REVISED ACTUAL QUESTIONS AND CERTIFIED ANSWERS 2026
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1. Tech A says a caliper that is not functioning properly can cause uneven or tapered
wear in the brake pads. Tech B says brake hardware that is not functioning properly
can cause uneven wear in the brake pads. Who is correct?
A. Tech A only
B. Tech B only
C. Both Techs
D. Neither
Correct Answer: C
Rationale: Both statements are correct because brake pad wear depends on proper operation of both
the caliper and brake hardware. A malfunctioning caliper may apply uneven pressure, while faulty
hardware such as clips or pins can restrict movement, leading to irregular wear patterns and reduced
braking efficiency.
2. Tech A says starting batteries are designed for starting purposes only. Tech B says
they are also for running accessories. Who is correct?
A. Tech A only
B. Tech B only
C. Both Techs
D. Neither
Correct Answer: A
Rationale: Starting batteries are specifically designed to deliver short bursts of high current to start the
engine. While they may temporarily power accessories, they are not designed for continuous discharge
like deep-cycle batteries, making Tech A correct.
3. Tech A says starting batteries are designed to have their voltage maintained by an
onboard charging system. Tech B says deep-cycle batteries are designed to be used
without onboard charging and then recharged later. Who is correct?
A. Tech A only
B. Tech B only
C. Both Techs
D. Neither
Correct Answer: C
Rationale: Starting batteries rely on the vehicle’s charging system to maintain voltage, while deep-cycle
batteries are designed to discharge deeply and then be recharged, making both statements accurate.
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,4. When the electrical connection to the alternator from the battery is not tight, what
can occur?
A. Increased fuel efficiency
B. Arcing and burning
C. Lower engine temperature
D. Improved charging
Correct Answer: B
Rationale: Loose electrical connections increase resistance, which can lead to heat buildup, arcing, and
burning. This can damage components and reduce system efficiency.
5. Items that may affect fuel injection system performance include:
A. Engine control sensors only
B. Clogged injectors only
C. Both engine control sensors and clogged injectors
D. Tire pressure
Correct Answer: C
Rationale: Fuel injection systems rely on accurate sensor data and proper fuel flow. Faulty sensors or
clogged injectors can disrupt performance, leading to poor combustion and reduced efficiency.
6. A customer wants to know how long an original fuel pump typically lasts. What is
the best answer?
A. 1–2 years
B. 3–4 years
C. 5–7 years
D. 10–15 years
Correct Answer: C
Rationale: Fuel pumps generally last between 5–7 years depending on driving conditions, fuel quality,
and maintenance practices.
7. Which fuel delivery system injects fuel directly into the combustion chamber?
A. Port injection
B. Throttle body injection
C. Direct injection
D. Carburetor
Correct Answer: C
Rationale: Direct injection systems deliver fuel directly into the combustion chamber, improving
efficiency and performance compared to other systems.
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, 8. Tech A says when replacing a water pump, the clutch fan should also be replaced.
Tech B says grinding or growling noises indicate a failed water pump. Who is correct?
A. Tech A only
B. Tech B only
C. Both Techs
D. Neither
Correct Answer: C
Rationale: Replacing related components like the clutch fan can prevent future failures, and unusual
noises often indicate bearing failure in the water pump, making both statements correct.
9. Tech A says cleaning the fuel tank is often overlooked when replacing the fuel pump.
Tech B says contaminated fuel does not impact fuel pump performance. Who is
correct?
A. Tech A only
B. Tech B only
C. Both Techs
D. Neither
Correct Answer: A
Rationale: Cleaning the fuel tank is essential because contaminants can damage a new fuel pump.
Tech B is incorrect because contaminated fuel significantly affects pump performance.
10. A customer suspects a faulty fuel pump. What is the first solution you should
offer?
A. Replace injectors
B. Clean the fuel tank
C. Replace battery
D. Check tires
Correct Answer: B
Rationale: Cleaning the fuel tank removes contaminants that may cause pump failure and is a critical
first step before replacing components.
11. Tech A says brake fluid lasts about six months once opened. Tech B says the brake
system should be flushed to avoid contamination. Who is correct?
A. Tech A only
B. Tech B only
C. Both Techs
D. Neither
Correct Answer: C
Rationale: Brake fluid absorbs moisture over time, reducing effectiveness. Flushing ensures optimal
performance and prevents contamination.
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