3D Printing MCQs

3D Printing MCQs

Try to answer these 40 3D Printing MCQs and check your understanding of the 3D Printing subject.
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1: The binding material used in inkjet 3D printing is in the form.

A.   Granular

B.   Gaseous

C.   Liquid

D.   No binding material is used in inkjet 3D printing

2: The 3D printing material alumide is a combination of powdered aluminum and.

A.   Nylon

B.   Polyester

C.   Cobalt

D.   Silver

E.   Polypropylene

3: In which type of 3D printing is melted thermoplastic squeezed through a small object for creating an object?

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.


Only a 


Only b


Neither a nor b


Both a and b


True or false?

Certain food products, such as chocolates, can be 3D printed.





6: Which of the following is NOT true about the advantages of Laminated Object Manufacturing (LOM)?

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.


Only a 


Only b 


Only c


Both a and b 


Both b and c  

8: Which of the following types of material does the material jetting technology use?

A.   Wax

B.   Glass

C.   Photopolymer

D.   Foam

9: Which of the following is NOT a rigid opaque material used by Object 3D Pro 3D printers?

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.





11: Which of the following types of light sources is/are used by Digital Light Processing (DLP)?

A.   Arc lamp with an LCD panel

B.   Laser beam

C.   Both a and b

12: In the laser sintering process, the build chamber used is.

A.   Completely open

B.   Completely sealed

C.   Partially open

D.   Partially sealed

13: Which file format serves as the standard data interface between 3D printing machines and CAD software?

A.   AAC

B.   DMG

C.   STL


E.   WRL


Working of which of the following processes is illustrated in the given image?


Digital Light Processing




PolyJet Printing


Selective Laser Melting

15: Which of the following BD printing technologies uses plaster as production material?

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.




LayWood or WPC




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.


PolyJet 3D Printing




Fused Deposition Modeling


Selective Heat Sintering


This question is based on the graphic shown below.

What process is shown in the given image?


Binder jetting


Material jetting


Selective Deposition Lamination

19: Which of the two techniques given below is faster, more flexible and less inexpensive than the other technique for producing small quantities of 3D parts?

A.   Injection molding

B.   Additive manufacturing

20: Which is the slowest process among the following?

A.   Stereolithography

B.   Selective Laser Sintering

C.   Fused Deposition Modeling

21: Gold and silver are mostly processed in the form in 3D printing.

A.   Powdered

B.   Liquid

C.   Solidified or granular

22: In which of the following processes is a plastic filament melted and then deposited. one layer at a time onto a build platform via a heated extruder?

A.   Fused Deposition Modelling

B.   Laser Melting

C.   Selective Deposition Lamination

D.   Electron Beam Melting

23: Which of the following statements is NOT true about Objet's PolyJet system?

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

24: Which of the following is/are NOT (an) advantage(s) of laser melting?

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


Only1 and 3 


Only 2 and 3


Only1 and 2


All 1, 2 and 3  


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.


Only I 


Only ll 


Only Ill


Both l and ll


Both land lll

27: The Fused Deposition Modeling method of printing requires pressure and temperature.

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.


Only I 


Only ll   


Only Ill 


Both land ll


Both ll and lll

29: Which of the following are used in a PolyJet 3D printer?

A.   lnkjet heads

B.   Ultraviolet lamps

C.   Metal alloys

D.   Both a and b

E.   Both b and c

30: What do power binding printers use to apply a rapidly-solidified binder to the powder bed in order to create new solid objects?

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.


Only I


Only ll  


Both land ll


Neither] nor ll

32: Which of the following is NOT an advantage of 3D printing?

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

33: Which of the following is used as a support material in inkjet 3D printing?

A.   Modeling clay

B.   Metal alloys

C.   Plastic

D.   Wax

34: How many materials can an Object 30 Pro 3D printer print at a time?

A.   One

B.   Three

C.   Five

D.   Ten

35: Which of following can be used to create laminated objects in Laminated Object Manufacturing?

A.   Metal foils

B.   Ceramics

C.   Liquid gallium

D.   Paper

E.   Plastic sheets

36: Which two of the following are the advantages of inkjet 3D printing?

A.   Good surface f‌inish

B.   Good accuracy

C.   Very strong f‌inal product

D.   Fast build speeds

37: Which two of the following are the features of the PolyJet technology?

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

38: Which of the following options is/are true about Stereolithography (SLA)?

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

39: Which of the following are correct about Digital Light Processing (DLP)?

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

40: Which of the following base materials does Laminated Object Manufacturing use?

A.   Metal foil

B.   Plaster

C.   Photopolymer

D.   Plastic film

41: Current 3d printing technology _____________.

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