tailieunhanh - Mechanical Engineering Overview

A two-gram sample was oven-dried and placed into a 250 mL Erlenmeyer flask with 100 mL of distilled water. A reflux condenser was attached to the flask and the apparatus was placed in a gently boiling water bath for three hours. Special attention was given to insure that the level of the solution in the flask remained below that of the boiling water. Samples were then removed from the water bath and filtered by vacuum suction into a fritted glass crucible of known weight. The residue was washed with hot tap water before the crucibles. | Mechanical Engineering Overview The Field - Preparation - Day in the Life - Earnings - Employment -Development - Career Path Forecast - Professional Organizations The Field Mechanical engineering is one of the largest broadest and oldest engineering disciplines. Mechanical engineers use the principles of energy materials and mechanics to design and manufacture machines and devices of all types. They create the processes and systems that drive technology and industry. The key characteristics of the profession are its breadth flexibility and individuality. The career paths of mechanical engineers are largely determined by individual choices a decided advantage in a changing world. Mechanics energy and heat mathematics engineering sciences design and manufacturing form the foundation of mechanical engineering. Mechanics includes fluids ranging from still water to hypersonic gases flowing around a space vehicle it involves the motion of anything from a particle to a machine or complex structure. Mechanical engineers research design develop manufacture and test tools engines machines and other mechanical devices. Mechanical engineering is one of the broadest engineering disciplines. Engineers in this discipline work on power-producing machines such as electric generators internal combustion engines and steam and gas turbines. They also work on power-using machines such as refrigeration and air-conditioning equipment machine tools material handling systems elevators and escalators industrial production equipment and robots used in manufacturing. Mechanical engineers also design tools that other engineers need for their work. In addition mechanical engineers work in manufacturing or agriculture production maintenance or technical sales many become administrators or managers. Analysis design and synthesis are the key functions of mechanical engineers. The question is often how devices and processes actually work. The first step is to visualize what is happening and clearly