About the Book
The present book is based on the syllabus of first semester of diploma in engineering prescribed by Haryana State Board of Technical Education, Panchkula (HSBTE). The book has been written keeping in view the syllabus of other states also. The book is useful for all the branches of polytechnic colleges of all universities.“The topics have been dealt with basic scientific and technical details with examples and diagrams. The conceptual questions have been given in the last of every unit for better understanding. Students are advised to read these new basic questions to sharpen their understanding. The analysis of five question papers of the previous years has been given on the basis of 35 unit wise questions asked in the papers while a student has to solve only 28 questions. The proportionate marks have been calculated for 28 unit wise questions to be solved in examinations. HSBTE has allotted possible marks for every unit in syllabus. There is difference in these marks given in last column of the analysis. It will help the students to prepare those units on first priority which gives more questions and more marks in examinations. In last of every unit there are solved and unsolved numerical and other questions for revision and practice. Keeping in view the need of the applied side of topics in their future career, examples and diagrams have been included.