CAD - CAM Multiple Choice Questions and Answers for Practice

16. In the following geometric modelling techniques, which one of the among cannot be used for finite element analysis

1. Wireframe modelling
2. Surface modelling
3. Solid modelling
4. none of the above

17. In the following geometric primitives, which is not a solid entity of CSG modelling

1. Box
2. Cone
3. Cylinder
4. Circle

18. In the following three-dimensional modelling techniques, Which do not require much computer time and memory?

1. Surface modelling
2. Solid modelling
3. Wireframe modelling
4. All of the above

19. Keyboard is a .............input device.

1. Graphical
2. Text
3. Numericals
4. All of the above

20. Light pen is a

1. Writing device
2. Drawing device
3. Locating device
4. Lighting device

21. Locating devices are classified as

1. Text input devices
2. Graphics input devices
3. Both a and b
4. None of the above

22. M30 stands for

1. End of program
2. End of block
3. End of tape and tape rewind
4. Coolant on/ off

23. Mouse is a ..............type of input device.

1. Text
2. Graphics
3. Locating
4. All of the above

24. MRP input requires

1. MPS
2. BOM
3. Inventory file
4. All of the above

25. NC contouring is an example of

1. Continuous path positioning
2. Point-to-point positioning
3. Absolute positioning
4. Incremental positioning

26. On turning lathes the machine zero point is generally at the

1. Head stock of lathe spindle nose face
2. Dead center of tail stock
3. Tool point mounted on tool post
4. none of the above

27. Stiffness is ...............to the length of the element.

1. Inversely proportional
2. Directly proportional
3. Exponential
4. Independent

28. The axes of turning machine arc

1. Z and X-axes
2. X and Y-axes
3. Z and Y-axes
4. X, Y and Z-axes

29. The curve that follows a convex hull property is

1. Cubic spline
2. B-spline
3. Bezier curve
4. None of the above

30. The degree of the Bezier curve with n control points is

1. n + 1
2. n - I
3. n
4. 2n