Technician A says that the pressure rating of a radiator cap at which the pressure-relief valve opens is stamped on the radiator. Technician B says that a vacuum valve incorporated into the cap allows air or coolant to reenter the cooling system when the pressure drops after the engine cools. Who is right?
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 that the pressure rating of a radiator cap at which the pressure-relief valve opens is stamped on the radiator. Technician B says that a vacuum valve incorporated into the cap allows air or coolant to reenter the cooling system when the pressure drops after the engine cools. Who is right?
A)A only"
B)B only"
C)Both A and B
D)Neither A nor B"

Technician a Says That the Pressure Rating of a Radiator