WorksheetsADDITIVE MANUFACTURING
Total questions: 134
Worksheet time: 2hrs 14mins
Name
Class
Date
1.
The process of additively building up a part_________ at a time.
a)
One layer
b)
Two layer
c)
Zero layer
d)
Subtractive
2.
Fabrication of objects through the deposition of a material using a ____________printer technology
a)
Tray
b)
Print head,Nozzle
c)
Support material
3.
3D printing translate a digital file into a ________object
a)
Liquid object
b)
Semi solid
c)
Solid Object
d)
ALL OF THE ABOVE
4.
Additive Manufacturing produces a component of ________Dimensional object
a)
2D
b)
CAD
c)
CAM
d)
3D
5.
In Order to 3D print a part, a CAD model must be converted into a _______________ format
a)
STL
b)
SEL
c)
SLA
d)
STI
6.
Traditional manufacturing techniques is_________type
a)
Subtractive
b)
Adding material
c)
Forming
d)
Rolling
7.
Additive manufacturing works by________ layers of material to form the final object.
a)
Removing
b)
Adding
c)
one layer
d)
multiple
8.
Formative manufacturing typically forms material into the desired shape via__________
a)
Energy
b)
Gas and liquid
c)
Heat and pressure
d)
Solid object
9.
CNC milling, turning (lathe) are all examples of ___________
Techniques
a)
Adding technique
b)
sheet metal
c)
multi layer
d)
subtractive Technique
10.
The most common method for producing a digital model is ____________________
a)
CAD
b)
CAM
c)
PROE
d)
CATIA
11.
STL stands for _________________
a)
Stereo Lithography (STL) file, Standard Triangle Language file
b)
Standard Tree Language file
c)
ALL OF THE ABOVE
12.
The slicer program takes the STL file and converts it into _____________ NC programming language
a)
N code
b)
M code
c)
G CODE
d)
s code
13.
STL uses ___________ to describe the surfaces of an object
a)
Square
b)
Rectangle
c)
Octagon
d)
Triangles
14.
Among all which is the Advantages of additive manufacturing
a)
Energy saving
b)
Production costs
c)
Post-processing
d)
slow process
15.
FDM printing makes use of thermoplastics in the form of filament used by number of ______spool
a)
1
b)
2
c)
4
d)
6
16.
FDM Stands for_________
a)
Fused deposition modelling
b)
Fusd demand modelling
c)
Fused deposition made
d)
Fused deposition product
17.
FFF Stands for _____________
a)
Fused fill fabrication
b)
Fused filament fabrication
c)
Fused filament work
d)
Fused filament fiber
18.
The most common material extrusion technology is_________
a)
FEM
b)
FHM
c)
FDM
d)
FIM
19.
____________of FDM parts occurs due to differential cooling
a)
Slow process
b)
long process
c)
Roping
d)
Warping
20.
parts are printed with an internal, low density structure known as _______________
a)
Infill
b)
Solid object
c)
Material
d)
Ink
21.
The most common forms of Vat Polymerization are____________
a)
PLA
b)
SLB
c)
SLA,DLP
22.
The build platform begins at __________________ of the resin
a)
Very Top
b)
Midle
c)
Bottom
d)
Center
23.
DLP Stands for ______________
a)
Direct low processing
b)
Direct light processing
c)
Direct beam processing
d)
Direct lense processing
24.
Vat Polymerization parts require ________________ structures
a)
Extra
b)
Support
c)
Unwanted
d)
semistructured
25.
Vat Polymerization printers are capable of printing fine detailed prints with feature sizes as small as__________________
a)
0.2mm
b)
0.4mm
c)
0.3mm
d)
0.5mm
26.
Binder jetting is the process of depositing a binding agent onto a ____________ bed to form a part,
a)
Powder
b)
liquid
c)
Solid Object
d)
Grains
27.
_______________________print heads apply a liquid bonding agent onto thin layers of powder
a)
Nozle
b)
Inkjet
c)
Support
d)
Jet
28.
Binder jetting is also used for the production of________________molds
a)
sand cast molds
b)
sand cast metals
c)
cavity
d)
ALL OF THE ABOVE
29.
Inkjet print heads are used to jet melted ____________________materials onto a build platform
a)
Wax
b)
Plastic
c)
Metal parts
d)
Solid
30.
