question archive Technician A says the zinc phosphate  coating is nearly an airtight coating over the  bare metal surface

Technician A says the zinc phosphate  coating is nearly an airtight coating over the  bare metal surface

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Technician A says the zinc phosphate

 coating is nearly an airtight coating over the

 bare metal surface. Technician B says the

 zinc phosphate coating must be covered

 with a topcoat in order to preserve its

 corrosion-protecting capabilities. Who is

 correct?

 A)Technician A only

 B)Technician B only

 C) Both Technicians A and B

 D) Neither Technician A nor B

Option 1

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