Engine classification terminology: diesel engines are also known as what type? Fill the blank with the standard engine classification term. Choose the correct option.
Mechanical Engineering
IC Engines and Nuclear Power Plants
Difficulty: Easy
Choose an option
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ASpark-ignition engines
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BConstant-volume engines
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CCompression-ignition engines
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DExternal-combustion engines
Answer
Correct Answer: Compression-ignition engines
Explanation
ConceptDiesel engines are compression-ignition (CI) engines: fuel auto-ignites due to high temperature produced by compressing air. Spark-ignition (SI) uses an electric spark, while EC engines (e.g., steam) burn fuel outside the working cylinder.
Final AnswerCompression-ignition engines