McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Mechanical Engineering .
Chapters
| 1. |
From following, the alternative name for RP is ________ |
| A. | Additive Manufacturing |
| B. | Layer Manufacturing |
| C. | Direct CAD Manufacturing |
| D. | All of the above |
| Answer» D. All of the above | |
| 2. |
Input of RP data is ______ |
| A. | CAM data |
| B. | CAPP data |
| C. | CAD data |
| D. | All of the above |
| Answer» C. CAD data | |
| 3. |
In the ___________ process, one starts with a single block of solid material larger than the final size of the desired object and material is removed until the desired shape is reached. |
| A. | Subtractive process |
| B. | Additive process |
| C. | Formative process |
| D. | All of above |
| Answer» A. Subtractive process | |
| 4. |
__________ is one where mechanical forces or restricting forms are applied on a material so as to form it into the desired shape |
| A. | Subtractive process |
| B. | Additive process |
| C. | Formative process |
| D. | All of above |
| Answer» C. Formative process | |
| 5. |
Which of the following is not subtractive process? |
| A. | Milling |
| B. | Stereo-lithography |
| C. | Sawing |
| D. | EDM |
| Answer» B. Stereo-lithography | |
| 6. |
Which of the following process is not formative process? |
| A. | Bending |
| B. | Plastic injection molding |
| C. | Selective Laser Sintering |
| D. | Forging |
| Answer» C. Selective Laser Sintering | |
| 7. |
Choose the correct sequence to generate prototype |
| A. | 3D CAD data - CAD solid model - STL file - RP prototype |
| B. | CAD solid model - 3D CAD data - RP prototype - STL file |
| C. | STL file - 3D CAD data - CAD solid model - RP prototype |
| D. | 3D CAD data - STL file - CAD solid model - RP prototype |
| Answer» A. 3D CAD data - CAD solid model - STL file - RP prototype | |
| 8. |
Which of the following can not be the input of CAD solid model? |
| A. | Physical mockup |
| B. | 2D surface data |
| C. | Tooling |
| D. | 3D CAD data |
| Answer» C. Tooling | |
| 9. |
Full form of STL is _____ |
| A. | Straight-lithography |
| B. | Streto-lithography |
| C. | Stereo-lithography |
| D. | Straight-lipsography |
| Answer» C. Stereo-lithography | |
| 10. |
For rapid prototyping 3D CAD model should be converted into______file |
| A. | SGC |
| B. | SLA |
| C. | STL |
| D. | SLS |
| Answer» C. STL | |
| 11. |
Process of converting STL file model in to layers is called________in RP |
| A. | chopping |
| B. | slicing |
| C. | cutting |
| D. | trimming |
| Answer» B. slicing | |
| 12. |
Support structures are required for ______ |
| A. | thin portions |
| B. | thick portions |
| C. | overhanging portions |
| D. | all of the above |
| Answer» C. overhanging portions | |
| 13. |
The STL files translate the part geometry from a CAD system to________ |
| A. | CNC machine |
| B. | VMC machine |
| C. | RP machine |
| D. | CAPP machine |
| Answer» C. RP machine | |
| 14. |
Slicing a part is easier in ______ |
| A. | B-rep method |
| B. | STL method |
| C. | CSG method |
| D. | PRT method |
| Answer» B. STL method | |
| 15. |
STL file converts curved surfaces into_______ |
| A. | Polygons |
| B. | Lines |
| C. | Surfaces |
| D. | None of the above |
| Answer» A. Polygons | |
| 16. |
Which of the following is not Liquid-based RP system? |
| A. | Stereolithography Apparatus (SLA) |
| B. | Laminated Object Manufacturing (LOM) |
| C. | Solid Ground Curing (SGC) |
| D. | Solid Object Ultraviolet-Laser Printer (SOUP |
| Answer» B. Laminated Object Manufacturing (LOM) | |
| 17. |
Full form of FDM is_______ |
