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BDifficulty 2/5

Which two common types of internal combustion engine differ in how the fuel is ignited?

Correct answer

Spark-ignition and compression-ignition engines.

Spark-ignition engines, such as petrol engines, and compression-ignition engines, such as diesels. Both are internal combustion engines; it is incorrect to contrast petrol with combustion as if petrol engines did not burn fuel. Cars can also use electric motors or combine combustion and electric power in hybrid systems.

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  • Spark-ignition and compression-ignition engines.

  • Spark-ignition and steering engines.

  • Spark-ignition and acceleration engines.

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