FREE DFFT Engines Questions and Answers

Question 1

If your car engine is overheating, what is the most likely cause?

Accepted Answer

Low coolant levels

Answer

Dirty air filter

Answer

Low oil levels

Answer

Faulty alternator

Question 2

Which symptom indicates a possible problem with the car's ignition system?

Accepted Answer

Engine cranks but does not start

Answer

Engine knocks or pings

Answer

Excessive exhaust smoke

Answer

Decreased fuel efficiency

Question 3

What could be the cause if the engine is misfiring?

Accepted Answer

Worn spark plugs

Answer

Faulty fuel pump

Answer

Blocked radiator

Answer

Low transmission fluid

Question 4

What might cause a car engine to stall while idling?

Accepted Answer

Clogged fuel injector

Answer

Low brake fluid

Answer

Dirty air filter

Answer

Faulty oxygen sensor

Question 5

Which issue might cause a rough idle in an engine?

Accepted Answer

Faulty mass airflow sensor

Answer

Overfilled oil

Answer

Low power steering fluid

Answer

Worn brake pads

Question 6

If the engine's oil pressure warning light comes on, what should you check first?

Accepted Answer

Oil level

Answer

Coolant level

Answer

Battery voltage

Answer

Tire pressure

Question 7

What could cause an engine to produce a knocking noise?

Accepted Answer

Incorrect fuel octane

Answer

Low windshield washer fluid

Answer

Faulty alternator

Answer

Worn spark plugs

Question 8

What might be the issue if there is excessive white smoke from the exhaust?

Accepted Answer

Burning coolant

Answer

Worn brake pads

Answer

Faulty alternator

Answer

Low transmission fluid

Question 9

What could be the cause of a fuel smell inside the car?

Accepted Answer

Leaking fuel injector

Answer

Worn timing belt

Answer

Low brake fluid

Answer

Dirty air filter

Question 10

If the car's engine has a lack of power, what might be the cause?

Accepted Answer

Blocked air filter

Answer

Faulty windshield wipers

Answer

Low coolant level

Answer

Overinflated tires