Two technicians are discussing how to repair minor scratches on the seal surface of a shaft (the part of the shaft the seal rides on). Technician A uses a mill file. Technician B uses fine emery cloth to polish the seal surface. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Technician B is correct because using fine emery cloth to polish the seal surface is an appropriate method to repair minor scratches without removing too much material or causing further damage. A mill file, as suggested by Technician A, is too coarse for such a delicate repair and could worsen the condition of the seal surface.

Two Technicians Are Discussing How to Repair Minor Scratches on the Seal