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

Question

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The Answer of 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

Technician a Says Heat Is Transferred from an Exhaust Valve