Four-Stroke Cycle Quiz

What is the first stroke in the four-stroke cycle?

• Compression

• Power

• Intake

• Exhaust

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

• Intake

• Power

• Compression

• Exhaust

In which stroke does the ignited air-fuel mixture produce power and force the piston downward?

• Compression

• Intake

• Power

• Exhaust

When does the exhaust valve open in the four-stroke cycle?

• Intake

• Power

• Compression

• Exhaust

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

• Generate power

• Expel exhaust gases

• Compress air-fuel mixture

• Draw in air-fuel mixture

Which stroke is responsible for expelling exhaust gases from the combustion chamber?

• Intake

• Power

• Compression

• Exhaust

During which stroke does the piston move downward to create mechanical work?

• Intake

• Power

• Compression

• Exhaust

What is the primary function of the compression stroke?

• Generate power

• Expel exhaust gases

• Compress air-fuel mixture

• Draw in air-fuel mixture

When does the spark plug ignite the air-fuel mixture in the combustion chamber?

• Intake

• Power

• Compression

• Exhaust

Which stroke prepares the engine for the next cycle by clearing the combustion chamber?

• Intake

• Power

• Compression

• Exhaust