Automotive Knowledge Quiz

What is the primary function of a car's air filter?

• To improve fuel efficiency

• To increase horsepower

• To clean the air entering the engine

• To reduce noise pollution

Which of the following is a common symptom of a faulty oxygen sensor?

• Decreased fuel efficiency

• Increased engine performance

• Reduced emissions

• Improved engine sound

What is the purpose of a car's timing belt?

• To drive the water pump

• To drive the alternator

• To synchronize the rotation of the crankshaft and camshaft

• To power the air conditioning system

Which type of brake fluid is commonly used in most vehicles?

• DOT 3

• DOT 4

• DOT 5

• Synthetic brake fluid

What is the function of a car's exhaust system?

• To reduce engine noise

• To improve fuel efficiency

• To direct exhaust gases away from the vehicle

• To increase horsepower

Which of the following is a common cause of premature tire wear?

• Improper tire inflation

• Misaligned wheels

• Worn-out brake pads

• Low engine oil level

What is the purpose of a car's coolant system?

• To cool the engine

• To heat the engine

• To lubricate the engine

• To power the air conditioning system

Which type of transmission is commonly used in most vehicles?

• Manual transmission

• Automatic transmission

• Continuously variable transmission (CVT)

• Semi-automatic transmission

What is the function of a car's battery?

• To start the engine

• To power the accessories

• To charge the electrical system

• All of the above

Which of the following is a common symptom of a faulty alternator?

• Dim or flickering headlights

• Dead battery

• Overheating engine

• Reduced fuel efficiency