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What is the face angle range for a poppet valve?(a) 20° to 50°(b) 35° to 60°(c) 30° to 45°(d) 40° to 55°The question was posed to me in an online interview.This intriguing question originated from IC Engine topic in section Design of IC Engine Components of Automotive Engine Design

Answer»

Correct option is (c) 30° to 45°

Best explanation: 30° to 45° is the face angle RANGE for a poppet valve. The face angle and the face can be ALTERED accordingly using GRINDING or SKIMMING MACHINES.



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