Practice Exam Questions And Correct

CDL School Bus (S) Written Knowledge Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the most important reason for conducting a pre-trip

inspection?

• To check if the bus looks clean
• To ensure the bus meets safety standards before driving
• To see if the tires are stylish
• To make the trip faster
• To ensure the bus meets safety standards before driving

A pre-trip inspection ensures that all systems and equipment are functioning correctly, helping prevent accidents.

• How often must you check your mirrors while driving a school bus?
• Every 5 minutes 1 / 4

• Only when turning
• Frequently and constantly while driving
• Only on highways
• Frequently and constantly while driving

Constant mirror checks help the driver monitor students, traffic, and potential hazards.

3. When approaching a railroad crossing with no signals, you should:

• Speed up to cross quickly
• Stop within 15–50 feet of the tracks and look both ways
• Honk and continue without stopping
• Ignore it if no train is visible
• Stop within 15–50 feet of the tracks and look both ways

Stopping at unmarked crossings ensures you can see approaching trains and prevent collisions.

• What should you do if your bus starts to skid on ice?
• Slam on the brakes
• Turn the steering wheel in the opposite direction
• Turn the steering wheel in the direction of the skid
• Accelerate
• Turn the steering wheel in the direction of the skid

Steering into the skid helps regain control and prevents spinouts.

5. When loading or unloading students, you should:

• Always use the same side of the road 2 / 4

• Stop in a safe location and use hazard lights
• Have students run to the bus quickly
• Wait for all traffic to stop before signaling
• Stop in a safe location and use hazard lights

Stopping safely and using hazard lights protects students and alerts other drivers.

• What is the proper hand signal for a left turn?
• Left arm straight out horizontally
• Left arm bent upward
• Left arm bent downward
• Right arm straight out horizontally
• Left arm straight out horizontally

This standard hand signal communicates your intention to turn left to other drivers.

• When is it acceptable to pass a school bus that is stopped with red

lights flashing?

• On a divided highway with a median
• Only when you are in a hurry
• Always, if no children are visible
• Never
• On a divided highway with a median

Traffic traveling in the opposite direction on divided highways with physical medians does not have to stop. 3 / 4

• Which of these is the safest speed when driving on wet roads?
• The posted speed limit
• Faster than normal to avoid hydroplaning
• Slower than normal, adjusting to conditions
• Only speed up in curves
• Slower than normal, adjusting to conditions

Slowing down on wet roads reduces the risk of losing control and hydroplaning.

• When should you use your low beam headlights?
• Only in the city
• In fog, rain, snow, or when following another vehicle
• Only on the highway
• Whenever you feel like it
• In fog, rain, snow, or when following another vehicle

Low beams improve visibility and reduce glare for other drivers in adverse conditions.

• How far in advance should you signal before turning in a school

bus?

• 50 feet
• 100 feet
• 200 feet
• 500 feet
• / 4