SJS Enterprises Interview Questions and Answers

To change 2D to 3D in CAD, extrude or revolve the 2D shape and add depth to create a solid object.

• Select the 2D shape and use the extrude or revolve command to create a 3D shape.

• Add depth to the shape by specifying the height or depth of the extrusion or revolution.

• Use the loft or sweep command to create complex 3D shapes from 2D sketches.

• Apply materials and textures to the 3D object to enhance its appearance.

Parametric and symbols are design tools used to create and modify objects in CAD software.

• Parametric design involves using mathematical equations and formulas to create objects that can be easily modified by changing the input values.

• Symbols are pre-defined shapes or objects that can be easily inserted into a design and modified as needed.

• Both tools are commonly used in CAD software to streamline the design process and improve efficiency.

• For example, a parametric design of a ...read more

Design engineering is the process of creating and developing products or systems using engineering principles and design techniques.

• Design engineering involves identifying problems and finding solutions through the use of engineering principles.

• It includes creating and developing prototypes, testing and evaluating designs, and making improvements.

• Design engineers use various tools and software to create and analyze designs, such as CAD software and simulation tools.

• Examples o...read more

CATIA surface model is a 3D modeling technique used to create complex surfaces and shapes.

• CATIA surface model is used in industries like automotive, aerospace, and industrial design.

• It allows designers to create smooth and continuous surfaces with precise control over curvature and tangency.

• CATIA surface model can be used to create complex shapes like car bodies, airplane wings, and consumer products.

• It is a powerful tool for creating aesthetically pleasing designs that are a...read more

Welding symbols are graphical representations used to communicate welding information on engineering drawings.

• Welding symbols are used to indicate the type of weld, its size, location, and other important information.

• They are typically placed on the reference line of the drawing and include various shapes and lines to convey the necessary information.

• Examples of welding symbols include the fillet weld symbol, groove weld symbol, plug weld symbol, and spot weld symbol.

• Welding ...read more

GD&T stands for Geometric Dimensioning and Tolerancing, which is a system used to define and communicate engineering tolerances.

• GD&T is used to specify the allowable variation in form, orientation, and location of features on a part or assembly

• It uses symbols and language to communicate design intent and ensure parts are manufactured correctly

• Examples of GD&T symbols include concentricity, perpendicularity, and position

• GD&T is commonly used in industries such as aerospace, au...read more

Basic tools in AutoCAD include line, circle, rectangle, arc, and hatch.

• Line tool: used to draw straight lines

• Circle tool: used to draw circles

• Rectangle tool: used to draw rectangles

• Arc tool: used to draw arcs

• Hatch tool: used to fill an enclosed area with a pattern or color

Design is the process of creating a plan or solution to meet a specific need or achieve a desired outcome.

• Design involves creating a detailed plan or blueprint for a product, system, or structure.

• It is used to solve problems, improve functionality, and enhance user experience.

• Design can be used in various fields such as engineering, architecture, graphic design, and product development.