SIZE OF BINDR DROPLETS IN BINDER JETTING IS ____________
a)
80 milimeter
b)
80 micron
c)
80 centimeter
d)
80 inch
31.
IN MATERIAL JETTING, DROPLETS OF PHOTOPOLYMER IS SOLIDIFIED BY_______
a)
AIR
b)
WATER
c)
BOTH A & B
d)
UV LIGHT
32.
WHICH TECHNOLOGY OFFER MULTI-MATERIAL PRINTING AS WELL AS FULL COLOR _______
a)
BINDER JETTING
b)
MATERIAL JETTING
c)
POLYJET
d)
VAT POLYMERISATION
33.
DIMESIONAL ACCURACY AND GOOD SURFACE FINISH IS OBTAINED IN WHICH 3D PRINT PROCESS
a)
FDM
b)
BINDER JETTING
c)
POLYJET
d)
MATERIAL JETTING
34.
WARPING AND SHRINKAGE ARE __________ IN MATERIAL JETTING
a)
UNCOMMON
b)
COMMON
c)
LESS
d)
HIGH
35.
DISADVANTAGE OF MATERIAL JETTING IS ________
a)
LESS ACCURACY
b)
GOOD SURFACE
c)
FRAGILE PARTS
d)
ROUGH SURFACE
36.
SHEET LAMINATION PROCESS INCLUDES ________ AND ______________
a)
ULTRASONIC ADDITIVE MANUFACTURING, LAMINATED OBJECT MANUFACTURING
b)
ULTRASONIC ADDITIVE MANUFACTURING, DIRECT LIGHT PROCESSING
c)
LAMINATED OBJECT MANUFACTURING, DIRECT LIGHT PROCESSING
d)
NONE
37.
WHICH 3D PRINT PROCESS REQUIRES ADDITIONAL CNC MACHINING FOR REMOVAL OF UNBOUND METAL
a)
POLYJET
b)
FDM
c)
METAL PRINTING
d)
SHEET LAMINATION
38.
LAMINATED OBJECT MANUFACTURING USES ___________ AS MATERIAL
a)
METAL
b)
PAPER
c)
RIBBER
d)
BOTH A & C
39.
ULTRASONIC ADDITIVE MANUFACTURING USES _________ AS MATERIAL
a)
SHEETS OF METAL
b)
RUBBER
c)
PAPER
d)
BOTH A & C
40.
IN ULTRASONIC ADDITIVE MANUFACTURING, MATERIAL ARE BOUND TOGETHER BY_______
a)
ADHESIVE
b)
ULTRASONIC WELDING
c)
WELDING
d)
FEVICOL
41.
IN LAMINATED OBJECT MANUFACTURING, MATERIAL ARE BOUND TOGETHER BY ______
a)
ADHESIVE
b)
ULTRASONIC WELDING
c)
WELDING
d)
FEVICOL
42.
MATERIAL USED IN ULTRASONIC ADDITIVE MANUFACTURING ARE__________
a)
ALUMINIUM
b)
COPPER
c)
TITANIUM
d)
ALL OF THE ABOVE
43.
WHICH 3D PRINT PROCESS USED FOR RAPID PROTOTYPING
a)
LOM
b)
SLA
c)
DLP
d)
POLYJET
44.
DISIMILAR METALS ARE JOINED BY WHICH 3D PRINTING PROCESS
a)
LOM
b)
UAM
c)
DLP
d)
POLYJET
45.
ADVANTAGES OF SHEET LAMINATION
a)
LOW COST
b)
SPEED
c)
EASE OF MATERIAL HANDLING
d)
ALL OF THE ABOVE
46.
Metal Powder Bed Fusion technologies produce _________________
a)
SOLID PART
b)
LIQUID PART
c)
Support
d)
PLA PART
47.
DMLS stands for ____________________
a)
Direct Metal Loss Sintering
b)
Direct Metal Laser Sintering
c)
Direct Make Laser Sintering
d)
Disk Metal Laser Sintering
48.
A thin layer of metal powder is selectively melted by a _____________________
a)
LIGHT BEAM
b)
3D
c)
LASER
d)
POWDER
49.
The DMLS/SLM process is used for the production of___________________________
a)
Jewellery
b)
Plastic
c)
Mould parts
d)
Press tool
50.
