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What is the main function of a fuel injection system?

• To cool the engine

• To reduce tire pressure

• To increase engine noise

• To mix air and fuel precisely

The main purpose of the Multi-Point Fuel Injection system is to supply a proper ratio of gasoline and air to the cylinders.

• Yes

• No

“What’s the most interesting thing you’ve learned in this course that you’d proudly explain to your non-engineering friends?”

If your understanding of basics mechanical concepts were a machine, it would be…

• • 🏎️ A race car — super fast and efficient

• • 🚲 A bicycle — balanced but needs some pedaling

• • 🚂 A steam engine — takes time but gets there

• • 🧰 Under repair — needs a few spare parts (more study!

Which component controls when and how much fuel is injected?

• Fuel pump

• Engine control unit (ECU)

• Air filter

• Throttle body

What type of fuel injection sprays fuel directly into the combustion chamber?

• Carburetor injection

• Multi-point injection

• Direct injection

• Single-point injection

How do fuel injection systems help with emissions control?

• By using more fuel

• By reducing air intake

• By adjusting the fuel mixture based on oxygen levels

• By increasing engine size

What is a common issue with fuel injection systems?

• They are too simple

• They require no maintenance

• They can have clogged injectors

• They are always too efficient