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Ohio CDL Passenger study materials
Ohio CDL Passenger study resources

Ohio CDL Passenger practice questions

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Question 1Driving Safely with Passengers

Before a passenger-carrying vehicle is put into service each day, the driver must normally complete which inspection?

  1. A walk-around pre-trip inspection of the vehicle Correct answer.
  2. A full engine teardown inspection
  3. A load-weight certification by a mechanic
  4. A brake-fluid replacement service

Explanation

Federal rules require the driver to inspect the bus before operating it each day, checking items such as brakes, lights, tires, mirrors, emergency exits, and passenger safety equipment. This walk-around lets the driver catch defects before passengers board.

Question 2Driving Safely with Passengers

During a pre-trip inspection, you find that the emergency exit door does not open freely. What is the correct action?

  1. Report the defect and keep the bus out of service until it is repaired Correct answer.
  2. Operate the route as long as the regular door works
  3. Ask a passenger to force the door open at each stop
  4. Place a sign on the door and complete the run

Explanation

Emergency exits must operate freely before the bus carries passengers. A defective exit is an out-of-service condition that must be reported and repaired, because passengers may need that exit in a crash or fire.

Question 3Driving Safely with Passengers

When you stop to load or unload passengers, where should you position the bus?

  1. One lane away from the curb to keep traffic moving
  2. Wherever the front door lines up with a crosswalk
  3. As close to the curb or designated stop as practical Correct answer.
  4. In the center lane with hazard lights on

Explanation

Pulling close to the curb or designated stop reduces the distance passengers must walk in the roadway and limits exposure to traffic. Stopping in a travel lane or crosswalk forces riders into unsafe paths.

Question 4Driving Safely with Passengers

A passenger is standing in the aisle while the bus is moving. What is your responsibility as the driver?

  1. Require passengers to remain seated or use handholds whenever the bus is in motion Correct answer.
  2. Ask the passenger to stand near the front door
  3. Ignore it because adults are responsible for themselves
  4. Speed up so the trip ends sooner

Explanation

Drivers are responsible for passenger safety and must instruct riders to stay seated or hold a secure handrail while the bus is moving. Sudden stops or turns can throw a standing passenger and cause serious injury.

Question 5Driving Safely with Passengers

You are driving a bus with passengers and approach a curve marked with an advisory speed lower than the posted limit. What should you do?

  1. Accelerate through the curve to improve traction
  2. Maintain the posted limit because it is legally allowed
  3. Slow to at or below the advisory speed before entering the curve Correct answer.
  4. Brake hard only after the curve begins

Explanation

Advisory speeds on curves reflect the safe speed for the road geometry, and a loaded bus carries more weight and a higher center of gravity than a car. Reducing speed before the curve keeps the vehicle stable and protects standing or seated passengers.

Question 6Driving Safely with Passengers

When stopping a bus at a railroad crossing to check for trains, the driver should:

  1. Sound the horn continuously while crossing
  2. Rely on the crossing gate alone
  3. Open the door and listen, and look in both directions Correct answer.
  4. Turn off the engine and wait for a signal

Explanation

Opening the door or window lets the driver hear an approaching train, and looking both ways confirms the track is clear. Sight and hearing together give the best warning at crossings without active signals.

Question 7Driving Safely with Passengers

Which of these is a proper way to handle a disruptive passenger who refuses to follow safety rules?

  1. Stop the bus in a safe place and address the situation calmly Correct answer.
  2. Brake sharply to make a point
  3. Continue driving while arguing with the passenger
  4. Leave the bus running and walk away

Explanation

A driver should stop in a safe location before dealing with a disturbance so attention is not divided between the passenger and the road. Calm communication and, if needed, requesting assistance are the safe responses.

Question 8Driving Safely with Passengers

Why should a bus driver check the mirrors frequently while carrying passengers?

