McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Mechanical Engineering .
Chapters
| 51. |
Which one is NOT related to rapid prototyping definition? |
| A. | Layer by layer |
| B. | Physical model |
| C. | From 3D CAD data |
| D. | Production line |
| Answer» D. Production line | |
| 52. |
Which one of the processes is NOT using a laser? |
| A. | FDM |
| B. | SLA |
| C. | SLS |
| D. | LOM |
| Answer» A. FDM | |
| 53. |
Which of the following is the process in the RP cycle? |
| A. | Post-processing |
| B. | Transfer to machine |
| C. | Pre-processing |
| D. | All of the above |
| Answer» D. All of the above | |
| 54. |
Which of the following is one of the design process steps? |
| A. | Build |
| B. | Concept |
| C. | Pre-processing |
| D. | Transfer to machine |
| Answer» B. Concept | |
| 55. |
What is the format for the prototyping machine file? |
| A. | .prt |
| B. | .slt |
| C. | .stl |
| D. | .iges |
| Answer» C. .stl | |
| 56. |
Which CAD software cannot be used to create data for the prototyping machine? |
| A. | CREO |
| B. | CATIA |
| C. | NX Unigraphics |
| D. | Adobe Illustrator |
| Answer» D. Adobe Illustrator | |
| 57. |
Which one of the process is subtractive prototyping? |
| A. | 5 axis CNC Milling |
| B. | Fused Deposition Modeling |
| C. | Multi-Jet Modeling |
| D. | Stereolithography Apparatus |
| Answer» A. 5 axis CNC Milling | |
| 58. |
From the following, in which process, the input material is in solid form? |
| A. | SLA |
| B. | SLS |
| C. | FDM |
| D. | MJM |
| Answer» C. FDM | |
| 59. |
Which of the process, the input material is in liquid form? |
| A. | LOM |
| B. | SLS |
| C. | FDM |
| D. | MJM |
| Answer» D. MJM | |
| 60. |
Which of the process, the input material is in powder form? |
| A. | LOM |
| B. | SLS |
| C. | FDM |
| D. | MJM |
| Answer» B. SLS | |
| 61. |
Which material is NOT available for LOM process? |
| A. | Paper |
| B. | Plastic |
| C. | Metal |
| D. | Glass |
| Answer» D. Glass | |
| 62. |
Which of the process is using the extrusion concept? |
| A. | SLA |
| B. | SLS |
| C. | FDM |
| D. | MJM |
| Answer» C. FDM | |
| 63. |
Which of the following is the process of the pre-processing stage? |
| A. | Remove support |
| B. | Checking 3D CAD data |
| C. | De-powdering loose material |
| D. | Dip in a binder to strengthen the part |
| Answer» B. Checking 3D CAD data | |
| 64. |
A computer model of a part design on a CAD system is called which of the following? |
| A. | Computer Prototype |
| B. | Geometric Prototype |
| C. | Solid Prototype |
| D. | Virtual Prototype |
| Answer» D. Virtual Prototype | |
| 65. |
Machining is never used for rapid prototyping because it takes too long. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 66. |
In the context of rapid prototyping and additive manufacturing, tessellation refers to the process of slicing the CAD model of the part into layers. |
| A. | Droplet Deposition Manufacturing |
| B. | Used-Deposition Modeling |
| C. | Laminated-Object Manufacturing |
| D. | Stereolithography |
| Answer» D. Stereolithography | |
| 67. |
Which of the following RP technologies uses powders as the starting material? |
| A. | Droplet Deposition Manufacturing |
| B. | Fused-Deposition Modeling |
| C. | Selective Laser Sintering |
| D. | Stereolithography |
| Answer» C. Selective Laser Sintering | |
| 68. |
Which of the following RP technologies uses molten material as the starting material? |
| A. | Three-Dimensional Printing |
| B. | Fused-Deposition Modeling |
| C. | Stereolithography |
| D. | Selective Laser Sintering |
| Answer» C. Stereolithography | |
| 69. |
Which one of the following RP technologies uses solid sheet stock as the starting material? |
| A. | Droplet deposition manufacturing |
| B. | Fused-deposition modeling |
| C. | Laminated-Object Manufacturing |
| D. | Selective Laser Sintering |
| Answer» C. Laminated-Object Manufacturing | |
| 70. |
Which of the following are examples of appropriate applications of additive manufacturing in the actual production of parts and products? |
| A. | Castings made in small quantities |
| B. | Plastic parts in small batch sizes |
| C. | Mass-produced metal parts |
| D. | Special textile products |
| Answer» B. Plastic parts in small batch sizes | |
| 71. |
Which of the following are problems with the current rapid prototyping and additive manufacturing technologies? |
