Driver Licensing Vehicle Safety and Maintenance 2 — Questions and Answers
Question 1: What is the purpose of the vehicle's antilock braking system (ABS)?
- To stop the car faster than conventional brakes on dry pavement
- To prevent the wheels from locking up so steering control is maintained during hard braking (Correct answer)
- To automatically apply the brakes when the car senses an obstacle
- To reduce brake pad wear during normal driving
Correct answer: To prevent the wheels from locking up so steering control is maintained during hard braking
ABS pulses the brakes automatically to prevent wheel lock-up, allowing the driver to steer while braking hard.
Question 2: What does a spongy or soft brake pedal most likely indicate?
- The brake pads are brand new and still breaking in
- Air in the brake lines or low brake fluid (Correct answer)
- Normal wear that occurs after 50,000 miles
- The parking brake cable is too tight
Correct answer: Air in the brake lines or low brake fluid
Air in hydraulic brake lines compresses instead of transmitting pressure, causing a spongy pedal that reduces braking effectiveness.
Question 3: What should you do before driving if you notice your vehicle is pulling to one side when you brake?
- Compensate by steering slightly in the opposite direction
- Have your brakes inspected — uneven braking can cause loss of control (Correct answer)
- Inflate the tire on the opposite side to balance the pull
- Drive at slower speeds until the next scheduled maintenance
Correct answer: Have your brakes inspected — uneven braking can cause loss of control
Brake pull often indicates a stuck caliper, uneven pad wear, or brake fluid leak — all serious safety hazards requiring immediate inspection.
Question 4: Why is it important to keep your gas tank at least one-quarter full in cold weather?
- A full tank improves engine compression in cold temperatures
- It prevents fuel line freeze and ensures the fuel pump stays cool and lubricated (Correct answer)
- Cold gasoline expands and needs extra tank space
- A heavier vehicle handles better on icy roads
Correct answer: It prevents fuel line freeze and ensures the fuel pump stays cool and lubricated
Moisture can accumulate in a nearly empty tank and freeze in fuel lines; the fuel also lubricates and cools the electric fuel pump.
Question 5: What is the correct way to check engine oil level?
- Check it immediately after turning off a hot engine for the most accurate reading
- Wait a few minutes after turning off the engine, then pull and wipe the dipstick, reinsert, and read (Correct answer)
- Check it only when the oil pressure warning light illuminates
- Pour oil in until it overflows the dipstick tube
Correct answer: Wait a few minutes after turning off the engine, then pull and wipe the dipstick, reinsert, and read
Letting the oil drain back into the pan for a few minutes ensures an accurate dipstick reading; checking it immediately gives a false low reading.
Question 6: At what tread depth should you begin planning to replace your tires, even though they are still technically legal?
- 6/32 of an inch
- 4/32 of an inch (Correct answer)
- 3/32 of an inch
- 2/32 of an inch
Correct answer: 4/32 of an inch
Safety experts recommend replacing tires at 4/32 inch because wet-weather performance degrades significantly below this point before reaching the legal minimum.
Question 7: What does an illuminated battery warning light typically indicate?
- The battery is fully charged and ready for cold weather
- The charging system is not properly charging the battery (Correct answer)
- You need to add distilled water to the battery cells
- The battery has reached its maximum charge capacity
Correct answer: The charging system is not properly charging the battery
The battery light signals a problem with the charging system — usually the alternator — meaning the battery is draining and the car may soon stall.
Driver Licensing Vehicle Safety and Maintenance 2
What is the purpose of the vehicle's antilock braking system (ABS)?