The present book has been specially published for the aspirants of “Indian Army – soldier technical Trade” (previously known as MER – technical Trade) recruitment Exam. The book comprises, along with the latest Study and practice material, a Solved previous Paper and Model paper to make you well conversant with the exam pattern, The type of questions asked and their answers. Detailed Explanatory Answers have also been provided for the selected questions for Better understanding of readers. The book contains adequate study and practice material with numerous Multiple Choice Question-Answers on all the relevant subjects important from the point of view of examination. Both the Study and practice material have been prepared by respective subject-experts with due diligence. Based on the Current pattern of exam, the book will prove very useful for study, practice and during the precious moments before the exam for reference and revision. It is highly recommended to Sharpen your Problem Solving skills with thorough practice of numerous questions provided in the book, and prepare yourself to face the exam with Confidence, Successfully.