  1. To check the fuel gauge
  2. To monitor passenger activity and the traffic around the vehicle Correct answer.
  3. To read the route schedule
  4. To adjust the radio station

Explanation

Mirrors let the driver watch boarding and alighting passengers, see if anyone has fallen or is standing in the aisle, and track vehicles in adjacent lanes. Regular mirror checks are a core part of safe passenger-vehicle operation.

Question 9Driving Safely with Passengers

A bus with passengers must stop on the shoulder of a highway because of a mechanical problem. What should the driver do first?

  1. Continue driving slowly to the next exit
  2. Turn on hazard warning lights and move passengers to a safe area away from traffic Correct answer.
  3. Leave passengers on the bus and walk for help
  4. Open the hood and begin repairs immediately

Explanation

Hazard lights warn approaching traffic, and moving passengers to a protected area away from the travel lanes reduces the chance of a secondary crash. Only after securing the scene should the driver call for assistance.

Question 10Driving Safely with Passengers

A passenger bus is involved in a collision with no apparent injuries. What is the driver's immediate duty?

  1. Stop, secure the scene, and check on passengers Correct answer.
  2. Continue the route if the bus still runs
  3. Drive to the terminal and report it later
  4. Exchange insurance information and leave

Explanation

After any collision the driver must stop, protect the scene with warning devices or hazards, and check passengers for injuries. Leaving the scene or delaying the report can violate law and endanger injured riders.

Question 11Driving Safely with Passengers

When a bus is fully loaded, how does stopping distance typically compare with an empty bus?

  1. It stays exactly the same
  2. It becomes shorter on wet pavement
  3. It decreases because of better traction
  4. It increases because of the added weight Correct answer.

Explanation

Extra passenger weight increases the momentum the brakes must overcome, so a loaded bus generally needs more distance to stop. Drivers should increase following distance when the bus is full.

Question 12Driving Safely with Passengers

You are approaching a bus stop where several passengers are waiting close to the curb. What is the safest approach?

  1. Stop in the traffic lane and wave passengers over
  2. Reduce speed early and stop smoothly with the door near the curb Correct answer.
  3. Approach at full speed and brake hard at the stop
  4. Sound the horn to move waiting passengers back

Explanation

Slowing early and stopping smoothly gives waiting passengers time to react and keeps the bus under control. A hard stop can cause riders to fall and may startle people near the curb.

Question 13Driving Safely with Passengers

What is the purpose of the standby or parking brake when loading passengers on a slope?

  1. To improve fuel economy during the stop
  2. To warm the brakes before departure
  3. To hold the bus stationary while passengers board or exit Correct answer.
  4. To signal other drivers that a stop is in progress

Explanation

On a grade, the parking brake keeps the bus from rolling while the driver's attention is on passengers. Relying only on the service brake or the driver's foot is unsafe during boarding.

Question 14Driving Safely with Passengers

A rider using a wheelchair is boarding your bus. Which practice supports safe boarding?

  1. Load the wheelchair through the rear emergency door
  2. Leave the wheelchair unsecured in the aisle
  3. Ask the rider to stand and walk to a seat
  4. Secure the wheelchair and use the lift or ramp properly Correct answer.

Explanation

Wheelchair users should board using the lift or ramp, and the chair must be secured with the approved tiedown system before the bus moves. An unsecured chair can become a projectile in a sudden stop.

Question 15Driving Safely with Passengers

When should a driver activate the four-way hazard lights on a passenger bus?

  1. When stopped or moving slowly in a way that warns other traffic Correct answer.
  2. Only during heavy rain
  3. Only when backing into the terminal
  4. Whenever the bus is traveling at highway speed

Explanation

Hazard lights warn other drivers that the bus is a temporary obstacle, such as when stopped to load passengers or disabled. Using them at normal highway speed can confuse other drivers about your intentions.

Question 16Driving Safely with Passengers

Why must a driver avoid sudden lane changes while passengers are standing or moving in the aisle?

  1. Lane changes are prohibited for passenger buses
  2. Passengers can see the mirrors from the aisle
  3. Abrupt moves can throw passengers off balance and cause falls Correct answer.
  4. The bus cannot signal during a lane change

Explanation

A bus moves its passengers whenever it changes direction, and a sharp lane change can knock standing riders down. Smooth steering and signaling give passengers time to brace or sit.

