How many spark plugs are used in each cylinder for a typical engine with dual ignition?

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Multiple Choice

How many spark plugs are used in each cylinder for a typical engine with dual ignition?

Explanation:
Dual ignition uses two spark plugs in each cylinder to provide two independent ignition sources. This redundancy helps ensure the air-fuel mixture fires even if one plug or its circuit fails, improving reliability. It also promotes more complete and quicker combustion, which enhances starting, performance, and smooth operation, especially under demanding conditions. Therefore, the typical engine with dual ignition has two spark plugs per cylinder. One plug per cylinder is for single-ignition systems, while three or four plugs per cylinder are not standard for this setup.

Dual ignition uses two spark plugs in each cylinder to provide two independent ignition sources. This redundancy helps ensure the air-fuel mixture fires even if one plug or its circuit fails, improving reliability. It also promotes more complete and quicker combustion, which enhances starting, performance, and smooth operation, especially under demanding conditions. Therefore, the typical engine with dual ignition has two spark plugs per cylinder. One plug per cylinder is for single-ignition systems, while three or four plugs per cylinder are not standard for this setup.

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