Question 1: Motorcycle Engine Fundamentals Quiz

Question 1 of 20

0% Correct

What is the primary function of spark plugs in a gasoline internal combustion engine?

Answer Explanation

Spark plugs are crucial for initiating combustion. They generate an electrical spark that ignites the highly compressed fuel-air mixture, driving the piston down during the power stroke.

A. To control the flow of fuel into the cylinder.

22%

B. To cool the engine's combustion chamber.

21%

C. To regulate the engine's idle speed.

19%

D. To ignite the compressed air-fuel mixture within the combustion chamber.

38%

What is the primary function of spark plugs in a gasoline internal combustion engine?

Answer Explanation

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