Question 17Driving Safely with Passengers

A passenger becomes ill and needs medical help while the bus is moving. What is the best course of action?

  1. Pull over safely, assess the situation, and call for emergency help if needed Correct answer.
  2. Stop in the travel lane and open the door
  3. Speed up to reach the terminal faster
  4. Ask other passengers to handle it while you keep driving

Explanation

The driver should find a safe place to stop so full attention can go to the ill passenger, then call emergency services if the condition warrants it. Continuing at speed or stopping in a live lane creates new hazards.

Question 18Driving Safely with Passengers

On a rainy day, a loaded bus begins to hydroplane. What should the driver do?

  1. Shift to neutral and coast
  2. Ease off the accelerator and avoid hard braking or steering Correct answer.
  3. Brake firmly and turn sharply to the shoulder
  4. Accelerate to push through the water

Explanation

Hydroplaning means the tires have lost contact with the road, and abrupt braking or steering can trigger a skid. Easing off the accelerator lets the tires regain contact gradually.

Question 19Driving Safely with Passengers

Why is a bus with passengers especially vulnerable to rollover on a ramp or sharp curve?

  1. Its engine is mounted in the rear
  2. Its brakes are larger than those of cars
  3. Its high center of gravity and heavy load reduce stability Correct answer.
  4. Its tires are wider than those of cars

Explanation

Buses carry passengers high above the road, raising the center of gravity, and a full load increases the forces that tip the vehicle outward in a turn. Taking ramps and curves at a reduced speed is essential.

Question 20Driving Safely with Passengers

A passenger reports that another rider is smoking in the restroom of the bus. What should the driver do?

  1. Ignore the report and keep driving
  2. Announce over the intercom that smoking is allowed
  3. Stop safely, investigate, and enforce the no-smoking rule Correct answer.
  4. Open the restroom door while driving

Explanation

Smoking aboard a passenger bus is prohibited and poses a fire risk, so the driver should stop in a safe place and address the violation. Handling it while driving would divide the driver's attention.

Question 21Driving Safely with Passengers

During a pre-trip check, a driver finds a tire with a deep sidewall cut showing cords. What should happen?

  1. The tire can be used if it holds air
  2. The cut can be covered with tape
  3. The bus can run if the route is short
  4. The bus stays out of service until the tire is replaced Correct answer.

Explanation

A cut exposing cords means the tire is structurally damaged and at risk of failure, especially under the weight of passengers. The vehicle must be taken out of service until the tire is replaced.

Question 22Driving Safely with Passengers

You are driving a bus on a downgrade with passengers aboard. What is the safest braking technique?

  1. Shift to neutral and coast to save fuel
  2. Select a lower gear and use controlled braking to avoid overheating Correct answer.
  3. Ride the brakes continuously down the grade
  4. Apply the parking brake at the top of the grade

Explanation

Using a lower gear lets engine compression help control speed and reduces continuous brake use that can cause fade. Riding the brakes on a long downgrade overheats them and can leave no stopping power.

Question 23Driving Safely with Passengers

A bus is stopped to unload passengers when a following vehicle fails to slow. What is the driver's best defensive action?

  1. Sound the horn and remain in the lane
  2. Watch the mirrors and be ready to move or warn passengers Correct answer.
  3. Turn off the hazard lights to reduce confusion
  4. Open the door wide and let passengers step out

Explanation

A driver stopped in traffic should monitor the mirrors for vehicles that may not stop and be prepared to warn passengers or take evasive action. This awareness is the best defense against a rear-end collision at a stop.

Question 24Driving Safely with Passengers

After a collision, a passenger is unconscious but breathing. How should the driver manage the situation while waiting for emergency responders?

  1. Leave the passenger alone and direct traffic
  2. Give the passenger water to revive them
  3. Help the passenger stand and walk to a bench
  4. Keep the passenger still and monitor breathing without moving them unnecessarily Correct answer.

