3DPD2021-Quiz
1.
Which of the following technologies is capable of printing metal?
a) Fused deposition modeling (FDM)
b) Stereolithography (SLA)
c) Material jetting (MJ)
d) Selective laser melting (SLM)
Ans. d) Selective laser melting (SLM)
2.
Which of the following is not an example of additive manufacturing?
a)
b)
c)
d)
Fused-deposition-modeling
Electron beam machining
SLS
Injection molding
Ans. d) Injection molding
3.
Choose the correct sequence to generate prototype.
a) 3D CAD data - CAD solid model - STL file - RP prototype
b) STL file - 3D CAD data - CAD solid model - RP prototype
c) CAD solid model - 3D CAD data - RP prototype - STL file
d) 3D CAD data - STL file - CAD solid model - RP prototype
Ans. a) 3D CAD data - CAD solid model - STL file - RP prototype
4.
Which of the following is not a Solid-based RP system?
a)
b)
c)
d)
Laminated Object Manufacturing (LOM)
Paper Lamination Technology (PLT)
Electron Beam Melting (EBM)
Fused Deposition Modeling (FDM)
Ans. c) Electron Beam Melting (EBM)
5.
Full form of LENS is______.
a)
b)
c)
d)
Lamination Electron Net Sintering
Laminated Engineered Net Shaping
Laser Engineered Net Shaping
Laser Engineered Net Sintering
Ans. c) Laser Engineered Net Shaping
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6.
Additive manufacturing uses much less material than other subtractive manufacturing
processes
a) True
b) False
Ans. a) True
7.
Which of the following does NOT influence how refined the 3D printed part will be?
a)
b)
c)
d)
Layer thickness
Using support material
Part orientation
all the above
Ans. b) Using support material
8.
9.
Which of the following is typically the most expensive type of 3D printer?
a)
b)
c)
d)
FFF
SLA
LOM
SLM
Ans. d)
SLM
Which of the following is typically the cheapest type of 3D printer?
a)
b)
c)
d)
FFF
SLA
SLM
SGC
Ans. a) FFF
10.
Which type of 3D printer uses a pool of resin to create the solid part?
a)
b)
c)
d)
FFF
SLS
SLA
SLM
Ans. c) SLA
11.
In which 3D Printing process, post curing required?
a) Fused Deposition Modeling
b) Laminated Object Manufacturing
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c) Stereolithography
d) Selective Laser Melting
Ans. c) Stereolithography
12.
STL stands for
a) Support Triangulation Language
b) Standard Tessellation Language
c) Standard Template Language
d) None of above
Ans. b)
13.
Standard Tessellation Language
SLA printing uses a plastic strand that's pushed through a heated nozzle
a) True
b) False
Ans. b) False
14.
What is the full form of SLS
a)
b)
c)
d)
Selective Layer Sintering
Selective Laser Sintering
Selective lithographic solution
Specified Laser Sintering
Ans. b) Selective Laser Sintering
15.
Slicing operation produces
a)
b)
c)
d)
Ans. a)
16.
17.
Contours or profiles
Extruder temperature
Bed temperature
Infill density
Contours or profiles
Which of the following is not a design consideration for 3D printing?
a) Material
b) Tolerance
c) Size of build tray
d) CAD software
Ans. d) CAD software
Carving, drilling, milling and chiselling are all examples of what?
a) Additive manufacturing
b) Subtractive manufacturing
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c) Cutting
d) Forming
Ans. b) Subtractive manufacturing
18.
Facet data in STL file is stored in the form of
a)
b)
c)
d)
Ans. c)
19.
Two vertices 2 facet normal
one vertices 3 Facet normal
Three vertices 1 facet normal
Four vertices
Three vertices 1 facet normal
What purpose does support material serve in 3D printing?
a)
b)
c)
d)
It increases the durability of the final product
It allows easier assembly and post-processing
It reduces waste
It supports layers as they are printed, functioning as scaffolding
Ans. d) It supports layers as they are printed, functioning as scaffolding
20.
What considerations must you make when choosing a 3D printing technology?
Tick all that apply.
a) Material
b) Durability
c) Melting point
d) Surface finish
e) Focus group input
f) Time
g) Detail
h) Application
Ans. a) Material, b) Durability, d) Surface finish, f) Time, g) Detail, h) Application
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