What is the purpose of the spark plug in Otto's engine?
Ignite fuel-air mixture
Inject fuel
Compress air
Cool engine
Answer
Igniting the fuel-air mixture is the primary function of the spark plug in Otto's engine. It generates a high-voltage spark across a gap, creating an ignition source that initiates the combustion process. This spark ignites the compressed fuel-air mixture, causing it to burn rapidly and expand, driving the piston downward and generating power.
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