Explanation

An unconscious passenger may have a spinal injury, so unnecessary movement can worsen it. The driver should monitor breathing and keep the person still until trained responders arrive.

Question 25Driving Safely with Passengers

Why should a driver avoid using cruise control on a passenger bus in wet or icy conditions?

  1. It uses more fuel in cold weather
  2. It prevents the use of turn signals
  3. It disables the hazard lights
  4. It can accelerate the vehicle when traction is lost Correct answer.

Explanation

Cruise control may try to maintain speed if the wheels slip, causing a sudden acceleration and loss of control on a slick surface. Manual throttle control keeps the driver in charge of speed during low-traction conditions.

Question 26Driving Safely with Passengers

Before pulling away from a bus stop where passengers have just boarded, what is the most important final check for a passenger bus driver?

  1. Check the left mirror and blind spots for passengers still approaching or traffic in the adjacent lane Correct answer.
  2. Turn on the interior dome lights so riders can find seats
  3. Sound the horn twice to alert nearby vehicles
  4. Count the passengers to confirm the fare total

Explanation

Before moving, the driver must confirm that no late-arriving passenger is still stepping toward the door and that the adjacent lane is clear. A final scan of the left mirror and blind spots catches both hazards. The door should be closed and riders seated or braced before the bus moves.

Question 27Driving Safely with Passengers

What is the main reason a passenger bus driver must secure the aisle before departure?

  1. To allow the driver to count passengers faster
  2. To keep the bus within its legal weight limit
  3. To prevent riders from tripping or being thrown into hard fixtures if the bus stops suddenly Correct answer.
  4. To reduce the amount of fuel the bus consumes

Explanation

Loose items and standing riders in the aisle become hazards when the bus brakes or swerves. A sudden stop can throw a person into seats, stanchions, or the fare box. Keeping the aisle clear and riders seated or holding a handhold reduces injury risk.

Question 28Driving Safely with Passengers

A passenger bus is traveling at highway speed when a tire suddenly blows out. What should the driver do first?

  1. Accelerate briefly to stabilize the bus before slowing
  2. Steer sharply toward the shoulder to get out of the traffic lane
  3. Grip the wheel firmly, keep the bus straight, and ease off the accelerator Correct answer.
  4. Brake hard immediately to stop as quickly as possible

Explanation

A blowout at speed can make the bus pull toward the failed tire, so the driver must hold the wheel firmly and keep the vehicle tracking straight. Easing off the accelerator lets speed bleed off gradually. Hard braking or sharp steering can cause a loss of control or a rollover.

Question 29Driving Safely with Passengers

When a passenger bus must be backed up, what practice best protects riders and people outside the bus?

  1. Back only when necessary, and use a spotter or get out and check behind the bus Correct answer.
  2. Rely on the backup camera alone and skip other checks
  3. Back quickly so the maneuver is over before traffic arrives
  4. Sound the horn continuously while reversing at normal speed

Explanation

Backing a passenger bus is inherently risky because the driver's view behind the vehicle is limited. The safest approach is to avoid backing whenever possible, and when it is necessary, to use a spotter or personally check the area behind the bus first. Reversing slowly with all available aids gives pedestrians time to move clear.

Question 30Driving Safely with Passengers

While driving with passengers on board, a driver approaches a green traffic light that has been green for a long time. What is the safest response?

  1. Change lanes to get around slower traffic ahead
  2. Accelerate to pass through before it changes
  3. Cover the brake and prepare to stop in case the light changes Correct answer.
  4. Maintain speed and assume the light will stay green

Explanation

A light that has been green for a while is likely to change soon. Covering the brake and preparing to stop gives the driver time to respond smoothly, which protects standing or seated passengers from a sudden jolt. Accelerating or assuming the light will stay green invites a hard stop or a red-light violation.

Question 31Driving Safely with Passengers

Why should a passenger bus driver use progressive shifting and smooth acceleration when carrying riders?

