Question

Which of the following is used as a support in the blind hole when the internal taper is measured by using balls?

(a) Wooden block

(b) Slip gauges

(c) Balls of larger diameter

(d) Internal taper itself acts as a support

The question was asked in examination.

I'm obligated to ask this question of Measure an Internal Taper in Blind Hole in portion Miscellaneous Measurements (EM) of Engineering Metrology

Answer 1

Correct answer is (b) Slip gauges

Explanation: A combination of slip gauges of height let ‘h’ is prepared and placed in the hole as support. Now, place the two balls in the upper position. Each ball touched the tapered side of the hole and space is filled with another combination of slip gauges.