In a diesel cycle engine, ignition is achieved by which mechanism?

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Prepare for your ASA Powerplant Mechanic Exam with interactive flashcards and multiple choice questions. Each question features detailed hints and explanations to ensure you're ready for the test.

Multiple Choice

In a diesel cycle engine, ignition is achieved by which mechanism?

Compression-ignition is the mechanism. In a diesel engine, air is compressed to a very high pressure, heating it to a temperature high enough to ignite the fuel on contact. Diesel fuel is injected into this hot, compressed air and auto-ignites without any spark or external flame. That’s why diesel engines don’t use spark plugs or external ignition sources. Spark plug, external flame, or battery ignition are features of spark-ignition systems, not diesel’s compression-ignition process.

In a diesel cycle engine, ignition is achieved by which mechanism?

Prepare for your ASA Powerplant Mechanic Exam with interactive flashcards and multiple choice questions. Each question features detailed hints and explanations to ensure you're ready for the test.

In a diesel cycle engine, ignition is achieved by which mechanism?

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