  1. It keeps passengers from being thrown off balance and reduces the chance of falls in the aisle Correct answer.
  2. It is required for the bus to pass an emissions test
  3. It allows the driver to skip pre-trip brake checks
  4. It shortens the route and saves time on each trip

Explanation

Smooth acceleration and shifting limit the forces that push standing riders and walking passengers off balance. Sudden surges are a common cause of falls in the aisle. Gentle control inputs also reduce wear on the drivetrain and brakes.

Question 32Driving Safely with Passengers

A passenger bus is descending a long mountain grade with a full load. Which combination best controls speed?

  1. A low gear with light, steady braking and the engine helping to hold speed Correct answer.
  2. Neutral coasting with occasional hard braking
  3. Riding the brake pedal continuously down the entire grade
  4. High gear with the cruise control set to the speed limit

Explanation

On a long downgrade, selecting a lower gear lets engine braking share the work with the brakes. Light, steady brake applications keep the drums and pads from overheating. Coasting in neutral or riding the brakes can lead to brake fade and loss of control.

Question 33Driving Safely with Passengers

What is the correct way to handle a rider who refuses to remain seated while the bus is moving on a busy road?

  1. Continue driving and ignore the behavior until the next terminal
  2. Ask another passenger to physically restrain the rider
  3. Stop the bus in a safe place and address the rider before continuing Correct answer.
  4. Brake hard to show the rider why standing is dangerous

Explanation

When a rider's behavior creates a safety risk, the driver should bring the bus to a safe stop and deal with the situation before moving again. Continuing to drive puts the standing rider and others at risk of injury. Physical force and punitive braking are never appropriate responses.

Question 34Driving Safely with Passengers

A bus driver is about to close the door and depart when a rider in a wheelchair is still positioning near the securement area. What should the driver do?

  1. Ask the rider to hold the handrail instead of using securement
  2. Wait until the wheelchair is secured and the rider is ready before moving Correct answer.
  3. Close the door and let the rider secure the wheelchair without help
  4. Depart slowly so the rider can finish positioning while the bus moves

Explanation

A wheelchair must be secured and its occupant belted before the bus moves. Departing early or letting the rider manage securement alone risks a tip-over or injury during the trip. The driver should confirm the securement and the rider's readiness before releasing the brake.

Question 35Driving Safely with Passengers

What is the primary reason a passenger bus driver should scan well ahead and avoid tailgating large trucks?

  1. To preserve the sight distance and stopping room needed for a heavy vehicle with riders Correct answer.
  2. To keep the bus cool in summer heat
  3. To improve radio reception along the route
  4. To stay within the posted speed limit automatically

Explanation

A loaded bus needs more distance to stop than a passenger car, and following a large truck blocks the view of hazards ahead. A generous following distance restores sight distance and gives the driver room to brake smoothly. This protects standing and seated passengers alike.

Question 36Driving Safely with Passengers

A passenger bus driver sees a pedestrian step into the crosswalk ahead while riders are standing in the aisle. What is the best action?

  1. Sound the horn and maintain speed
  2. Swerve around the pedestrian without slowing
  3. Brake firmly and smoothly while keeping the bus straight Correct answer.
  4. Accelerate to clear the crosswalk before the pedestrian arrives

Explanation

The driver should stop for the pedestrian and brake in a controlled, straight line so standing riders are not thrown off balance. Swerving or accelerating near a crosswalk endangers both the pedestrian and the riders. A smooth, firm stop is the safest response.

Question 37Driving Safely with Passengers

A bus carrying passengers must cross railroad tracks, and the crossing has no gates or flashing lights. What should the driver do?

  1. Stop, look and listen in both directions, and proceed only when clear Correct answer.
  2. Follow the vehicle ahead closely across the tracks
  3. Speed up to cross before any train comes into view
  4. Rely on the bus's size to make trains yield

Explanation

At a passive crossing, the driver must stop and verify that no train is approaching from either direction before proceeding. Trains cannot stop quickly and always have the right of way. Following another vehicle closely can leave the bus stranded on the tracks if traffic stops.

