Description

We feel satisfied in presenting the revised edition of this small booklet. The mistakes, which had crept in the previous edition, have been eliminated. The present edition has been thoroughly revised and brought up-to-date by adding six new tables and three new charts, to make it more useful for the students. We are highly thankful to Er. Sanjiv Kumar Gupta, B.Tech. (Mechanical Engineering), M.S. (Manufacturing Management) for his help in fiction. preparing the revised Although every care has been taken to check mistakes and misprints in the colossal figure work, yet it is difficult to claim perfection. Any errors, omissions and suggestions for the improvement of this booklet, brought to our notice, will be thankfully acknowledged and incorporated in the next edition.