Geometrical drawings play an important role in conveying the ideas of engineers, scientists
and inventors. In particular, its role is very important in technical drawings, like of machines
and their production procedure applications, civil engineering activities, like construction of
reservoirs, dams, roadways, structures, buildings, etc., and involvement in electrical
engineering aspects, like generators, electrical equipment design, etc.
This book undertakes ‘step-by-step understanding of the projection concepts of 2-D and
3-D objects, with diagrammatical explanations. The contents are developed in transition
from basics of simple constructions of plane figures to complexity of the remaining chapters
(3-D objects) including the generalised approaches without compromising on the
connectivity through the chapters.
Arun Vikram Kothapalli obtained his graduation in Mechanical Engineering from Bapatla
Engineering College, Nagarjuna University, Guntur, and postgraduation in Mechanical
Engineering with specialisation in CAD/CAM from Andhra University College of
Engineering, Visakhapatnam. Presently, he is working as faculty in Department of Industrial
Engineering, GITAM Institute of Technology, GITAM University, Visakhapatnam. He has an
experience of 5 years in the field and 6 years in teaching. He has also published Fluid
Mechanics and Machinery. His research interests include MEMS, CAD, engineering
optimisation, structural health monitoring, CFD, and mechanical vibrations.
Ratnam Chanamala obtained his B.E. (Mech.) and M.E. (Machine Design) from Andhra
University College of Engineering, Visakhapatnam, and PhD. from IIT Madras. He is a fellow
of Institution of Engineers, and life member of Indian Society of Technical Education and
Computer Society of India. He is Professor, Department of Mechanical Engineering, Andhra
University, Visakhapatnam. He has 28 years of experience in teaching and has wide
experience of administration as Assistant Principal, A.U. College of Engineering, Regional
Coordinator, EAMCET, and ECET (FDH) and as DEAN of Examinations, AUCE (A).
Vasudeva Rao Pampana obtained his B.Tech. (Civil) from V.R.S.E. College, Vijayawada
(Nagarjuna University), and M.Tech. and PhD. (Geotechnical Engineering) from Motilal
Nehru National Institute of Technology, Allahabad (Formerly, M.N. Regional Engineering
College). He has 6 years of experience in teaching, 2 years of field work and 3 years of
research. He has published papers in various international/national journals, conferences
He has published around 20 papers in various international/national journals and
conferences. About 14 doctoral students are pursuing their doctorates under his guidance.
His research interests include stress analysis, mechanical vibrations, engineering
optimisation, and structural health monitoring.