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What is the small space between the head and the face is known as?(a) Blank(b) Space(c) Stem(d) MarginThis question was addressed to me in exam.Query is from IC Engine topic in chapter Design of IC Engine Components of Automotive Engine Design

Answer»

The correct choice is (d) Margin

The explanation: The small SPACE between the head and the face is KNOWN as margin and the poppet valve head at the end of a rod is known as the STEM. The margin contributes to improve airflow and DURABILITY.



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