EBM STANDS FOR __________________
a)
ELECTRON BEAM METAL
b)
ELCTRON BEAM MELTING
c)
ELECTRICAL BEAM METAL
d)
ENERGY BEAM METAL
51.
Electron beam melting is similar to____________________
a)
Metal welding
b)
PLA
c)
Laser melting
d)
ALL OF THE ABOVE
52.
This enables the _______________________________ away from where the powder is melted.
a)
ENERGY TRANSFER
b)
METAL TRANSFER
c)
LAYER BY LAYER
d)
HEAT TRANSFER
53.
It reduces thermal stresses and prevents_______________
a)
Wrapping
b)
Support
c)
Metal
d)
ABS
54.
Can manufacture parts in standard metals with___________________
a)
Low Density
b)
High Density
c)
High volume
d)
low volume
55.
Powder bed fusion Parts in standard metals with high density (above 99%) and good ___________________
a)
Mechanical properties
b)
Chemical
c)
Thermal Properties
d)
ALL OF THE ABOVE
56.
EXPAND THE DED_____________
a)
DIRECT ENERGY DEPOSITION
b)
DIE ENERGY DEPOSITION
c)
DIE EMBEDED DEPOSITION
d)
DIRECT EMBEDED SYSTEM
57.
WHICH PROCESS IS CAPABLE OF PRODUCING FULLY DENSE PARTS WITH HIGHLY MICROSTRUCTURAL FEATHERS
a)
LOM
b)
UAM
c)
DED
d)
SLA
58.
LIMITATION OF DED PROCESS __________
a)
POOR RESOLUTION
b)
SURFACE FINISH
c)
BOTH A & B
d)
ONLY B
59.
ACCURACY OF DIRECT ENERGY DEPOSITION IS ________
a)
EUAL TO 0.25mm
b)
BETTER THAN 0.25mm
c)
MORE THAN 0.25mm
d)
NONE
60.
DED PROCESS USES __________ TO MELT THE FEEDSTOCK MATERIAL
a)
LASER
b)
ELCTRON BEAM
c)
ONLY A
d)
EITHER A OR B
61.
FDM Technology High Accuracy up to __________________
a)
+/- .089 mm
b)
-0.9
c)
-0.2
d)
0.002
62.
DDM Stands for ________________
a)
Delay Digital Manufacturing
b)
Direct Digital Manufacturing
c)
Direct Digital Machine
d)
ALL OF THE ABOVE
63.
The Powder bed technology manufactures parts in standard metals with high________________
a)
Density below 99%
b)
Density 89%
c)
Density (above 99%)
d)
Density 70%
64.
Heated chamber allows us to print material like ___________________
a)
PLS
b)
PLA
c)
ABC
d)
ABS
65.
_______________________print speed ensures overall lower printing costs.
a)
High Travel speed
b)
Low Travel sped
c)
Medium Travel speed
d)
ALL OF THE ABOVE
66.
Industrial 3d printers should have ____________calibration procedure
a)
Manual
b)
Auto
c)
Semi auto
d)
BOTH A & C
67.
FDM technology is used in both ___________
a)
Less cost
b)
Medium cost
c)
low-cost desktop 3D printers
d)
High cost desktop 3D printers
68.
Industrial machines can produce parts from the same standard ______________
a)
Thermoset
b)
Thermoplastics
69.
In FDM the dimenssion tolerenace is
a)
±0.5mm
b)
±0.6mm
c)
±0.7mm
d)
±0.1mm
70.
In FDM the support material for over hangs will be
a)
less than 45 degree
b)
More than 45 degree
c)
less than or equal to 45 degree
d)
More than or equal to 45 degree
71.
In Binder jetting the dimenssion tolerenace is
a)
±0.2mm
b)
±0.3mm
c)
±0.1mm
d)
±0.5mm
72.
In Powder bed fusion the dimenssion tolerenace is
a)
±0.2mm
b)
±0.3mm
c)
±0.5mm
d)
±0.6mm
73.
In powder bed fusion the shrinkage range
a)
3%-3.5%
b)
4%-3.5%
c)
5%-3.5%
d)
6%-3.5%
74.
Common plastics can be used in 3D printing
a)
ABS&PC
b)
PVC
c)
ABB
d)
None of these
75.
Base material used in Addtive manufacturning are
a)
Polyphenylene sulphide
b)
Carbon fibre
c)
Fiberglass
d)
Epoxy resin
76.
