13 - In a facility, it is desired to control the pitch and tooth diameter of the manufactured part. Which control instrument should be used for this purpose?    A) Taper Gauge  B) Screw Gauge  C) Plug Gauge  D) Johansson's Gauge  E) Snap Gauge

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Metrology of surface finish

In general terms, the application of scientific principles in the study of measurements is known as metrology. When speaking about measurement, it could be of time, length, microstructures, grain structures, internal crystal discontinuities, surface roughness, measurements of angles, height, width, and so on. While coming to the domain of mechanical engineering, metrology is considered the science of measurements of surface finish, length, surface texture, and angles.