I am very pleased to present first book of "Elements of Mechanical Engineering - MCQs and Numerical as per GTU". This E Book is specially designed and prepared for the students studying in first year of engineering under GTU. The E Book includes multiple choice questions, important equations and numerical asked in previous GTU examinations with their solutions. I am very thankful to "The Almighty-GOD" for such positive thought and courage to implement it. I am highly obliged to our beloved Principal, Dr. R. K. Jain for providing constant source of inspiration, support and sparing time to write the forward to first edition. I am also thankful to Dr. V. N. Singh (Head, MED, ADIT) for his co-operation and moral support. I am also thankful to all colleagues for their help.