3D printing Test Fiverr
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?
Injection molding
Additive manufacturing
Which two of the following are the features of the PolyJet technology?
It can incorporate only one type of material properties in one model
it is capable of multi-material printing
it creates smooth surfaces that have the look and feel of a final product
Which of the following types of light sources is/are used by Digital Light Processing (DLP)?
Arc lamp with an LCD panel
Laser beam
Both a and b
Which file format serves as the standard data interface between 3D printing machines and CAD software?
AAC
DMG
STL
VRML
WRL
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.
ABS
LayWood or WPC
PLA
None of the above
Which of the following is NOT a rigid opaque material used by Object 30 Pro 3D printers?
Red (VeroRed)
Black (VeroBlackPlus)
Blue (VeroBlue)
Gray (VeroGray)
In the laser sintering process, the build chamber used is ________.
Completely open
Completely sealed
Partially open
Partially sealed
Which of the following is/are INCORRECT with respect to Object 30 Pro 3D printers?
I. The model grows inside a gel-like support material.
II. The printer software selects the optimal orientation for slicing and building.
III. The layer thickness of the printer is less than 12 microns.
Only I
Only II
Only III
Both I and II
Both I and III
Which is the slowest process among the following?
Stereolithography
Selective Laser Sintering
Fused Deposition Modeling
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
For which of the following processes can titanium be used in 3D printing?
1. Sintering
2. Melting
3. Electron Beam Melting
Only 1 and 3
Only 2 and 3
Only 1 and 2
All 1, 2 and 3
Which of following can be used to create laminated objects in Laminated Object Manufacturing?
Metal foils
Ceramics
Liquid gallium
Paper
Plastic sheets
Which of the following statements is NOT true about Objet's PolyJet system?
This system uses photopolymerization
In this system, ink-jetted materials are used to build up he layers
In this system, materials are kept in a single cartridge inside the printer
All the statements are true
Which of the following are used in a PolyJet 3D printer?
Inkjet heads
Ultraviolet lamps
Metal alloys
Both a and b
Both b and c
Which of the following is NOT true about the advantages of Laminated Object Manufacturing (LOM)?
It is an inexpensive technique
It provides very high Z-resolution
It allows rapid assembly
All of the above are advantages of LOM
Which of the following is correct about PolyJet technology or Objet Connex printers?
I. These printers use one photopolymeric material at a time.
II. These printers print two different materials at a time.
Only I
Only II
Both I and II
Neither I nor II
The 3D printing material alumide is a combination of powdered aluminum and ________.
Nylon
Polyester
Cobalt
Silver
Polypropylene
True or false?
Certain food products, such as chocolates, can be 3D printed.
True
False
Which of the following is NOT an advantage of 3D printing?
3D printing facilitates rapid prototyping
3D printing results in increased manufacturing speed
3D printing increases productivity
A product of any size can be created using 3D printing
In which type of 3D printing is melted thermoplastic squeezed through a small object for creating an object?
Fused Deposition Modeling
Laminated Object Manufacturing
Direct Metal Laser Sintering
Digital Light Processing
The Fused Deposition Modeling method of printing requires ________ pressure and ________ temperature
High, low
Low, low
Low, high
High, high
Working of which of the following processes is illustrated in the given image?
Digital Light Processing
Stereolithography
PolyJet Printing
Slective Laser Melting
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
Robocasting
Fused Deposition Modeling
Selective Heat Sintering
How many materials can an Object 30 Pro 3D printer print at a time?
One
Three
Five
Ten
True or false?
In PolyJet 3D printing, paper is used as support material.
True
False
Which of the following are correct about Digital Light Processing (DLP)?
DLP generates less waste than stereolithography
DLP yields low resolution output
DLP has lower running costs than stereolithography
DLP requires a deep vat of resin
What process is shown in the given image?
Binder jetting
Material jetting
Selective Deposition Lamination
Gold and silver are mostly processed in the ________ form in 3D printing.
Powdered
Liquid
Solved or granular
Which two of the following are the advantages of inkjet 3D printing?
Good surface finish
Good accuracy
Very strong final product
Fast build speeds
The binding material used in inkjet 3D printing is in the ________ form.
Granular
Gaseous
Liquid
No binding material is used in inkjet 3D printing
Which of the following options is/are true about Stereolithography (SLA)?
SLA cannot produce multiple parts at the same time
SLA parts cannot be used to create molds
SLA is a slow process
SLA has poor mechanical properties
Which of the following is/are NOT (an) advantage(s) of laser melting?
It uses a powder bed that acts as an in-process support structure
Cooling time required by this process is less
No infiltration is required by this process
Parts produced using this process are stronger than those produced using Stereolithography or Digital Light Processing
Both b and c
What do power binding printers use to apply a rapidly-solidified binder to the powder bed in order to create now solid objects?
Laser beams
Ink-jet sprays
Both a and b
Which of the following types of material does the material jetting technology use?
Wax
Glass
Photopolymer
Foam
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.
II. Additive manufacturing can be used for wood and foam, but subtractive manufacturing cannot.
III. If larger quantities of a part are required, additive manufacturing is preferred over subtractive manufacturing
Only 1
Only II
Only III
Both 1 and II
Both II and III
Which of the following 3D printing technologies uses plaster as production material?
Digital Light Processing
Selective Laser Melting
Inkjet head 3D printing
Robocasting
Which of the following base materials does Laminated Object Manufacturing use?
Metal foil
Plaster
Photopolymer
Plastic film
In which of the following processes is a plastic filament melted and then deposited, one layer at a time, onto a heated extruder?
Fused Deposition Modelling
Laser Melting
Selective Deposition Lamination
Electron Beam Melting
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
Which of the following is used as a support material in inkjet 3D printing?
Modeling clay
Metal alloys
Plastic
Wax
3D printing Fiverr Test 2020