| A. | Fixed Development Modelling |
| B. | Fusion Development Modelling |
| C. | Fused Deposition Modelling |
| D. | Focused Deposition Modelling |
| Answer» C. Fused Deposition Modelling | |
| 18. |
Full form of MJM is______ |
| A. | Multi Joint Modelling |
| B. | Multi Jet Modelling |
| C. | Muted Jet Modelling |
| D. | Mitred Jet Modelling |
| Answer» B. Multi Jet Modelling | |
| 19. |
Which of the following is not Solid-based RP system? |
| A. | Laminated Object Manufacturing (LOM) |
| B. | Paper Lamination Technology (PLT) |
| C. | Electron Beam Melting (EBM) |
| D. | Fused Deposition Modeling (FDM) |
| Answer» C. Electron Beam Melting (EBM) | |
| 20. |
Laminated Object Manufacturing (LOM) is developed by_______ |
| A. | Stratasys |
| B. | CAM-LEM |
| C. | Kira Corporation |
| D. | Cubic Technologies |
| Answer» D. Cubic Technologies | |
| 21. |
Which of the following is not Powder-Based RP system? |
| A. | Selective Laser Sintering (SLS) |
| B. | Solid Object Ultraviolet-Laser Printer (SOUP) |
| C. | Electron Beam Melting (EBM) |
| D. | Direct Metal Deposition (DMD) |
| Answer» B. Solid Object Ultraviolet-Laser Printer (SOUP) | |
| 22. |
Which of the following RP system is not developed by 3D systems? |
| A. | Selective Laser Sintering (SLS) |
| B. | Multi-Jet Modeling System (MJM) |
| C. | Paper Lamination Technology (PLT) |
| D. | Stereolithography Apparatus (SLA) |
| Answer» C. Paper Lamination Technology (PLT) | |
| 23. |
Which of the following is used as base material in Stereolithography (SLA) process? |
| A. | Thermoplastics , Metals powders |
| B. | Thermoplastics , Eutectic metals. |
| C. | Titanium alloys |
| D. | Photopolymer |
| Answer» D. Photopolymer | |
| 24. |
Which of the following is used as base material in Electron Beam Melting (EBM) process? |
| A. | Titanium alloys |
| B. | Photopolymer |
| C. | Various materials |
| D. | Paper |
| Answer» A. Titanium alloys | |
| 25. |
Which of the following is used as base material in Selective laser sintering (SLS)? |
| A. | Photopolymer |
| B. | Thermoplastics, Metal powders |
| C. | Titanium alloys |
| D. | Various materials |
| Answer» B. Thermoplastics, Metal powders | |
| 26. |
Which of the following advantage does not possess by the rapid prototyping process over the traditional prototyping process? |
| A. | It consumes less time |
| B. | Gives better quality |
| C. | Reduces product launch time |
| D. | It's cheaper |
| Answer» D. It's cheaper | |
| 27. |
STL file format is represented by interaction of ______ |
| A. | lines and hexagons |
| B. | lines and rectangles |
| C. | lines and triangles |
| D. | lines and circles |
| Answer» C. lines and triangles | |
| 28. |
Which material possess the maximum strength? |
| A. | ABS |
| B. | PLA |
| C. | Nylon |
| D. | INF |
| Answer» C. Nylon | |
| 29. |
Which material can be efficiently used as a support material? |
| A. | ABS |
| B. | PLA |
| C. | Nylon |
| D. | INF |
| Answer» D. INF | |
| 30. |
Which material gives finest surface finish in RP? |
| A. | ABS |
| B. | PLA |
| C. | Nylon |
| D. | INF |
| Answer» B. PLA | |
| 31. |
Which materials possess highest melting temperature? |
| A. | ABS |
| B. | PLA |
| C. | Nylon |
| D. | INF |
| Answer» C. Nylon | |
| 32. |
Which file format cannot be converted into STL file format? |
| A. | .prt |
| B. | .sld |
| C. | .dwg |
| D. | .stp |
| Answer» C. .dwg | |
| 33. |
STL files contains ______ |
| A. | mass properties of the model |
| B. | geometrical data |
| C. | drawing data |
| D. | all of the above |
| Answer» B. geometrical data | |
