WorksheetsAdditive Manufacturing Quiz-1
Total questions: 20
Worksheet time: 10mins
In the context of 3D printing, what does FDM stand for?
Fused Deposition Modeling
Fused Digital Manufacturing
Flexible Deposition Modeling
Fast Design Manufacturing
Which additive manufacturing process uses a light source to cure a photopolymer resin in a vat selectively?
Material Extrusion
Vat Polymerization
Powder Fusion
Directed Energy Deposition
Which file format is commonly used to convert a CAD file into a format that can be understood by an FDM 3D printer?
.JPEG
.STL
.OBJ
What is one common post-processing step required for parts printed using the SLS process?
Curing under UV light
Sintering in a furnace
Removal of excess powder
Application of a liquid binder
In Selective Laser Sintering (SLS), what energy source is used to fuse powdered material?
Ultraviolet (UV) light
Infrared (IR) light
Laser beam
Electron beam
In Powder Fusion 3D printing processes, what is the role of the energy source?
It selectively melts or sinters the material needed for each layer.
It heats the bed of powder to a consistent temperature.
It moves the print head over the powder surface.
It spreads a thin layer of powder across a build surface.
What is NOT the preprocessing step?
Create CAD model
Create G code
Part orientation on the build platform
Print the part
What is the purpose of slicing in the 3D printing process?
To create support structures
To generate G-code instructions for the 3D printer
To check the quality of the STL file
To divide the 3D model into vertical layers
Which of the following is a common post-processing step for Fused Filament Fabrication (FFF) 3D printed parts?
Heat treatment to strengthen the part
Wire EDM to detach the part from the build platform
Removing supports and cleaning
Applying a special surface treatment for residual stress management
In the context of 3D printing, what does CAM stand for?
Computer-Aided Manufacturing
Computer-Aided Modeling
Computer-Aided Movement
Computer-Aided Material
What is the primary purpose of reverse engineering in 3D printing?
To create a precise and accurate CAD model from an existing physical object or part
To improve the quality of 3D printed objects
To make the 3D printing process faster
To reduce the cost of 3D printing
Which file format is specifically used for 3D scanned objects?
OBJ
STL
PLY
IGES
In FDM, the raw material used is in the form of
Liquid resin
Powder
Wire
Gel
Which material would be best suited for an application requiring food safety?
NYLON
ABS
PLA
PETG
What is the primary technique used in Stereo Lithography (SLA) 3D printing?
Material Jetting
Vat Polymerization
Binder Jetting
Direct Energy Deposition
In the Digital Light Processing (DLP) 3D printing process, what is used to selectively cure liquid photopolymer resin layer by layer?
UV light
Infrared light
Laser beams
Visible light
Choose the correct sequence to generate prototype.
CAD solid model - STL file - Gcode file- RP prototype
CAD solid model - Gcode file- RP prototype - STL file
STL file - Gcode file - CAD solid model - RP prototype
Gcode file - STL file - CAD solid model - RP prototype
In powder-based additive manufacturing processes, what is the primary role of lasers/electron beams?
To spread the powdered material
To sinter the powdered material
To cool the melted material
To apply pressure to the powder bed
Which of the following is a common energy source used in Powder Bed Fusion (PBF) processes?
Microwave
Electron/Laser beam
Hydraulic pressure
Magnetic field
What type of laser is used in selective laser sintering (SLS) technology?
Nitrogen laser
Carbon dioxide laser
Fiber laser
Diode laser
