction, diverting the driver's attention from the road, traffic conditions, and potential hazards. Maintaining focus on driving is paramount to prevent accidents and ensure everyone's safety.

Question 3: While driving a bus, it's good practice to stop, at minimum, how many feet before a drawbridge?

100 ft.
200 ft.
50 ft. (Correct answer)
150 ft.

Correct answer: 50 ft.

When approaching a drawbridge, bus drivers are required to stop a safe distance away to ensure the bridge is safe to cross or to wait for it to open and close. The standard safety regulation for buses specifies stopping at least 50 feet before the drawbridge. This distance provides adequate space for observation and reaction time, preventing the bus from being caught on the bridge if it begins to open or if there's an unforeseen issue.

Question 4: As the bus driver, you are expected to announce which of the following to your passengers at a scheduled stop?

All of the listed answers. (Correct answer)
Bus number.
The location.
Next departure time.

Correct answer: All of the listed answers.

Effective communication is essential for passenger safety and convenience in public transportation. At scheduled stops, bus drivers are expected to clearly announce the current location to inform passengers where they are, the bus number for identification, and the next departure time to help passengers plan their journey. This practice ensures passengers are well-informed and can board or alight safely and efficiently.

Question 5: Inspect your bus _____.

During the summer only.
Whenever you feel like it.
Only once a month, preferably near the end of the month.
At the beginning and the end of each shift. (Correct answer)

Correct answer: At the beginning and the end of each shift.

Regular and thorough inspections are critical for the safe operation of a bus. Performing a pre-trip inspection at the beginning of each shift ensures that the vehicle is in safe working order before carrying passengers. A post-trip inspection at the end of the shift helps identify any issues that may have developed during operation, ensuring the bus is ready for the next driver or for maintenance. This consistent inspection schedule helps prevent breakdowns and ensures safety.

Question 6: Which mirrors are mounted at the left and right front corners of the bus at the side or the front of the windshield?

Outside convex mirrors.
Outside crossover mirrors.
Outside flat mirrors. (Correct answer)
None of the listed answers.

Correct answer: Outside flat mirrors.

Outside flat mirrors are standard equipment on buses and are typically mounted on the left and right sides, often near the front corners or windshield. These mirrors provide a true, undistorted view of the area directly to the sides and rear of the bus. They are crucial for observing traffic, lane changes, and maintaining awareness of the bus's immediate surroundings, especially for blind spots.

Question 7: The danger zone is the area on all sides of the bus where children are in the most danger of being hit either by another vehicle or their own bus. It may extend as much as ______ ft. from the front bumper.

45 ft.
50 ft.
30 ft. (Correct answer)
55 ft.
10 ft.

Correct answer: 30 ft.

The 'danger zone' around a school bus is a critical safety concept, referring to the areas where children are most at risk of being hit by the bus itself or by other vehicles. This zone extends a significant distance from all sides of the bus, with the area directly in front of the bus being particularly hazardous. Specifically, the danger zone can extend as much as 30 feet from the front bumper, emphasizing the need for extreme caution and awareness when children are present.

Question 8: If the school bus is so equipped, the school bus driver should activate the bus' alternating flashing amber warning lights in accordance with state law or at least ______ before the school bus stop.

500 ft.
100 ft.
200 ft. (Correct answer)
25 ft.
600 ft.

Correct answer: 200 ft.

To ensure the safety of students loading and unloading, school bus drivers must provide ample warning to other motorists. State laws typically require the activation of alternating flashing amber warning lights at a specific distance before a school bus stop. Activating these lights at least 200 feet before the stop gives other drivers sufficient time to see the warning, slow down, and prepare to stop, thereby reducing the risk of accidents.

Question 9: If you need to evacuate your vehicle, a safe place will typically be at least _____ off the road, in the direction of the oncoming traffic.

75 ft.
25 ft.
100 ft. (Correct answer)
50 ft.
60 ft.

Correct answer: 100 ft.

In an emergency requiring vehicle evacuation, such as a fire or hazardous material spill, it's crucial to move occupants to a safe distance away from the immediate danger. A general safety guideline is to evacuate at least 100 feet off the road, in the direction of oncoming traffic, if possible. This distance provides a buffer from the vehicle itself and any potential hazards, while also allowing evacuees to be visible to approaching traffic for their safety.

Question 10: When you back up your vehicle, you should assign someone as a lookout, who could warn you of ________.

