Which component's function is to provide the engine with air?

Which component's function is to provide the engine with air?

• A. Main compressor
• B. Fuel pump
• C. Spark plug
• D. Exhaust

Answer: (A)

Air must be taken in and pressurized before it can be burned with fuel. The main compressor does exactly that: it draws in ambient air and increases its pressure, sending a steady, high-pressure flow to the combustion chamber where fuel can mix and burn efficiently. This is why it’s the component that provides air to the engine. The other parts have different roles—fuel pump delivers fuel, spark plug ignites the air–fuel mixture, and the exhaust removes burnt gases.

Air must be taken in and pressurized before it can be burned with fuel. The main compressor does exactly that: it draws in ambient air and increases its pressure, sending a steady, high-pressure flow to the combustion chamber where fuel can mix and burn efficiently. This is why it’s the component that provides air to the engine. The other parts have different roles—fuel pump delivers fuel, spark plug ignites the air–fuel mixture, and the exhaust removes burnt gases.