Correct option is C
A
Vernier height gauge is a precision measuring instrument used for
scribing horizontal lines on a workpiece at a desired height. It consists of a
main scale, vernier scale, a scriber, and a base for stability.
Functions of a Vernier Height Gauge:
·
Scribing horizontal lines – Used in layout work to mark precise horizontal reference lines.
·
Measuring height – Determines the height of a workpiece from a reference surface.
·
Checking surface flatness – Ensures accuracy in machining operations.
·
Inspecting right-angle surfaces – Verifies perpendicularity using a dial indicator.
