This book is for B.Sc Engg., B.E., Dip. In Mech. Engg., Production Engg., Automobile Engg., Textile Engg., etc., I.T.I.(Draftsman Course in Mech. Engg.), A.T.I., 10+2 System, and other Engineering Examinations. According to Bureau of Indian Standards (B.I.S.) SP: 46-1988 & IS:696-1972