Question

What is the not true for plug and ring gauges for self-holding tapers?

(a) These tapers can be used for accurate alignment of tool

(b) Can be used for the purpose of transmitting the torques

(c) Use of these gauges helps in arriving at absolute deviation

(d) Tapers can be external or internal

The question was posed to me in semester exam.

I'd like to ask this question from Plug and Ring Gauges for Self holding Tapers in division Limits, Fits and Gauges of Engineering Metrology

Answer 1

Correct option is (c) Use of these gauges helps in arriving at absolute deviation

The best explanation: Self holding tapers are mostly used in the tool shanks and machine spindle noses. Purpose of using these is an accurate alignment of tools and torque transmission. Both plug and ring gauges are used to check tapers because tapers can be both external and internal.