Mathematics For Machine Technology
Mathematics For Machine Technology
8th Edition
ISBN: 9781337798310
Author: Peterson, John.
Publisher: Cengage Learning,
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Chapter 37, Problem 1A
To determine

The thickness of the cover of a book measured with the help of digital micrometer.

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Explanation of Solution

Digital micrometers can be used to measure the linear dimensions such as length, diameter and thickness. The main components of a micrometer are frame, anvil, lock nut,thimble marks,ratchet stop, spindle, sleeve,display with LCD screen, units conversion key, and the key for turning ON and OFF.

The thickness of the book can be measured in the following steps.

  1. Dry all the surfaces of the micrometer and clean the surfaces with the help of cloth or a cloth soaked or dipped in the cleaning oil.
  2. Mathematics For Machine Technology, Chapter 37, Problem 1A , additional homework tip  1

  3. The digital micrometer is to be closed completely and the thimble is to be turn in such a manner that the zero line aligns to the center line of sleeve.
  4. Mathematics For Machine Technology, Chapter 37, Problem 1A , additional homework tip  2

    Mathematics For Machine Technology, Chapter 37, Problem 1A , additional homework tip  3

  5. Now the ON/OFF button should be pressed on the digital micrometer. The zero reading on the digital micrometer means that the thickness of the book can be read directly.If the reading on the micrometer is not zero, the thimble and ratchet stop is to be adjusted so that it reads zero.
  6. The jaws of the digital micrometer are opened by carefully revolving ratchet of the micrometer.
  7. Mathematics For Machine Technology, Chapter 37, Problem 1A , additional homework tip  4

  8. The cover of a book is placed inside the anvil of the micrometer. The micrometer anvil is kept vertically to the book thickness to be measured.
  9. The locknut on the digital micrometer are locked so that there is no further change in the reading of the digital micrometer.
  10. The result will vary depending on the type of cover used for measurement.
  11. The average thickness of the cover of a book is 0.1 mm.

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