contestada

Technician A says that narrow valve seats exert a higher force on the seat area. Technician B says that if intake and exhaust valve springs are of equal pressure, then the larger valve must have a narrower seat in order to have the same seating pressure as the smaller valve. Who is right?
a. Technician A only
b. Technician B only
c. Both A and B
d. Neither A nor B

Respuesta :

Explanation:

I think both are correct.

Narrow seats have less area, therefore, given the same pressure the narrow seats will have greater force.

If the springs are of equal pressure, the larger valve must have narrower seats such that the seat AREA is the same between the two valves. If the area is the same and the pressure is the same, the force will be the same.

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