1. Which of the following is used as base material in Electron Beam Melting (EBM) process?
Correct : A. Titanium alloys
2. Which of the following is used as base material in Selective laser sintering (SLS)?
Correct : B. Thermoplastics, Metal powders
3. Which of the following advantage does not possess by the rapid prototyping process over the
traditional prototyping process?
Correct : D. It's cheaper
4. STL file format is represented by interaction of ______
Correct : C. lines and triangles
5. Which material possess the maximum strength?
Correct : C. Nylon
6. Which material can be efficiently used as a support material?
Correct : D. INF
7. Which material gives finest surface finish in RP?
Correct : B. PLA
8. Which materials possess highest melting temperature?
Correct : C. Nylon
9. Which file format cannot be converted into STL file format?
Correct : C. .dwg
10. STL files contains ______
Correct : B. geometrical data
11. In STL files when chord length decrease then accuracy _______
Correct : A. increase
12. Which of the following is least important in design during rapid prototyping?
Correct : B. Tolerance
13. Drilling, milling and threading are examples of which kind of processes?
Correct : B. Subtractive manufacturing
14. Which of the following is not an example of additive manufacturing?
Correct : D. Injection molding
15. In 4D printing, which one is the fourth dimension?
Correct : A. Time
16. Which of the following is not a data interfacing format?
Correct : D. RP
17. Which of the following is a data interfacing format?
Correct : A. HP/GL
18. STL consists of an unordered list of _______ facets representing the outside skin of an object.
Correct : B. triangular
19. STL file consists of which of the following format?
Correct : C. Both A & B
20. STL files plague several problems as they contain no _______ data
Correct : C. topological
21. In laminated object manufacturing (LOM), which of the following cutting strategy is
preferable?
Correct : D. Boundary cutting tool paths
22. A tessellated model is said to be valid if there are ________
Correct : D. all of the above
23. Among the following, which one is the last step in Data Processing for Rapid Prototyping?
Correct : C. Tool path generation
24. Among the following, which one is the earliest step in Data Processing for Rapid
Prototyping?
Correct : B. Part orientation
25. What type of inner structure makes the smoothest model in RP?
Correct : A. Higher resolution
26. What type of inner structure can be used to reduce the printing time of the model in RP?
Correct : C. Lower resolution
27. Which of the following is an optional section of IGES format?
Correct : D. Flag section
28. Which one is NOT related to rapid prototyping definition?
Correct : D. Production line
29. Which one of the processes is NOT using a laser?
Correct : A. FDM
30. Which of the following is the process in the RP cycle?
Correct : D. All of the above
31. Which of the following is one of the design process steps?
Correct : B. Concept
32. What is the format for the prototyping machine file?
Correct : C. .stl
33. Which CAD software cannot be used to create data for the prototyping machine?
Correct : D. Adobe Illustrator
34. Which one of the process is subtractive prototyping?
Correct : A. 5 axis CNC Milling
35. From the following, in which process, the input material is in solid form?
Correct : C. FDM
36. Which of the process, the input material is in liquid form?
Correct : D. MJM
37. Which of the process, the input material is in powder form?
Correct : B. SLS
38. Which material is NOT available for LOM process?
Correct : D. Glass
39. Which of the process is using the extrusion concept?
Correct : C. FDM
40. Which of the following is the process of the pre-processing stage?
Correct : B. Checking 3D CAD data
41. A computer model of a part design on a CAD system is called which of the following?
Correct : D. Virtual Prototype
42. Machining is never used for rapid prototyping because it takes too long.
Correct : B. False
43. In the context of rapid prototyping and additive manufacturing, tessellation refers to the
process of slicing the CAD model of the part into layers.
Correct : D. Stereolithography
44. Which of the following RP technologies uses powders as the starting material?
Correct : C. Selective Laser Sintering
45. Which of the following RP technologies uses molten material as the starting material?
Correct : C. Stereolithography
46. Which one of the following RP technologies uses solid sheet stock as the starting material?
Correct : C. Laminated-Object Manufacturing
47. Which of the following are examples of appropriate applications of additive manufacturing in
the actual production of parts and products?
Correct : B. Plastic parts in small batch sizes
48. Which of the following are problems with the current rapid prototyping and additive
manufacturing technologies?
Correct : A. Limited material variety
49. Of all of the current material addition rapid prototyping technologies, which one is the most
widely used?