Approaching persons.
Obstacles.
Other vehicles.
All of the listed answers. (Correct answer)

Correct answer: All of the listed answers.

Backing up a large commercial vehicle like a bus presents significant blind spots and hazards. Assigning a lookout is a critical safety measure to help the driver navigate safely. The lookout's role is to warn the driver of any potential dangers, including approaching persons who might not see the backing vehicle, fixed obstacles that could cause damage, and other vehicles in the path. This comprehensive warning ensures a safer backing maneuver.

Question 11: How should the outside left and right side flat mirrors be adjusted?

All of the listed answers. (Correct answer)
So you can see 200 ft. or 4 bus lengths behind the bus.
So you can see the rear tires touching the ground.
So you can see along the sides of the bus.

Correct answer: All of the listed answers.

Proper adjustment of outside flat mirrors is essential for a bus driver's visibility and safety. These mirrors should be set to allow the driver to see at least 200 feet behind the bus, providing a clear view of following traffic. Additionally, they must be adjusted to see along the sides of the bus and to see the rear tires touching the ground, which helps in judging clearances and avoiding obstacles. All these adjustments contribute to comprehensive situational awareness.

Question 12: How many feet behind the school bus should a bus driver be able to see through his outside left side flat mirror?

400 ft.
200 ft. (Correct answer)
300 ft.
250 ft.
350 ft.

Correct answer: 200 ft.

For optimal safety and situational awareness, a bus driver must have a clear view of the area behind their vehicle. The standard requirement for outside flat mirrors is that they should be adjusted to allow the driver to see at least 200 feet behind the bus. This distance provides sufficient time to react to following traffic, make safe lane changes, and monitor the overall traffic flow around the bus.

Question 13: What does ABS stand for?

Air brake system.
None of the listed answers.
Anti brake source.
Antilock braking system. (Correct answer)

Correct answer: Antilock braking system.

ABS stands for Antilock Braking System, a crucial safety feature in modern vehicles, including commercial buses. This system prevents the wheels from locking up during hard braking, allowing the driver to maintain steering control and reduce stopping distances, especially on slippery surfaces. ABS is designed to improve vehicle stability and control during emergency braking maneuvers.

Question 14: After you have finished your route you should _________.

None of the listed answers.
Fill your gas tank.
Call your loved ones.
Conduct a post-trip inspection. (Correct answer)

Correct answer: Conduct a post-trip inspection.

After completing a route, it is a mandatory safety procedure for bus drivers to conduct a post-trip inspection. This inspection helps identify any mechanical problems, damage, or missing items that may have occurred or been overlooked during the shift. It ensures the bus is in proper condition for the next driver or for maintenance, contributing to overall fleet safety and operational efficiency.

Question 15: Because students may drop an object near the bus during loading and unloading, you should _______.

Leave the students behind.
Watch carefully as they enter and exit the bus. (Correct answer)
All of the listed answers.
Ignore them.

Correct answer: Watch carefully as they enter and exit the bus.

The area around a school bus, especially during loading and unloading, is a high-risk zone for children. If a student drops an object, they might instinctively bend down to retrieve it, placing them out of the driver's sight and in the path of the bus. Therefore, it is crucial for drivers to watch students carefully as they enter and exit, ensuring they are clear of the bus and accounted for before moving.

Question 16: Where should you lead students if the bus is on fire?

To the right of the bus.
Upwind of the bus. (Correct answer)
To the left of the bus.
Downwind of the bus.

Correct answer: Upwind of the bus.

In the event of a bus fire, the primary concern is the safety of the students. When evacuating, students should be led to a safe location upwind of the burning bus. This is because smoke and potentially toxic fumes will be carried downwind, and moving upwind ensures that students are away from these harmful substances, minimizing their exposure and protecting their respiratory health.

Question 17: For school bus drivers, the danger zone may extend as much as ______ ft. from the front bumper.

30 ft. (Correct answer)
45 ft.
50 ft.
55 ft.
10 ft.

Correct answer: 30 ft.

The 'danger zone' around a school bus is the area where children are most vulnerable to being hit by the bus or other vehicles. This critical safety zone extends a significant distance from the bus, particularly from the front bumper. For school bus drivers, it is essential to remember that the danger zone can extend as much as 30 feet from the front bumper, requiring extreme vigilance during student loading and unloading.

Question 18: Students should evacuate the bus when ________.

