1|Page
Auto 125 Final Exam ALL QUESTIONS AND 100% CORRECT
ANSWERS ALREADY GRADED A+ - LATEST UPDATE 2026
AutoZone Parts Exam Practice Questions —Qs + Answers
Brakes & Suspension (Q1–Q10)
Q1: Tech A says a caliper not functioning properly can cause uneven or tapered wear in brake pads.
Tech B says faulty brake hardware can cause uneven pad wear.
A. Tech A only
B. Tech B only
C. Both Techs
D. Neither
Answer: C
Rationale: Both caliper issues and hardware problems lead to uneven brake pad wear.
Q2: What clamps brake pads against the rotor to stop a vehicle?
A. Drum
B. Caliper
C. Transmission
D. Axle
Answer: B
Rationale: Calipers apply pressure to pads against the rotor.
Q3: A customer wants the quietest brake pads with the lowest dust. What should you recommend?
A. Semi-metallic
B. Ceramic
C. Organic
D. Metallic
Answer: B
Rationale: Ceramic pads are known for quiet operation and low dust.
Q4: True or False: Brake fluid has an unlimited shelf life after opening.
A. True
B. False
Answer: B
Rationale: Brake fluid absorbs moisture over time, so shelf life is limited.
Q5: Shocks and struts primarily affect:
A. Battery performance
B. Vehicle stability and handling
C. Fuel injection
D. Engine timing
Answer: B
Rationale: Suspension components control vehicle ride and handling.
UPDATED exam 2026
,2|Page
Q6: Tapered brake pad wear can be caused by:
A. Sticky caliper slides
B. Turf tires
C. Low tire pressure
D. Dirty headlights
Answer: A
Rationale: Sticky components cause uneven pressure distribution.
Q7: Brake wear pattern diagnosis helps:
A. Oil change frequency
B. Identify mechanical problems
C. Window tint quality
D. Tire rotation frequency
Answer: B
Rationale: Patterns offer clues to specific brake issues.
Q8: Which hardware supports brake pad fitment and noise control?
A. Brake hose
B. Brake hardware kit
C. Spark plug
D. Fuel injector
Answer: B
Rationale: Hardware kits include shims and springs that reduce noise and vibration.
Q9: A suspension strut differs from a shock absorber by:
A. Being lighter
B. Providing structural support and housing the coil spring
C. Operating the brakes
D. Cooling the engine
Answer: B
Rationale: Struts integrate damping and structural functions.
Q10: High-dust brake pads should be avoided if the customer wants:
A. Maximum stopping power
B. Low dust and a clean wheel finish
C. Premium sound
D. Race performance only
Answer: B
Rationale: Low-dust pads help keep wheels cleaner.
🔋 Batteries & Electrical (Q11–Q20)
Q11: AGM and gel batteries compared to traditional lead-acid batteries:
A. Corrode faster
B. Often hold charge longer on the shelf
C. Are never used in cars
D. Always leak
UPDATED exam 2026
, 3|Page
Answer: B
Rationale: AGM/gel have lower self-discharge characteristics.
Q12: Tech A says identifying battery terminals by cable color is always reliable. Tech B says polarity
symbols stamped on the battery are a reliable way to identify terminals.
A. Tech A
B. Tech B
C. Both
D. Neither
Answer: B
Rationale: Polarity symbols are more accurate than cable color alone.
Q13: When jump-starting a car, where should the last jumper cable connection be made?
A. On the battery negative terminal
B. On metal of the engine block
C. On the tire rim
D. On the battery positive terminal
Answer: B
Rationale: Reduces spark near battery and increases safety.
Q14: It is safe to run a car inside a closed garage if a door is open.
A. True
B. False
Answer: B
Rationale: Exhaust can accumulate even with a door open.
Q15: Many battery returns under warranty are simply:
A. Defective cores
B. Discharged, not faulty
C. Overcharged
D. Too light
Answer: B
Rationale: A high percentage of returned batteries are only discharged.
Q16: Cold-cranking amps (CCA) indicate:
A. How loud a battery is
B. Battery’s ability to start an engine in cold temperatures
C. Tire traction
D. Headlight brightness
Answer: B
Rationale: CCA measures starting power in cold conditions.
Q17: A loose alternator connection can cause:
A. Increased engine power
B. Electrical arcing and heat
C. Better fuel economy
D. Longer brake life
Answer: B
Rationale: Loose connections often lead to arcing.
