# GATE Questions & Answers of Linear and Angular Measurements

## What is the Weightage of Linear and Angular Measurements in GATE Exam?

Total 7 Questions have been asked from Linear and Angular Measurements topic of Metrology and Inspection subject in previous GATE papers. Average marks 1.57.

The height (in mm) for a 125 mm sine bar to measure a taper of $27^\circ\;32'$ on a flat work piece is _______ (correct to three decimal places).

For the situation shown in the figure below the expression for $H$ in terms of $r,R$ and $D$ is Which one of the following instruments is widely used to check and calibrate geometric features of machine tools during their assembly?

The diameter of a recessed ring was measured by using two spherical balls of diameter d2=60 mm and d1=40 mm as shown in the figure. The distance H2=35.55 mm and H1=20.55 mm. The diameter (D, in mm) of the ring gauge is _______

A metric thread of pitch 2 mm and thread angle 60° is inspected for its pitch diameter using 3-wire method. The diameter of the best size wire in mm is

A taper hole is inspected using a CMM, with a probe of 2mm diameter. At a height, Z=10mm from the bottom, 5 points are touched and a diameter of circle (not compensated for probe size) is obtained as 20mm. similarly, a 40mm diameter is obtained at a height Z = 40mm. the smaller diameter (in mm) of hole at Z = 0 is  