Four-Stroke Cycle Quiz

What are the four strokes in the four-stroke cycle of an internal combustion engine?

• Intake, Compression, Power, Exhaust

• Suction, Expansion, Ignition, Emission

• Inlet, Squeeze, Combustion, Outflow

• Draw, Compress, Ignite, Expel

During which stroke does the piston move upward, squeezing the air-fuel mixture?

• • a) Intake

• • b) Compression

• • c) Power

• • d) Exhaust

What is the purpose of the exhaust stroke in the four-stroke cycle?

• • a) To expel burned gases

• • b) To draw in air-fuel mixture

• • c) To compress the air-fuel mixture

• • d) To generate power

Which stroke is responsible for producing performance in the internal combustion engine?

• • a) Intake

• • b) Compression

• • c) Power

• • d) Exhaust

What initiates the combustion process in the internal combustion engine?

• • a) Glow plug

• • b) Piston

• • c) Spark plug

• • d) Crankshaft

During which stroke does the exhaust valve open, allowing the burned gases to exit the combustion chamber?

• • a) Intake

• • b) Compression

• • c) Power

• • d) Exhaust

What type of combustion occurs during the power stroke?

• Premature combustion

• Controlled combustion

• Post-ignition

• Detonation

What is the function of the crankshaft in the four-stroke cycle?

• Igniting the fuel

• Converting reciprocating motion to rotational motion

• Controlling valve timing

• Regulating fuel injection

What component regulates the flow of air and fuel into the combustion chamber during the intake stroke?

• Piston

• Spark plug

• Carburettor or fuel injector

• Camshaft

What is the typical firing order for a four-cylinder engine in the power stroke?

• 1-2-3-4

• 1-3-4-2

• 1-4-2-3

• 1-2-4-3