Engine Repair Final Exam Questions
and Answers Latest Version Already
Passed
What is the most likely cause of a knocking sound from an engine during acceleration?
A. Loose fan belt
B. Rich fuel mixture
✔✔C. Worn connecting rod bearings
D. Clogged air filter
Which tool is most appropriate for checking cylinder compression?
A. Torque wrench
✔✔B. Compression tester
C. Vacuum gauge
D. Dial indicator
A cylinder has low compression. What could be a possible cause?
A. Excessive oil
✔✔B. Burned exhaust valve
1
,C. Slipping clutch
D. Loose timing chain cover
What component opens and closes the engine's valves?
A. Crankshaft
B. Flywheel
✔✔C. Camshaft
D. Timing belt tensioner
White smoke from the exhaust on startup likely indicates:
A. A clogged air filter
✔✔B. Coolant entering the combustion chamber
C. Excessive fuel pressure
D. Poor ignition timing
What is the purpose of piston rings?
A. To keep oil from freezing
✔✔B. To seal combustion gases and control oil consumption
2
,C. To clean spark plugs
D. To increase fuel efficiency
Which engine component converts linear motion into rotary motion?
✔✔A. Crankshaft
B. Camshaft
C. Timing gear
D. Intake valve
What can result from a broken timing belt?
A. Poor oil pressure
B. High fuel economy
✔✔C. Engine misfire or valve damage
D. Faulty spark plug readings
Why is engine oil pressure important?
A. It helps maintain battery voltage
B. It increases coolant circulation
3
, ✔✔C. It lubricates moving parts to prevent wear
D. It powers the starter motor
Which tool is used to measure valve clearance?
A. Caliper
✔✔B. Feeler gauge
C. Torque wrench
D. Compression gauge
A rough idle and misfire could be caused by:
A. Clean air filter
✔✔B. Vacuum leak
C. High tire pressure
D. Tight steering belt
If the engine overheats quickly after startup, a likely cause is:
A. Faulty fuel injector
B. Weak battery
4
and Answers Latest Version Already
Passed
What is the most likely cause of a knocking sound from an engine during acceleration?
A. Loose fan belt
B. Rich fuel mixture
✔✔C. Worn connecting rod bearings
D. Clogged air filter
Which tool is most appropriate for checking cylinder compression?
A. Torque wrench
✔✔B. Compression tester
C. Vacuum gauge
D. Dial indicator
A cylinder has low compression. What could be a possible cause?
A. Excessive oil
✔✔B. Burned exhaust valve
1
,C. Slipping clutch
D. Loose timing chain cover
What component opens and closes the engine's valves?
A. Crankshaft
B. Flywheel
✔✔C. Camshaft
D. Timing belt tensioner
White smoke from the exhaust on startup likely indicates:
A. A clogged air filter
✔✔B. Coolant entering the combustion chamber
C. Excessive fuel pressure
D. Poor ignition timing
What is the purpose of piston rings?
A. To keep oil from freezing
✔✔B. To seal combustion gases and control oil consumption
2
,C. To clean spark plugs
D. To increase fuel efficiency
Which engine component converts linear motion into rotary motion?
✔✔A. Crankshaft
B. Camshaft
C. Timing gear
D. Intake valve
What can result from a broken timing belt?
A. Poor oil pressure
B. High fuel economy
✔✔C. Engine misfire or valve damage
D. Faulty spark plug readings
Why is engine oil pressure important?
A. It helps maintain battery voltage
B. It increases coolant circulation
3
, ✔✔C. It lubricates moving parts to prevent wear
D. It powers the starter motor
Which tool is used to measure valve clearance?
A. Caliper
✔✔B. Feeler gauge
C. Torque wrench
D. Compression gauge
A rough idle and misfire could be caused by:
A. Clean air filter
✔✔B. Vacuum leak
C. High tire pressure
D. Tight steering belt
If the engine overheats quickly after startup, a likely cause is:
A. Faulty fuel injector
B. Weak battery
4