| A. | Limited material variety |
| B. | Inability to convert a solid part into layers |
| C. | Poor machinability of the starting material |
| D. | The inability of the designer to design the part |
| Answer» A. Limited material variety | |
| 72. |
Of all of the current material addition rapid prototyping technologies, which one is the most widely used? |
| A. | Ballistic particle manufacturing |
| B. | Selective laser sintering |
| C. | Solid ground curing |
| D. | Stereolithography |
| Answer» D. Stereolithography | |
| 73. |
Which one of the following is not a rapid indirect tooling method? |
| A. | Vacuum Casting |
| B. | Investment Casting |
| C. | Laser-Engineered Net Shaping |
| D. | Injection molding |
| Answer» C. Laser-Engineered Net Shaping | |
| 74. |
Which one of the following is not a direct rapid tooling method? |
| A. | LOM Composite |
| B. | Direct AIM (ACES Injection Molding) |
| C. | Sand Molding |
| D. | Injection molding |
| Answer» D. Injection molding | |
| 75. |
In the process of Selective Laser Sintering, raw material used is in the form of ______ |
| A. | machining wax |
| B. | foam core |
| C. | powder |
| D. | rubber |
| Answer» C. powder | |
| 76. |
In Selective Laser Sintering, laser light is also being used. |
| A. | True |
| B. | False |
| Answer» A. True | |
| 77. |
Explicit support structures are not required in Selective Laser Sintering (SLS). |
| A. | True |
| B. | False |
| Answer» A. True | |
| 78. |
Which of the following process is suitable for making injection molding tools? |
| A. | SL |
| B. | SLS |
| C. | EBM |
| D. | FDM |
| Answer» B. SLS | |
| 79. |
Which one of the following is not Extrusion-Based RP Systems? |
| A. | Fused Deposition Modelling (FDM) |
| B. | 3D Printing |
| C. | Sheet Lamination (Laminated Object Manufacturing (LOM)) |
| D. | Electron Beam melting (EBM) |
| Answer» D. Electron Beam melting (EBM) | |
| 80. |
Which of the following is the firststep of the rapid prototyping process? |
| A. | 3D Modeling |
| B. | Data Conversion |
| C. | Building |
| D. | Postprocessing |
| Answer» A. 3D Modeling | |
| 81. |
Which of the following is the last step of the rapid prototyping process? |
| A. | 3D Modeling |
| B. | Data Conversion |
| C. | Building |
| D. | Postprocessing |
| Answer» D. Postprocessing | |
| 82. |
In STL files Euler’s rule for solids can be written as |
| A. | No. of faces – No. of edges + No. of vertices = 3 x No. of bodies |
| B. | No. of faces – No. of edges + No. of vertices = No. of bodies |
| C. | No. of faces – No. of edges + No. of vertices = 2 x No. of bodies |
| D. | No. of faces – No. of edges + No. of vertices = 4 x No. of bodies |
| Answer» C. No. of faces – No. of edges + No. of vertices = 2 x No. of bodies | |
| 83. |
Which of the following is a stage of Product Life Cycle? |
| A. | Introduction stage |
| B. | Growth stage |
| C. | Mature stage |
| D. | All of the above |
| Answer» D. All of the above | |
| 84. |
In “Product Life Cycle” a stage represents rapid growth of product sale known as_____. |
| A. | Saturation stage |
| B. | Mature stage |
| C. | Growth stage |
| D. | Introduction stage |
| Answer» C. Growth stage | |
| 85. |
In “Product Life Cycle” a stage represents a new and previously unknown product for buyers known as_____. |
| A. | Mature stage |
| B. | Introduction stage |
| C. | Decline stage |
| D. | None of the above |
| Answer» B. Introduction stage | |
| 86. |
In “Product Life Cycle” a stage in which buyers move on to other products and sales drop is known as_____. |
| A. | Growth stage |
| B. | Introduction stage |
| C. | Mature stage |
| D. | Decline stage |
| Answer» D. Decline stage | |
| 87. |
In “Product Life Cycle” in _______ stage market becomes saturated |
| A. | Mature stage |
| B. | Growth stage |
| C. | Decline stage |
| D. | Introduction stage |
| Answer» A. Mature stage | |
| 88. |
The technology life cycle concerned with the time and cost of developing the technology |
| A. | True |
| B. | False |
| Answer» A. True | |
| 89. |
The time duration of useful life of any product is known as a product's life cycle. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 90. |
The technology is defined as the sophistication of a plant ,any equipment or any machine etc |
| A. | True |
| B. | False |
| Answer» B. False | |
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