UPDATED exam 2026
Auto 125 Final Exam ALL QUESTIONS AND 100% CORRECT
ANSWERS ALREADY GRADED A+ - LATEST UPDATE 2026
AutoZone Parts Exam Practice Questions —Qs + Answers
Brakes & Suspension (Q1–Q10)
Q1: Tech A says a caliper not functioning properly can cause uneven or tapered wear in brake pads.
Tech B says faulty brake hardware can cause uneven pad wear.
A. Tech A only
B. Tech B only
C. Both Techs
D. Neither
Answer: C
Rationale: Both caliper issues and hardware problems lead to uneven brake pad wear.
Q2: What clamps brake pads against the rotor to stop a vehicle?
A. Drum
B. Caliper
C. Transmission
D. Axle
Answer: B
Rationale: Calipers apply pressure to pads against the rotor.
Q3: A customer wants the quietest brake pads with the lowest dust. What should you recommend?
A. Semi-metallic
B. Ceramic
C. Organic
D. Metallic
Answer: B
Rationale: Ceramic pads are known for quiet operation and low dust.
Q4: True or False: Brake fluid has an unlimited shelf life after opening.
A. True
B. False
Answer: B
Rationale: Brake fluid absorbs moisture over time, so shelf life is limited.
Q5: Shocks and struts primarily affect:
A. Battery performance
B. Vehicle stability and handling
C. Fuel injection
D. Engine timing
Answer: B
Rationale: Suspension components control vehicle ride and handling.
UPDATED exam 2026
,2|Page
Q6: Tapered brake pad wear can be caused by:
A. Sticky caliper slides
B. Turf tires
C. Low tire pressure
D. Dirty headlights
Answer: A
Rationale: Sticky components cause uneven pressure distribution.
Q7: Brake wear pattern diagnosis helps:
A. Oil change frequency
B. Identify mechanical problems
C. Window tint quality
D. Tire rotation frequency
Answer: B
Rationale: Patterns offer clues to specific brake issues.
Q8: Which hardware supports brake pad fitment and noise control?
A. Brake hose
B. Brake hardware kit
C. Spark plug
D. Fuel injector
Answer: B
Rationale: Hardware kits include shims and springs that reduce noise and vibration.
Q9: A suspension strut differs from a shock absorber by:
A. Being lighter
B. Providing structural support and housing the coil spring
C. Operating the brakes
D. Cooling the engine
Answer: B
Rationale: Struts integrate damping and structural functions.
Q10: High-dust brake pads should be avoided if the customer wants:
A. Maximum stopping power
B. Low dust and a clean wheel finish
C. Premium sound
D. Race performance only
Answer: B
Rationale: Low-dust pads help keep wheels cleaner.
🔋 Batteries & Electrical (Q11–Q20)
Q11: AGM and gel batteries compared to traditional lead-acid batteries:
A. Corrode faster
B. Often hold charge longer on the shelf
C. Are never used in cars
D. Always leak
UPDATED exam 2026
, 3|Page
Answer: B
Rationale: AGM/gel have lower self-discharge characteristics.
Q12: Tech A says identifying battery terminals by cable color is always reliable. Tech B says polarity
symbols stamped on the battery are a reliable way to identify terminals.
A. Tech A
B. Tech B
C. Both
D. Neither
Answer: B
Rationale: Polarity symbols are more accurate than cable color alone.
Q13: When jump-starting a car, where should the last jumper cable connection be made?
A. On the battery negative terminal
B. On metal of the engine block
C. On the tire rim
D. On the battery positive terminal
Answer: B
Rationale: Reduces spark near battery and increases safety.
Q14: It is safe to run a car inside a closed garage if a door is open.
A. True
B. False
Answer: B
Rationale: Exhaust can accumulate even with a door open.
Q15: Many battery returns under warranty are simply:
A. Defective cores
B. Discharged, not faulty
C. Overcharged
D. Too light
Answer: B
Rationale: A high percentage of returned batteries are only discharged.
Q16: Cold-cranking amps (CCA) indicate:
A. How loud a battery is
B. Battery’s ability to start an engine in cold temperatures
C. Tire traction
D. Headlight brightness
Answer: B
Rationale: CCA measures starting power in cold conditions.
Q17: A loose alternator connection can cause:
A. Increased engine power
B. Electrical arcing and heat
C. Better fuel economy
D. Longer brake life
Answer: B
Rationale: Loose connections often lead to arcing.
UPDATED exam 2026
