It's a great matter of surprise that lacks of students completes their engineering degree and they don't know the exact name of their stream in Hindi. So I am here to give you the answer of your question.
Simple Definition of mechanical engineering
: a type of engineering that is mainly concerned with the use of machines in industry
Full Definition of mechanical engineering
: a branch of engineering concerned primarily with the industrial application of mechanics and with the production of tools, machinery, and their products
Technically, mechanical engineering is the application of the principles and problem-solving techniques of engineering from design to manufacturing to the marketplace for any object. Mechanical engineers analyze their work using the principles of motion, energy, and force — ensuring that designs function safely, efficiently, and reliably, all at a competitive cost.
यान्त्रिक अभियांत्रिकी (Mechanical engineering) तरह-तरह की मशीनों की बनावट, निर्माण, चालन आदि का सैद्धान्तिक और व्यावहारिक ज्ञान है। यान्त्रिक अभियांत्रिकी, अभियांत्रिकी की सबसे पुरानी और विस्तृत शाखाओं में से एक है। यान्त्रिक अभियांत्रिकी १८वीं शताब्दी में यूरोप में औद्योगिक क्रांति के दौरान एक क्षेत्र के रूप में उभरी है, लेकिन, इसका विकास दुनिया भर में कई हजार साल में हुआ है। १९वीं सदी में भौतिकी के क्षेत्र में विकास के एक परिणाम के रूप में यांत्रिक अभियांत्रिकी विज्ञान सामने आया।
Mechanical engineering is the discipline that applies the principles of engineering, physics, and materials science for the design, analysis, manufacturing, and maintenance of mechanical systems. It is the branch of engineering that involves the design, production, and operation of machinery. It is one of the oldest and broadest of the engineering disciplines.
Mechanical Engineering is the broadest of all engineering disciplines, encompassing areas such as energy, fluid mechanics, dynamics, combustion, vibration, design, manufacturing processes, systems modeling and simulation, mechatronics, robotics, mechanics of material, rapid prototyping and composites.
Mechanical engineering is one of the oldest branches of engineering, dating back to when the first wheels were put to practical use by mounting them on an axle to make a cart. Throughout recorded history, people have been inventing and building increasingly more sophisticated devices and machines in order to improve the conditions of life. Many of the machines we encounter every day — cars, appliances, tools and climate control systems — were made possible by mechanical engineers.
Mechanical engineering is a diverse subject that derives its breadth from the need to design and manufacture everything from small individual parts and devices (e.g., microscale sensors and inkjet printer nozzles) to large systems (e.g., spacecraft and machine tools). The role of a mechanical engineer is to take a product from an idea to the marketplace. In order to accomplish this, a broad range of skills are needed. The mechanical engineer needs to acquire particular skills and knowledge. He/she needs to understand the forces and the thermal environment that a product, its parts, or its subsystems will encounter; to design them for functionality, aesthetics, and the ability to withstand the forces and the thermal environment they will be subjected to; and to determine the best way to manufacture them and ensure they will operate without failure. Perhaps the one skill that is the mechanical engineer’s exclusive domain is the ability to analyze and design objects and systems with motion.