The bus is stalled on a railroad-highway crossing.
The bus is on fire.
All of the listed answers. (Correct answer)
There is an imminent danger of collision.

Correct answer: All of the listed answers.

Student evacuation from a bus is a serious measure taken only when their safety is immediately threatened. This includes situations where the bus is on fire, as fire poses an immediate and severe danger. Evacuation is also necessary if the bus is stalled on a railroad-highway crossing, due to the extreme risk of collision with a train, or if there is an imminent danger of collision with another vehicle, which could result in serious injury.

Question 19: If you must back up your bus, you should assign someone to be lookout. What is the purpose of the lookout?

Tell you if the police are coming to arrest you.
All of the listed answers.
Warn you about obstacles, approaching persons and other vehicles. (Correct answer)
Instruct you how to back up the bus.

Correct answer: Warn you about obstacles, approaching persons and other vehicles.

When backing up a large vehicle like a bus, visibility is often limited, creating significant blind spots. A lookout is assigned to enhance safety by providing the driver with crucial information about the surroundings. Their primary purpose is to warn the driver of any obstacles in the path, approaching persons who might be unseen, and other vehicles that could be in the way, thereby preventing accidents and ensuring a safe maneuver.

Question 20: What color are advance warning signs at passive railroad-highway crossings?

Green.
Red.
Yellow. (Correct answer)
Blue.

Correct answer: Yellow.

Advance warning signs at passive railroad-highway crossings are designed to alert drivers to the presence of a railroad crossing ahead, even if it doesn't have active warning devices like flashing lights or gates. These signs are typically round and yellow with a black 'X' and 'RR' symbol. The yellow color signifies a general warning, prompting drivers to slow down, look, and listen for trains.

Question 21: Make sure the front area of enclosed trailers does not have _______.

Bulges.
Cracks.
All of the listed answers. (Correct answer)
Holes.

Correct answer: All of the listed answers.

When inspecting the front area of enclosed trailers, it's crucial to check for any signs of structural compromise or damage. This includes looking for bulges, which could indicate shifting cargo or internal pressure; cracks, which suggest material fatigue or impact damage; and holes, which could lead to cargo loss or exposure to elements. Identifying any of these issues is vital for ensuring the trailer's integrity and the safety of its contents and other road users.

Question 22: As you are checking your hydraulic brakes, you should pump the brake pedal three times and then hold it for how many seconds?

5 seconds. (Correct answer)
30 seconds.
23 seconds.
15 seconds.
10 seconds.

Correct answer: 5 seconds.

To properly check hydraulic brakes, the driver should pump the brake pedal three times to build up pressure, and then hold it down firmly. The pedal should not move more than an inch or two over a period of 5 seconds. If the pedal sinks further or continues to drop, it indicates a potential leak in the hydraulic system, which requires immediate attention before driving.

Question 23: Which of the following is emergency equipment you should carry with you at all times?

Spare electrical fuses.
All of the listed answers. (Correct answer)
Fire extinguisher.
Warning devices for parked vehicles.

Correct answer: All of the listed answers.

Commercial vehicle drivers, including bus drivers, are legally required to carry specific emergency equipment to ensure safety and preparedness for various incidents. This essential equipment typically includes a fire extinguisher for fire suppression, spare electrical fuses to address electrical malfunctions, and warning devices (such as reflective triangles or flares) to alert other motorists if the vehicle is stopped on the roadside. Having all these items readily available is crucial for responding effectively to emergencies.

Question 24: How many versions of the Class A Pre-trip Inspection test exist?

Three.
Eight.
Two.
Four. (Correct answer)

Correct answer: Four.

The CDL Class A pre-trip inspection test has four distinct versions (A, B, C, D). These different versions are used to ensure that applicants have a comprehensive understanding of vehicle inspection rather than simply memorizing a single sequence. Each version covers the same critical components but may present them in a different order or focus on specific items within a category.

Question 25: If your fifth wheel plate is not well lubricated, this could cause ___________.

Steering problems. (Correct answer)
Less air to reach the emergency line.
None of the listed answers.
Nothing.

Correct answer: Steering problems.

A poorly lubricated fifth wheel plate can create excessive friction between the tractor and trailer. This friction restricts the smooth articulation of the trailer, making it difficult to steer, especially during turns. This can lead to significant steering problems and potentially dangerous handling issues for the driver.

CDL School Bus Endorsement Practice Test 4

Which of the following is a good indicator that you are driving your bus too fast for a banked curve?