Mechanical Engineering > GATE 2014 SET-3 > Metrology and Inspection
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 ________.


Correct : 93
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