Reinforcements material used in Addtive manufacturning are
a)
Acrylonitrile butadiene styrene
b)
Kevlar
c)
Polyether ether ketone
d)
Nylon 12
77.
Ceramic powders can be printed on material used in Addtive manufacturning are
a)
Silica/Glass
b)
Polyphenylene sulphide
c)
Carbon fibre
d)
Fiberglass
78.
A mixture of two thermoplastics is called as
a)
Blend
b)
composite
c)
composite+Blend
d)
None of these
79.
The common brand name for the ABS materials are
a)
esun
b)
polymaker
c)
ultem
d)
None of these
80.
The standard material for Vat polymerization are
a)
Formlabs
b)
esun
c)
polymaker
d)
ultem
81.
The standard material for Material jetting are
a)
Vero
b)
Formlabs
c)
esun
d)
FTX Gray
82.
Iin Material jetting ABS material has the characteristics
a)
High temerature resistance
b)
Low temerature resistance
c)
No temerature resistance
d)
None of these
83.
The sillica sand is used in binder jetting
a)
Excellent for sand casting
b)
High temerature resistance
c)
Very hardness
d)
Brittel
84.
ASTM stands for
a)
American Social for Testing and Materials
b)
American Society for Testing and Materials
c)
American Society for Testing and Management
d)
None of these
85.
The Tensile Strength is exressed in terms of
a)
Pascal
b)
MM
c)
M
d)
Inch
86.
Elongation to Break
a)
As a ratio (%) between length at break to initial length
b)
As a ratio (%) between initial length at break to length
c)
As a ratio (%) between initial length at break to orginal length
d)
None of these
87.
Toughness
a)
Energy which can absorb before it breaks
b)
Energy which can't absorb before it breaks
c)
Energy which can't absorb after it breaks
d)
None of these
88.
FLEXURAL
a)
Flexural strength, determines the bending properties of a material
b)
As a ratio (%) between initial length at break to length
c)
As a ratio (%) between length at break to initial length
d)
Energy which can absorb before it breaks
89.
IZOD IMPACT
a)
Measures material’s resistance to impact Specimen
b)
Measures material’s toughnees
c)
Measures material’s hardness
d)
None of these
90.
Lower coefficients of thermal expansion (CTE) are better for tooling applications
a)
yes
b)
no
c)
both A&B
d)
No change
91.
Measures the hardness of the materials of Plastics
a)
SHORE HARDNESS
b)
tensile strength
c)
comressive strength
d)
None of these
92.
In IZOD IMPACT resistant the material expressed in
a)
J/m
b)
m/j
c)
m/m
d)
i/m
93.
sacle used to measure SHORE HARDNESS
a)
SCALE A, D
b)
SCALE D
c)
SCALE A
d)
SCALE C
94.
Full form of STL File
a)
STereoLithography
b)
STereoLighography
c)
STereooLighography
d)
None of these
95.
The surface geometry STL File is defined as
a)
Triangle
b)
Rectangle
c)
Square
d)
circle
96.
STL is a
a)
MESH standard file
b)
NON MESH standard file
c)
Linear mesh file
d)
None of these
97.
The common CAM software used are
tool s
a)
GrabCAD Print
b)
Fusion 360
c)
CAD
d)
Solid works
98.
High resolution meshes contain
a)
higher density of smaller polygons
b)
Lower density of smaller polygons
c)
higher density of Larger polygons
d)
higher density of higher polygons
99.
In FDM wall thinckness
a)
below 0.8mm
b)
above 0.8mm
c)
below 0.7mm
d)
above 0.7mm
100.
In FDM hole size should be minimum
a)
2.0mm
b)
3.0mm
c)
4.0mm
d)
0.1mm
101.
In FDM Clerance should be minimum
a)
0.5 mm
b)
0.1mm
c)
0.6mm
d)
0.7mm
102.
In SLA embossed should be
a)
0.1 mm
b)
0.2 mm
c)
0.3 mm
d)
0.4mm
103.
In Material jetting pin diameter should be minimum
a)
0.5 mm
b)
0.1 mm
c)
0.2 mm
d)
0.53mm
104.
format used by digital manufacturing software to generate information
needed to produce 3D models.
a)
STL
b)
SLT
c)
TLS
d)
LST
105.