Question 38Driving Safely with Passengers

During a trip, a passenger bus driver notices the low-air-pressure warning buzzer sounds. What should the driver do?

  1. Pump the brake pedal repeatedly to build pressure back up
  2. Continue to the next scheduled stop and report it there
  3. Shift to a higher gear to reduce demand on the brakes
  4. Stop safely as soon as possible and investigate before continuing Correct answer.

Explanation

A low-air warning means the air brake system may not have enough pressure to stop the bus reliably. The driver should pull over safely and investigate or call for help before continuing with passengers aboard. Ignoring the warning risks brake failure.

Question 39Driving Safely with Passengers

What does the posted clearance height on a bridge mean for a passenger bus driver?

  1. The distance the bus must keep from the bridge centerline
  2. The height of the bridge railing above the deck
  3. The maximum vehicle height, including roof equipment, that can pass safely underneath Correct answer.
  4. The minimum height a bus must be to use the bridge

Explanation

A clearance sign shows the maximum height that can pass under the structure. The driver must account for the bus plus any roof-mounted equipment and compare it with the posted figure. A bus taller than the clearance can strike the bridge and injure passengers.

Question 40Driving Safely with Passengers

A passenger bus is being driven in dense fog at night. Which practice best protects the riders?

  1. Reduce speed, use low beams, and increase following distance Correct answer.
  2. Use high beams and maintain the posted speed
  3. Turn on hazard lights and continue at the normal speed
  4. Follow the taillights of the vehicle ahead closely for guidance

Explanation

Fog reduces sight distance, so the driver must slow down and leave a larger following gap to allow for smooth, early braking. Low beams reduce glare reflected back by the fog. Tailgating another vehicle's lights gives a false sense of guidance and removes stopping room.

Question 41Vehicle Inspection

During a pre-trip inspection of a passenger-carrying vehicle, you must check the emergency exits. Which condition makes an emergency exit unacceptable for service?

  1. The exit has a missing or illegible operating instruction label Correct answer.
  2. The exit window glass shows minor water spots
  3. The exit latch shows light surface dust from the road
  4. The exit opens freely from the inside with normal force

Explanation

Emergency exits must have legible operating instructions so passengers can open them under stress, and missing or unreadable labels fail the inspection. Dust or water spots do not affect function, and free operation from inside is the required condition. Any exit that cannot be understood or operated promptly must be corrected before the trip.

Question 42Vehicle Inspection

While inspecting a school bus, you find that the stop arm does not extend when the switch is activated. What is the correct interpretation of this finding?

  1. The arm only needs to work during daylight hours
  2. The stop arm is optional equipment and needs no repair
  3. The driver can manually hold the arm out during stops
  4. The defect must be corrected before the bus is used to load students Correct answer.

Explanation

The stop arm is required safety equipment on a school bus, and a pre-trip inspection that reveals it is inoperative places the vehicle out of service until repaired. It cannot be substituted with manual holding, and it is not optional or limited to daylight. Loading students with a known defect would violate the inspection standard.

Question 43Vehicle Inspection

You are checking the service brakes on an air-brake equipped passenger bus during a pre-trip inspection. Which result indicates the brakes may be out of adjustment?

  1. The parking brake holds the bus on a grade
  2. The air compressor builds pressure while the engine runs
  3. The pushrod stroke exceeds the limit marked on the chamber Correct answer.
  4. The low air pressure warning activates before pressure drops too far

Explanation

Excessive pushrod stroke signals that the slack adjuster is out of adjustment and braking force is reduced. Warning devices, compressor buildup, and parking brake holding are separate checks that do not measure stroke. A bus with overstroke brakes should be placed out of service until adjusted.

Question 44Vehicle Inspection

During the pre-trip inspection, you check the tires on your passenger vehicle. Which finding requires the vehicle to be removed from service?

