This comprehensive book is specially developed for the candidates of Railway Recruitment Boards: senior section Engineer (br-way, bridge, works, Civil, Mechanical/DSL Mechanical, signal, carriage & wagon, electrical/disel electrical, electrical (trd/trs), design & drawing, Telecommunication, track machine & material Superintendent, estimation, research, workshop, j&t, Loco etc.) recruitment examination. This book included Previous Paper (Solved) & Study material for the purpose of practice of questions based on the latest pattern of the examination. Detailed Explanatory Answers have also been provided for the selected questions for Better understanding of the Candidates.