CAD - CAM Multiple Choice Questions and Answers

21. 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

22. Keyboard is a .............input device.

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

23. Light pen is a

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

24. Locating devices are classified as

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

25. M30 stands for

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

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

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

27. MRP input requires

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

28. NC contouring is an example of

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

29. 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

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

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