In near future, energy become a luxury item and water is considered as the most vital item in the world due to reduction of water resources in most regions. In this condition, role of water science researchers and hydraulic experts is more important than ever. If a hydraulic engineer student is not educated well, he/she will not solve problems of hydraulic sciences in future. Many engineer students learn all necessary lessons in the university, but they cannot to answer to the problems or to pass the exams because of forgetfulness or lack of enough exercise. This book contains one hundred essential problems related to hydraulic engineering with a small volume. Undoubtedly, many problems can be added to the book but the author tried to mention only more important problems and to prevent increasing volume of the book due to help to feature of portability of the book. To promotion of student skill, both SI and English systems have been used in the problems. All of the problems were solved completely. This book is useful for not only exercising and passing the university exams but also for use in actual project as a handbook...