Autocad Viva Questions

Introduction to AutoCAD Viva Questions

AutoCAD is one of the most important tools used in engineering, architecture, interior design, mechanical drafting, and many other technical fields. During practical exams and viva sessions, students are asked questions that test their understanding of commands, tools, and the working process of AutoCAD. Preparing for these viva questions helps you build confidence and perform better. This guide explains commonly asked AutoCAD viva questions in simple, human-friendly language.

What is AutoCAD and Why is It Used

AutoCAD viva often begins with basic questions. You may be asked what AutoCAD is and why engineers or designers use it. A clear answer is that AutoCAD is computer-aided design software developed by Autodesk. It is used for creating 2D drawings and 3D models with high accuracy. It helps in designing buildings, machines, floor plans, product layouts, and technical structures. People prefer AutoCAD because drawings made on it are precise, fast to create, and easy to edit when needed.

Understanding the AutoCAD Interface

In many Viva exams, teachers ask about the AutoCAD interface. You should know about the command line, ribbon, toolbars, workspace, status bar, model space, and layout space. A good explanation is that the command line is used to type instructions, the ribbon contains tools and commands, and model space is where you create the full-scale drawing. Layout space is used to make sheets for printing. Understanding the interface shows that you can comfortably work on actual projects.

Coordinate System and Its Types

Questions about coordinates are very common in AutoCAD Viva sessions. You may be asked about absolute, relative, and polar coordinates. Absolute coordinates use the fixed origin point. Relative coordinates take the previous point as the reference. Polar coordinates use angle and distance to place a point. Coordinate systems are important because they ensure accuracy in technical drawings.

Layers and Their Importance

Layers are a major part of any AutoCAD drawing. Viva examiners may ask why layers are used or how to create and modify layers. You can explain that layers help organise the drawing by separating different elements like walls, furniture, plumbing lines, centerlines, and dimensions. Layers allow you to control colour, linetype, visibility, and lineweight. This keeps large drawings neat and easy to edit.

Drawing Commands in AutoCAD

AutoCAD viva questions often include basic drawing commands. You should be able to explain commands like line, circle, rectangle, arc, polyline, and spline. The line command is used to draw straight sections. The circle command draws circles with a radius or a diameter. Polyline creates connected lines and curves as a single object. Knowing the purpose and use of these commands shows strong control over the software.

Modification Commands and Their Uses

Modifying objects is a major part of drafting. Interviewers may ask about move, copy, rotate, scale, offset, mirror, trim, extend, fillet, chamfer, and array. You can explain that offset creates parallel objects, trim removes extra parts, extend stretches objects to meet another boundary, fillet creates rounded corners, and mirror creates a reverse copy. These commands help in making detailed and accurate designs.

Object Properties and Precision Tools

AutoCAD viva questions also focus on object snap, ortho mode, polar tracking, grids, and snap spacing. Object snap allows selecting exact points like endpoints, centres, intersections, and midpoints. Ortho mode helps draw straight horizontal or vertical lines. Polar tracking assists in drawing at specific angles. Precision tools ensure that your technical drawings follow professional measurement standards.

Annotation Tools: Text, Dimensions, and Hatching

Annotation is an important part of AutoCAD drafting. Students are often asked how to add text, dimensions, leaders, and hatch patterns. You can explain that text can be added using single-line or multi-line text. Dimensions show the measurements of the object. Hatch patterns fill areas with textures or patterns. Dimension styles help maintain consistent text size, arrow size, and formatting across the drawing.

Plotting and Printing in AutoCAD

Many viva questions revolve around printing. You may be asked about layout space, viewports, plot scale, page setup, and plot styles. Layouts help prepare sheets for printing. Viewports display selected areas of your drawing inside the layout. Plot scale ensures the drawing prints at the correct size. Knowing how to print professionally is an important skill in AutoCAD.

Difference Between 2D and 3D in AutoCAD

Students may be asked about the difference between 2D drafting and 3D modelling. AutoCAD provides 3D tools such as extrude, revolve, sweep, loft, presspull, union, subtract, and intersect. These tools help create realistic models of buildings, machine parts, and product designs. Knowing these tools shows you understand the advanced features of AutoCAD.

Blocks and Attributes in AutoCAD

Blocks are reusable objects that save time. Viva examiners often ask how to create blocks or why they are useful. You can explain that blocks are used for items like doors, windows, bolts, nuts, and furniture symbols. They help maintain consistency and reduce repetitive work. Attributes allow adding text or information inside blocks, such as part numbers or names.

File Management and Export Options

AutoCAD viva sessions also include questions about file types. You may be asked about DWG, DXF, and DWF files. DWG is the main drawing file format. DXF is used for exporting drawings to other CAD software. DWF is used for sharing lightweight files. Understanding these formats helps you share and manage projects easily.

Common Troubleshooting Questions

Sometimes, Viva examiners ask about common issues. They may ask what to do if objects disappear, the command line is missing, or the drawing becomes slow. You can answer by checking layer visibility, enabling the command line, or using zoom extents to find objects. These questions check your real-world problem-solving skills.

AutoCAD Shortcut Keys and Their Importance

Shortcut keys help speed up work. You may be asked about shortcuts like L for line, C for circle, TR for trim, EX for extend, M for move, and CO for copy. Knowing shortcuts shows efficiency and practical experience.

Conclusion

To perform well in an AutoCAD viva, it is important to understand commands, tools, workflow, and real uses. Examiners look for clear explanations that show both knowledge and practical understanding. Preparing with these common AutoCAD viva questions will help you perform with confidence and present yourself as a skilled AutoCAD user. If you want, I can also create a 1500-word version, an SEO title, or a meta description for this article.