The STL format approximates the surfaces of a solid, surface or scanned model with
a)
Triangle
b)
Square
c)
Circle
d)
line
106.
When creating a STL file, the goal is to achieve a
a)
File size
b)
smooth curved geometries
c)
File size &smooth curved geometries
d)
None of these
107.
When can we see spots on curved surfaces.
a)
Too coarse
b)
Lees coarse
c)
No coarse
d)
coarse
108.
The software which coverts from cad to AM
a)
Grabcad print
b)
soild work
c)
Autocad
d)
Catia
109.
In Tray setting
a)
Set slice height
b)
set height
c)
Hit of slice
d)
slice
110.
Slicing view
a)
Hit to slice current tray
b)
Mannual Packing
c)
slice current tray
d)
current tray
111.
Arrange tray
a)
Automatic packing
b)
Packing
c)
Mannual Packing
d)
None of these
112.
FDM infill Style
a)
Solid
b)
Hallow
c)
Circle
d)
Line
113.
Time taken to complete the solid modle
a)
More
b)
Less
c)
Both A& B
d)
None of these
114.
Material utilized for making high density compenent
a)
Less material
b)
More material
c)
Equal material
d)
None of these
115.
Material utilized for making low density compenent
a)
Very less material
b)
More material
c)
less material
d)
None of these
116.
For Smooth surfaces Techniques
a)
hand sanding
b)
sanding
c)
Polishing
d)
None of these
117.
For Metallic look Techniques
a)
electroplating
b)
Polishing
c)
sanding
d)
None of these
118.
Additional Machines used FOR POST-PROCESSING
a)
Water Jet.
Sand blaster
b)
Filling Voids
Open Seams
c)
Brown Marks
Burnt material
d)
Glues.
Coating materials
119.
Hand Tools used FOR POST-PROCESSING
a)
Glues.
Coating materials.
Spray
b)
Traditional wood, metal, surgery tools.
Filling Voids
c)
Brown Marks
Burnt material
d)
Filling Voids
Open Seams
120.
Tools used for support removal basis
a)
ULTEM and PPSF
b)
Screw driver
c)
Plucker
d)
None of these
121.
Filling Voids
a)
Open Seams
Around holes
b)
Burnt material deposited in part by tip
c)
Embedded support
d)
Edges, Corners, Seams
122.
Wisps of Material
a)
Hair-like appearance
b)
Use Sandpaper
c)
File
d)
None of these
123.
Repairing Open Seams
a)
Fill void with super glue
b)
Dig mark out of part
c)
Make paste with solvent and material
d)
None of these
124.
GLUING
a)
when it is more practical to print individual parts and than glue together
b)
Wear heat resistant gloves and safety glasses
c)
Use pliers and picks to remove supports
d)
None of these
125.
PLATING
a)
Increased mechanical properties
b)
FORTUS
c)
Seal Surfaces
d)
None of these
126.
MASS FINISHING
a)
Hands-free surface smoothing and polishing
b)
Two part epoxy
c)
Penetrates the surface of porous/semi porous parts
d)
Oven needed to pre-heat and cure the epoxy
127.
MASS FINISHING is also called as
a)
CENTRIFUGAL BARREL
b)
PLATING PROCESS
c)
SEALING
d)
PAINTING
128.
In Ceramic material used for MASS FINISHING
a)
PC
b)
ABS
c)
AAB
d)
PP
129.
IN MASS FINISHING FILE PREPARATION Compensate for material removal
a)
0.04 – 0.08 mm
b)
0.05 – 0.08 mm
c)
0.04 – 0.09 mm
d)
0.06 – 0.08 mm
130.
Mass-finishing removes equal amount from all surfaces
a)
Pre-sanding
b)
Painting
c)
SEALING
d)
Plating
131.
How many chambers are their in SMOOTHING STATION
a)
2
b)
3
c)
4
d)
5
132.
in SMOOTHING STATION Retains part accuracy
a)
.023mm
b)
.013mm
c)
.024mm
d)
.026mm
133.
in SMOOTHING STATION Paint ready parts
Allow
a)
12-18 hours fully cure
b)
13-18 hours fully cure
c)
12-14 hours fully cure
d)
12-15 hours fully cure
134.
In SMOOTHING STATION Master pattern prep by
a)
silicone molding
b)
RTV molding
c)
Paint ready parts
d)
Electroplating
100 %
