The book 12 Practice Sets for RRB Junior Engineer Mechanical & Allied Engineering Stage II Exam with 3 Online Tests provides 12 Practice Sets - 9 in the book and 3 Online - on the exact pattern as specified in the latest notification. • The book also provides 2014 , 2015 & 2019 Solved Papers. • Each Practice Set contains 150 questions divided into 5 sections: Physics & Chemistry (15), General Awareness (15), Basic Computer Fundamentals (10), Basic Environmental & Pollution Control (10) and Technical Abilities (100). • The solution to each Test is provided at the end of the book. • This book will really help the students in developing the required Speed and Strike Rate, which can increase their final score by 15% in the final exam.