MTO Vehicle Maintenance & Inspection 4 — Questions and Answers
Question 1: Which of the following is NOT typically checked during a standard vehicle safety inspection?
- Horn function
- Seat upholstery condition (Correct answer)
- Windshield wiper operation
- Headlight alignment
Correct answer: Seat upholstery condition
Safety inspections focus on safety-critical systems; cosmetic items like seat upholstery are not required checks.
Question 2: What does the 'Check Engine' light most accurately indicate?
- The engine needs an immediate oil change
- The OBD system has detected a fault code (Correct answer)
- The engine is about to overheat
- Scheduled maintenance is due
Correct answer: The OBD system has detected a fault code
The check engine light activates when the On-Board Diagnostics system logs a fault in any monitored system.
Question 3: How can you test if a car battery is weak without specialized tools?
- Listen for a ticking noise from the engine
- Notice slow engine cranking or dim lights when starting (Correct answer)
- Check if the radiator fan runs constantly
- Monitor exhaust color
Correct answer: Notice slow engine cranking or dim lights when starting
A weak battery struggles to deliver sufficient current, resulting in slow engine cranking or noticeably dim electrical components.
Question 4: What is the function of a vehicle's shock absorbers?
- Reduce engine vibration
- Dampen suspension movement to keep tires in contact with the road (Correct answer)
- Absorb heat from the braking system
- Filter impurities from the fuel
Correct answer: Dampen suspension movement to keep tires in contact with the road
Shock absorbers control the speed and force of suspension compression and rebound to maintain vehicle stability.
Question 5: How should you dispose of used motor oil after an oil change?
- Pour it down a storm drain
- Take it to a recycling center or auto parts store (Correct answer)
- Mix it with gasoline for disposal
- Bury it in the ground
Correct answer: Take it to a recycling center or auto parts store
Used motor oil is a hazardous waste and must be recycled at designated facilities; improper disposal is illegal and harmful.
Question 6: What is indicated by a battery warning light illuminating while driving?
- Battery needs replacement immediately
- The charging system is not supplying adequate voltage (Correct answer)
- Battery terminals are corroded
- Battery is fully charged
Correct answer: The charging system is not supplying adequate voltage
The battery light means the alternator is failing to charge the battery, and the vehicle is running on battery power alone.
Question 7: What is the recommended action when your temperature gauge enters the red zone while driving?
- Turn on the air conditioning to cool the engine
- Pull over safely, turn off the engine, and let it cool before inspecting (Correct answer)
- Add coolant immediately with the engine running
- Drive faster to increase airflow to the radiator
Correct answer: Pull over safely, turn off the engine, and let it cool before inspecting
Continuing to drive an overheating engine can cause severe damage; stopping and cooling down is the safest response.
MTO Vehicle Maintenance & Inspection 4
Which of the following is NOT typically checked during a standard vehicle safety inspection?