Try to answer these 40 3D Printing MCQs and check your understanding of the 3D Printing subject.
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A. Granular
B. Gaseous
C. Liquid
D. No binding material is used in inkjet 3D printing
A. Nylon
B. Polyester
C. Cobalt
D. Silver
E. Polypropylene
A. Fused Deposition Modeling
B. Laminated Object Manufacturing
C. Direct Metal Laser Sintering
D. Direct Metal Laser Sintering
Which of the following is true?
a. Additive fabrication is faster than injection molding.
b. In the manufacturing of large quantities of polymer products. additive manufacturing is less expensive than injection molding.
A.
Only aÂ
B.
Only b
C.
Neither a nor b
D.
Both a and b
True or false?
Certain food products, such as chocolates, can be 3D printed.
A.
TrueÂ
B.
False
A. It is an inexpensive technique
B. it provides very high Z-resolution
C. It allows rapid assembly
D. All of the above are advantages of LOM
Which of the following is correct about Stereolithography?
a. It is the process of transforming solid plastic into liquid form.
b. It makes use of UV rays.
c. It makes use of a movable platform.
A.
Only aÂ
B.
Only bÂ
C.
Only c
D.
Both a and bÂ
E.
Both b and c Â
A. Wax
B. Glass
C. Photopolymer
D. Foam
A. Red (VeroRed)
B. Black (VeroBlackPlus)
C. Blue (VeroBlue)
D. Gray (VeroGray)
True or false?
In PolyJet 3D printing, paper is used as support material.
A.
True
B.
FalseÂ
A. Arc lamp with an LCD panel
B. Laser beam
C. Both a and b
A. Completely open
B. Completely sealed
C. Partially open
D. Partially sealed
A. AAC
B. DMG
C. STL
D. VRML
E. WRL
A.
Digital Light Processing
B.
StereolithographyÂ
C.
PolyJet Printing
D.
Selective Laser Melting
A. Digital Light Processing
B. Selective Laser Melting
C. lnkjet head 3D printing
D. Robocasting
The properties given below refer to which material?
It is a biodegradable plastic material.
It can be used for DLP/SL processes in resin format.
It is not the most durable or flexible plastic.
A.
ABS
B.
LayWood or WPC
C.
PLAÂ
D.
None of the above
Which additive manufacturing technique do the following statements refer to?
This technique creates an object, layer by layer, by extruding a f‌ilament of ink from a nozzle. It produces fragile and non-dense ceramic 3D products.
A.
PolyJet 3D Printing
B.
RobocastingÂ
C.
Fused Deposition Modeling
D.
Selective Heat Sintering
A.
Binder jetting
B.
Material jetting
C.
Selective Deposition Lamination
A. Injection molding
B. Additive manufacturing
A. Stereolithography
B. Selective Laser Sintering
C. Fused Deposition Modeling
A. Powdered
B. Liquid
C. Solidified or granular
A. Fused Deposition Modelling
B. Laser Melting
C. Selective Deposition Lamination
D. Electron Beam Melting
A. This system uses photopolymerization
B. In this system, ink-jetted materials are used to build up the layers
C. In this system, materials are kept in a single cartridge inside the printer
D. All the statements are true
A. It uses a powder bed that acts as an in-process support structure
B. Cooling time required by this process is less
C. No inf‌iltration is required by this process
D. Parts produced using this process are stronger than those produced using Stereolithography or Digital Light Processing
E. Both b and c
For which of the following processes can titanium be used in 3D printing?
1. Sintering
2. Melting
3. Electron Beam Melting
A.
Only1 and 3Â
B.
Only 2 and 3
C.
Only1 and 2
D.
All 1, 2 and 3Â Â
Which of the following is/are INCORRECT with respect to Object 3D Pro 3D printers?
1. The model grows inside a gel-like support material.
2. The printer software selects the optimal orientation for slicing and building.
3. The layer thickness of the printer is less than 12 microns.
A.
Only IÂ
B.
Only llÂ
C.
Only Ill
D.
Both l and ll
E.
Both land lll
A. High. low
B. Low. low
C. Low. high
D. High. high
Which of the following points of difference between subtractive manufacturing and additive manufacturing are true?
I. Additive manufacturing is better for complex geometries as compared to subtractive manufacturing.
ll. Additive manufacturing can be used for wood and foam, but subtractive manufacturing cannot.
lll. If larger quantities of a part are required. additive manufacturing is preferred over subtractive manufacturing.
A.
Only IÂ
B.
Only ll Â
C.
Only IllÂ
D.
Both land ll
E.
Both ll and lll
A. lnkjet heads
B. Ultraviolet lamps
C. Metal alloys
D. Both a and b
E. Both b and c
A. Laser beams
B. Ink-jet sprays
C. Both a and b
Which of the following is correct about PolyJet technology or Objet Connex printers?
I. These printers use one photopolymeric material at a time.
ll. These printers print two different materials at a time.
A.
Only I
B.
Only ll Â
C.
Both land ll
D.
Neither] nor ll
A. 3D printing facilitates rapid prototyping
B. 30 printing results in increased manufacturing speed
C. 3D printing increases productivity
D. A product of any size can be created using 3D printing
A. Modeling clay
B. Metal alloys
C. Plastic
D. Wax
A. One
B. Three
C. Five
D. Ten
A. Metal foils
B. Ceramics
C. Liquid gallium
D. Paper
E. Plastic sheets
A. Good surface f‌inish
B. Good accuracy
C. Very strong f‌inal product
D. Fast build speeds
A. It can incorporate only one type of material properties in one model
B. It is capable of multi-material printing
C. It creates smooth surfaces that have the look and feel of a f‌inal product
A. SLA cannot produce multiple parts at the same time
B. SLA parts cannot be used to create molds
C. SLA is a slow process
D. SLA has poor mechanical properties
A. DLP generates less waste than stereolithography
B. DLP yields low resolution output
C. DLP has lower running costs than stereolithography
D. DLP requires a deep vat of resin
A. Metal foil
B. Plaster
C. Photopolymer
D. Plastic film
A. Is unable to create objects with much strength
B. Is limited to plastic materials
C. Can print in an array of materials
D. Is unlikely to affect existing industries significantly