| 34. |
In STL files when chord length decrease then accuracy _______ |
| A. | increase |
| B. | decrease |
| C. | may increase or may decrease |
| D. | remains constant |
| Answer» A. increase | |
| 35. |
Which of the following is least important in design during rapid prototyping? |
| A. | Machine size |
| B. | Tolerance |
| C. | Material |
| D. | CAD software |
| Answer» B. Tolerance | |
| 36. |
Drilling, milling and threading are examples of which kind of processes? |
| A. | Additive manufacturing |
| B. | Subtractive manufacturing |
| C. | Formative manufacturing |
| D. | None of the above |
| Answer» B. Subtractive manufacturing | |
| 37. |
Which of the following is not an example of additive manufacturing? |
| A. | Fused-deposition-modeling |
| B. | Electron beam machining |
| C. | SLS |
| D. | Injection molding |
| Answer» D. Injection molding | |
| 38. |
In 4D printing, which one is the fourth dimension? |
| A. | Time |
| B. | Material |
| C. | Sound |
| D. | Light |
| Answer» A. Time | |
| 39. |
Which of the following is not a data interfacing format? |
| A. | STL |
| B. | SLC |
| C. | LEAF |
| D. | RP |
| Answer» D. RP | |
| 40. |
Which of the following is a data interfacing format? |
| A. | HP/GL |
| B. | ACER |
| C. | ASUS |
| D. | IBM |
| Answer» A. HP/GL | |
| 41. |
STL consists of an unordered list of _______ facets representing the outside skin of an object. |
| A. | linear |
| B. | triangular |
| C. | square |
| D. | hexagonal |
| Answer» B. triangular | |
| 42. |
STL file consists of which of the following format? |
| A. | ASCII |
| B. | Binary |
| C. | Both A & B |
| D. | Neither A nor B |
| Answer» C. Both A & B | |
| 43. |
STL files plague several problems as they contain no _______ data |
| A. | geographical |
| B. | analytical |
| C. | topological |
| D. | all of the above |
| Answer» C. topological | |
| 44. |
In laminated object manufacturing (LOM), which of the following cutting strategy is preferable? |
| A. | Directional scanning |
| B. | Zigzag tool paths |
| C. | Contouring and spiral paths |
| D. | Boundary cutting tool paths |
| Answer» D. Boundary cutting tool paths | |
| 45. |
A tessellated model is said to be valid if there are ________ |
| A. | no missing facets |
| B. | no degenerate facets |
| C. | no overlapping facets |
| D. | all of the above |
| Answer» D. all of the above | |
| 46. |
Among the following, which one is the last step in Data Processing for Rapid Prototyping? |
| A. | Model slicing |
| B. | Part orientation |
| C. | Tool path generation |
| D. | Support generation |
| Answer» C. Tool path generation | |
| 47. |
Among the following, which one is the earliest step in Data Processing for Rapid Prototyping? |
| A. | Model slicing |
| B. | Part orientation |
| C. | Tool path generation |
| D. | Support generation |
| Answer» B. Part orientation | |
| 48. |
What type of inner structure makes the smoothest model in RP? |
| A. | Higher resolution |
| B. | Larger polygons |
| C. | Lower resolution |
| D. | None of the above |
| Answer» A. Higher resolution | |
| 49. |
What type of inner structure can be used to reduce the printing time of the model in RP? |
| A. | Higher resolution |
| B. | Smaller polygons |
| C. | Lower resolution |
| D. | None of the above |
| Answer» C. Lower resolution | |
| 50. |
Which of the following is an optional section of IGES format? |
| A. | Start section |
| B. | Global section |
| C. | Terminate section |
| D. | Flag section |
| Answer» D. Flag section | |
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