The book endeavours to present the operating principles and working aspects of thermal and hydraulic machines. First, it covers the laws and the essential principles of thermodynamics that form the basis on which thermal machines operate. It subsequently presents the principles, construction details and the methods of control of hydraulic and thermal machines. The coverage of thermal machines includes steam turbines, gas turbines, IC engines, and reciprocating and centrifugal compressors. The coverage of hydraulic machines includes hydraulic turbines, reciprocating pumps and centrifugal pumps. The classification, construction and efficiency of these machines have been discussed with plenty of diagrams and worked problems. This will help the readers to understand easily the underlying principles. The book has been primarily written for the undergraduate engineering students pursuing courses in mechanical, electrical and civil branches. Key Features Provides succinct coverage of all operating aspects of thermal and hydraulic machines. Provides a large number of worked problems at the end of each chapter to help students achieve a sound understanding of the subject matter. Includes objective type questions with explanatory answers to assist students in preparing for competitive examinations. Table Of Contents Preface 1 BASIC CONCEPTS AND ZEROTH LAW OF THERMODYNAMICS 2 FIRST LAW OF THERMODYNAMICS 3 SECOND LAW OF THERMODYNAMICS 4 PROPERTIES OF STEAM AND THERMODYNAMICS 5 VAPOUR CYCLES 6 THERMODYNAMIC CYCLES 7 STEAM TURBINES 8 GAS TURBINE 9 COMPRESSOR 10 IMPACT OF JET 11 HYDRAULIC TURBINES 12 CENTRIFUGAL PUMPS 13 RECIPROCATING PUMPS Index