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Technician a Says Heat Is Transferred from an Exhaust Valve

Question 21

Multiple Choice

Technician A says heat is transferred from an exhaust valve to the cylinder head through the valve seat. Technician B says some exhaust valves have a hollow stem filled with silicone to transfer heat to the valve guide. Who is correct?


A) A only
B) B only
C) both A and B
D) neither A nor B

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