CAD - CAM Multiple Choice Questions and Answers

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

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

22. 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

23. Keyboard is a .............input device.

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

24. Light pen is a

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

25. Locating devices are classified as

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

26. M30 stands for

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

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

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

28. MRP input requires

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

29. NC contouring is an example of

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

30. 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