For B.E./B.Tech./B.Arch.(1st year) student of U.P.Technical University (Unified Syllabus). Solved numerical of previous years question papers of UPTU, Lucknow and Integral University, Lucknow. The basic concepts are presented in simple language. An attempt has made to give stress on the fundamental points of each topic. The five units of the syllabus have been divided into total 15 chapters which will help students in easy understanding of the various topics.