  1. A small stone lodged in a tread groove
  2. Even wear across the tread face
  3. Tread depth at the wear indicator bars in a groove Correct answer.
  4. Valve stem caps installed on all wheels

Explanation

Tread worn flush with the wear indicator bars means the tire no longer meets minimum tread depth and must be replaced before service. A lodged stone, even wear, and installed valve caps are normal conditions. Continuing to carry passengers on worn tires risks blowouts and loss of traction.

Question 45Vehicle Inspection

You are inspecting the lighting system on a motorcoach before departure. Which condition must be corrected before the trip?

  1. The brake lights illuminate when the pedal is pressed
  2. The headlights are aimed slightly high
  3. The turn signal flashes at a normal rate
  4. A clearance lamp is cracked but still illuminates Correct answer.

Explanation

A cracked lens can allow moisture and debris into the lamp housing and may scatter light, so it must be repaired or replaced before carrying passengers. Proper turn signal flash rate, brake light operation, and headlight aim within tolerance are acceptable. Cracked lighting components are a defect even when the bulb still lights.

Question 46Vehicle Inspection

During your pre-trip inspection of a passenger van, you check the steering system. Which observation indicates a problem that must be repaired?

  1. The steering wheel has slight free play within the manufacturer limit
  2. The steering wheel turns the front wheels smoothly
  3. The steering wheel has excessive free play before the wheels respond Correct answer.
  4. The power steering pump makes a brief sound at startup

Explanation

Excessive free play means the steering linkage or gear is worn, reducing steering control and requiring repair before service. Slight free play within the manufacturer's limit and smooth wheel response are normal. A brief pump sound at startup is not itself a steering defect.

Question 47Vehicle Inspection

You inspect the exhaust system of a passenger bus before a run. Which condition makes the vehicle unsafe to operate?

  1. A heat shield with minor dents
  2. A loose exhaust hanger allowing the pipe to sag Correct answer.
  3. Surface rust on the outside of the muffler
  4. Soot on the tailpipe interior

Explanation

A loose hanger lets the exhaust pipe sag or contact the body, which can leak carbon monoxide into the passenger compartment. Surface rust, minor heat shield dents, and tailpipe soot are common and not out-of-service conditions. Exhaust leaks in a passenger vehicle are especially dangerous because fumes can enter the cabin.

Question 48Vehicle Inspection

During the pre-trip inspection, you check the entry door of a passenger bus. Which result indicates the door system needs attention?

  1. The door closes and latches fully from the driver control
  2. The door warning light stays off when the door is latched
  3. The door opens smoothly with the control switch
  4. The door seal shows a small gap when closed Correct answer.

Explanation

A gap in the door seal when closed allows water, debris, and air into the cabin and suggests the door is not sealing properly. Smooth opening, full latching, and an off warning light when latched are correct functions. The door must close and seal securely before passengers are carried.

Question 49Vehicle Inspection

You are checking the mirrors on a passenger bus before departure. Which condition fails the inspection?

  1. The convex mirror shows a wider view on the right side
  2. The mirror glass is clean and free of cracks
  3. Each mirror is adjusted to show the required viewing area
  4. A mirror bracket is loose and the mirror vibrates Correct answer.

Explanation

A loose bracket lets the mirror vibrate or shift, so the driver cannot rely on the view it provides. Clean, crack-free glass, correct adjustment, and a convex mirror showing a wider view are all acceptable. Mirrors must remain stable so the driver can monitor passengers and traffic.

Question 50Vehicle Inspection

During your pre-trip inspection, you find the horn on your passenger vehicle does not sound. What is the correct action?

  1. Use hand signals in place of the horn
  2. Repair the horn before placing the vehicle in service Correct answer.
  3. Note the defect and report it after the trip
  4. Proceed if the vehicle has working turn signals

Explanation

The horn is required safety equipment used to warn others, so an inoperative horn must be repaired before the vehicle is used. Turn signals and hand signals serve different purposes and do not replace the horn. Defects affecting required equipment are corrected before service, not deferred to after the trip.