Correct : D. Stereolithography
50. Which one of the following is not a rapid indirect tooling method?
Correct : C. Laser-Engineered Net Shaping
51. Which one of the following is not a direct rapid tooling method?
Correct : D. Injection molding
52. In the process of Selective Laser Sintering, raw material used is in the form of ______
Correct : C. powder
53. In Selective Laser Sintering, laser light is also being used.
Correct : A. True
54. Explicit support structures are not required in Selective Laser Sintering (SLS).
Correct : A. True
55. Which of the following process is suitable for making injection molding tools?
Correct : B. SLS
56. Which one of the following is not Extrusion-Based RP Systems?
Correct : D. Electron Beam melting (EBM)
57. Which of the following is the firststep of the rapid prototyping process?
Correct : A. 3D Modeling
58. Which of the following is the last step of the rapid prototyping process?
Correct : D. Postprocessing
59. In STL files Euler’s rule for solids can be written as
Correct : C. No. of faces – No. of edges + No. of vertices = 2 x No. of bodies
60. Which of the following is a stage of Product Life Cycle?
Correct : D. All of the above
61. In “Product Life Cycle” a stage represents rapid growth of product sale known as_____.
Correct : C. Growth stage
62. In “Product Life Cycle” a stage represents a new and previously unknown product for
buyers known as_____.
Correct : B. Introduction stage
63. In “Product Life Cycle” a stage in which buyers move on to other products and sales
drop is known as_____.
Correct : D. Decline stage
64. In “Product Life Cycle” in _______ stage market becomes saturated
Correct : A. Mature stage
65. The technology life cycle concerned with the time and cost of developing the technology
Correct : A. True
66. The time duration of useful life of any product is known as a product's life cycle.
Correct : B. False
67. The technology is defined as the sophistication of a plant ,any equipment or any
machine etc
Correct : B. False
68. ____ is a manufacturing philosophy in which different parts are manufactured in a small batch
or group based on similarities
Correct : B. Group technology
69. Which layout is mostly used for batch type of production?
Correct : B. Process layout
70. In which layout manufacturing is done according to machine arrangement
Correct : C. Process layout
71. In which layout manufacturing is done according to product's characteristics?
Correct : D. Both A & B
72. From the following which is type of coding system?
Correct : D. All of the above
73. From the following in which coding method supplementary code and form code are used?
Correct : C. OPITZ coding system
74. ____ is a collection of parts which have similar characteristics
Correct : A. Part family
75. From the following which is the step of machine cell design?
Correct : D. All of the above
76. Cellular manufacturing is not a application of thought of group technology.
Correct : A. True
77. Form which of the following is the objective of cellular manufacturing.
Correct : D. All of the above
78. ____ is a highly automated group of GT machine cell.
Correct : A. Flexible manufacturing system
79. From the following which is the main components of Flexible manufacturing system(FMS).
Correct : D. All of the above
80. From the following what is the full form of AGV?
Correct : C. Automated Guided Vehicle
81. From the following which is the types of Automated Guided Vehicle (AGV).
Correct : D. All of the above
82. From the following which method is used to guide the AGV.
Correct : D. All of the above
83. From the following which is not the application of AGV.
Correct : B. To change the tool
84. From the following which is the benefits of AGV.
Correct : C. Both A & B
85. A combination of equipment and controls which handles, stores and retrieves materials with
precision,accuracy and speed under a defined degree of automation is known as ____
Correct : A. Automated storage and retrieval system (AS/RS)
86. From the following which is the benefits of AS/RS
Correct : D. All of the above
87. From the following which is the type of FMS layout
Correct : C. Both A &B
88. What is the full form of AS/RS in FMS?
Correct : C. Automated storage and retrieval system
89. From the following in which FMS layout machine tools are kept along a straight line.
Correct : B. In line layout
90. From the following in which FMS layout workstations are arranged in a loop
Correct : C. Loop layout
91. From the following in which FMS layout workstations are arranged in a loop with rungs
Correct : A. Ladder layout
92. From the following which FMS layout is combination of many loop and ladder layout
Correct : B. Open field layout
93. From the following in which FMS layout robots are used as material handling system
Correct : D. Robot centered layout
94. If the production is done according to change in various product design easily then such manufacturing system is called as flexible system.
Correct : B. False.
95. From which of the following is not the main element of Flexible manufacturing system
Correct : A. Work handling system
96. From the following which is the function of material handling system used in FMS
Correct : B. Independent movement of part between stations
97. ____ is an independent and self-operated vehicle which moves on defined guide ways
Correct : C. Automated Guided Vehicles
98. From the following which material handling equipment is used in ladder layout of FMS
Correct : C. Both A & B
99. From the following which material handling equipment is used in Robot centered layout of FMS
Correct : A. Industrial Robot
100. ____ is a general purpose, programmable machine possessing certain human like characteristics