In heavy-duty engines, which material is used in the valves?(a) Silicon-Chromium steel(b) Nickel-Chromium steel(c) Chromium-vanadium steel(d) Hardened steelI had been asked this question by my school teacher while I was bunking the class.Question is taken from IC Engine topic in division Design of IC Engine Components of Automotive Engine Design

In heavy-duty engines, which material is used in the valves?(a) Silico

1.	In heavy-duty engines, which material is used in the valves?(a) Silicon-Chromium steel(b) Nickel-Chromium steel(c) Chromium-vanadium steel(d) Hardened steelI had been asked this question by my school teacher while I was bunking the class.Question is taken from IC Engine topic in division Design of IC Engine Components of Automotive Engine Design
Answer» The correct CHOICE is (c) Chromium-vanadium steel Best explanation: In heavy-duty ENGINES, the VALVES are made by chromium-vanadium steel and in normal CARS, nickel-Chromium steelor silicon-Chromium steel are used.

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