QUIZ 2

Avery was driving her diesel truck when she noticed a strange issue. What symptom is commonly associated with a faulty diesel fuel injector?

• a. White smoke

• b. Loss of power

• c. High fuel pressure

• d. No oil consumption

David is trying to diagnose a fuel injector issue in his car. Which diagnostic tool should he use to perform an injector balance test?

• a. Compression tester

• b. Fuel gauge

• c. Diagnostic scanner

• d. Smoke tester

While inspecting his vehicle, Mark hears a hissing sound from the engine bay. This could indicate:

• d. Worn brake pads

• a. Vacuum leak

• b. Low oil level

• c. Faulty spark plugs

Mark is troubleshooting a misfire in his engine. Which component is most likely to cause this issue?

• d. Battery

• b. Ignition coil

• c. Air filter

• a. Fuel pump

During a routine check, Sarah notices her car is emitting black smoke from the exhaust. What could be a potential cause?

• a. Rich fuel mixture

• d. Worn tires

• b. Low coolant level

• c. Clogged catalytic converter

Excessive black smoke and loss of power may be caused by:

• a. Clogged oil filter

• b. Worn-out fan belt

• c. Clogged air filter

• d. Overfilled coolant reservoir

What is the first step in addressing water contamination in diesel fuel?

• a. Replace fuel pump

• b. Bleed the system

• c. Drain fuel separator

• d. Change injectors

Emma is experiencing a rough idle in her vehicle. Which component is most likely to be the culprit?

• a. Throttle body

• c. Mass air flow sensor

• b. Fuel filter

• d. Exhaust manifold

While performing maintenance, John notices a strong fuel smell near the engine. What could be a likely cause?

• d. Worn spark plugs

• c. Clogged fuel filter

• b. Faulty fuel gauge

• a. Leaking fuel line

What is a common symptom of a failing fuel pump in a vehicle?

• d. Low battery voltage

• b. Excessive oil consumption

• a. Engine stalling

• c. Overheating engine