DIY Auto Repair IQ: Test Your Mechanic Smarts

DIY Auto Repair Quiz

1. True or False: You can tell if a tire needs air just by looking at it.
   True
   False
2. True or False: Changing the oil and filter regularly helps an engine last longer.
   True
   False
3. Which should you use to support your car while working underneath?
   The jack alone
   A spare tire
   Jack stands
   A Hi‑Lift Jack
4. You notice a bright green puddle under the vehicle. It's most likely:
   Condensation from A/C
   Engine oil leak
   Coolant leak
5. What do the four strokes of a 4‑stroke engine cycle in order?
   Intake, compression, power, exhaust
   Intake, exhaust, power, compression
   Exhaust, intake, power, compression
   None of the above
6. When tightening lug nuts, what pattern should be used?
   Clockwise circle
   Counterclockwise circle
   Random
   Criss‑cross pattern
7. ABS stands for:
   Anti‑skid Brake Safety
   Anti‑lock Braking System
   Advanced Braking Sensor
   Automatic Braking Sensor

Answer Key

• 1: False — You cannot reliably judge tire pressure by eye; correct pressure is crucial for safety and efficiency.
• 2: True — Following recommended oil and filter change intervals can significantly extend engine life.
• 3: Jack stands — Never support yourself solely by a jack; use jack stands or ramps.
• 4: Coolant leak — Bright green usually indicates coolant; common in NAPA-style quizzes.
• 5: Intake, compression, power, exhaust — The correct four-stroke cycle order.
• 6: Criss‑cross pattern — Ensures even pressure and avoids warping the wheel or studs.
• 7: Anti‑lock Braking System — Prevents wheels from locking under hard braking.