GeneralQuestion 115 of 120
Technician A says a dial indicator measures runout, endplay, and gear backlash. Technician B says it must be set up perpendicular to the surface for an accurate reading. Who is correct?
a.Technician A only
b.Both A and B
c.Technician B only
d.Neither A nor B
Explanation
A dial indicator measures small linear movements such as rotor runout, crankshaft endplay, and backlash, and the plunger must contact the surface perpendicularly for accuracy. Both technicians are correct. It reads deflection in thousandths of an inch.
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