Understanding Car Engines

Jake O'Neill explains how a car engine works, starting with the piston and the four-stroke cycle: intake, compression, power stroke, and exhaust. He describes engine components like the crankshaft, camshaft, and cylinder configurations. The video covers supporting systems such as air intake, fuel, cooling, electrical, oil, and exhaust systems, detailing their functions and components. The engine's operation is supported by systems that manage air, fuel, temperature, electricity, lubrication, and exhaust.

What is the primary function of the intake stroke in a four-stroke engine?

• To compress the air-fuel mixture

• To ignite the air-fuel mixture

• To draw in the air-fuel mixture

• To expel exhaust gases

During which stroke is the air-fuel mixture compressed in a four-stroke engine?

• Power stroke

• Compression stroke

• Exhaust stroke

• Intake stroke

What component transfers the piston's power to the crankshaft?

• Camshaft

• Connecting rod

• Flywheel

• Timing belt

What is the role of the camshaft in an engine?

• To balance the crankshaft

• To open and close the valves

• To cool the engine

• To ignite the fuel-air mixture

How does air enter the engine in the air intake system?

• Through the oil pan

• Through the air filter

• Through the fuel injectors

• Through the exhaust manifold

What is the purpose of the fuel injectors in an engine?

• To cool the engine

• To lubricate the pistons

• To filter the fuel

• To spray fuel into the intake port

What is the function of the radiator in the cooling system?

• To heat the engine

• To generate electricity

• To circulate oil

• To cool the coolant

Which component delivers the electrical spark for combustion?

• Spark plug

• Battery

• Alternator

• Oil pump

What is the main purpose of motor oil in an engine?

• To filter the air

• To lubricate and cool the engine

• To generate electricity

• To ignite the fuel

What does the catalytic converter do in the exhaust system?

• Filters the air intake

• Increases engine power

• Captures toxic chemicals

• Reduces exhaust noise