Mechanical engineers design, analyze and help manufacture mechanical tools, engines, and machines. They are employed in almost all manufacturing sectors including Heavy machineries, ship building, and aerospace, automobile. They are also employed in engineering services and product design companies. They, carry out a wide range of design and analysis activities, in the product development lifecycle. Their key tasks include: Concept Sketching, 2D Design & Drafting, 3D Modeling, Prototyping, and Performance & Safety Analysis. In education of structural design, it imparts skills on analyzing & calculating the rigidity, stability, and strength of structures. In the land survey and transportation, it teaches on how to conduct the land survey for determine the position of points and angles distances on the land. The segment of building design up skills an individual in planning and designing layouts of a building.