2026 QUESTIONS WITH CORRECT
ANSWERS GRADED A+
◍ Additive manufacturing uses much less material than many other traditional
"subtractive" manufacturing processes.True or False.
Answer: True
◍ Additive Manufacturing.
Answer: The process of joining materials to create an object from a 3D
model, usually adding layer over layer
◍ Which of the following is typically the cheapest type of 3D printer to
purchase?
A. Powder-based
B. SLA
C. FDM
D. None of these are correct.
Answer: C. FDM
◍ What 3D areas is technology for 3D printing advancing?.
Answer: Printers and printing methods, design software, and materials
◍ What is additive manufacturing sometimes known as?.
Answer: rapid prototyping
◍ SLA printing uses a plastic strand that's pushed through a heated nozzle in a
specific pattern, producing one layer at a time.True or False.
Answer: False
◍ FFF or FDM.
Answer: Fused Filament Fabrication or Fused Deposition Method
,◍ Which of the following is typically the most expensive type of 3D printer to
purchase?
A. Powder-based
B. SLA
C. FDM
D. None of these are correct.
Answer: A. Powder-based
◍ What is FFF technology used for.
Answer: Desktop 3D printing
◍ 3D printing technology is expanding and is now able to print metal
parts.True or False.
Answer: True
◍ What is the purpose of a slicer.
Answer: Takes a 3D model and translates it into individual layers
◍ What is an STL file?.
Answer: Stereo lithography file format, commonly used in 3D printing
◍ What is SLA.
Answer: a form of 3D printing in which a computer-controlled low power
highly focused ultraviolet laser is used to create layers from a liquid
polymer that hardens on contact.
◍ What does "FDM" stand for?
A. Forged Direct Modeling
B. Fused Deposition Modeling
C. Finite Discrete Modeling
D. Focused Disintegrated Modeling.
Answer: B. Fused Deposition Modeling
◍ List some advantages of FFF Manufacturing.
Answer: Lower Cost, Lowers barriers to traditional subtractive
manufacturing, reduce part count in an assembly, numerous thermoplastic
, filament types and colors, remote monitoring ability, print multiple
filaments, customize percent infill, uses only the material amount required,
no post curing process, faster development cycle, quicker customer
feedback, quicker produce customization and configuration, open source
filament, parallel verticals, open source slicing engines
◍ List some advantages of FFF manufacturing.
Answer: Slow build rates, may require post-processing, poor mechanical
properties, calibration required, print time, requires a CAD model
◍ After printing something using an SLA 3D desktop printer what should you
wash the print in?.
Answer: Isopropyl Alcohol(IPA)
◍ What does "SLA" stand for?
A. Sintered Laser Amplification
B. Stereo Lighting Amplification
C. Sinterlithography
D. Stereolithography.
Answer: D. Stereolithography
◍ What are a few advantages of SLA manufacturing.
Answer: stronger final parts, parts are watertight and fully dense, high
resolution
◍ Which type of printer can print multiple materials simultaneously?
A. FDM Printers
B. SLA Printers
C. Both of these printer types
D. Neither of these printer types.
Answer: A. FDM Printers
◍ What type of printer typically uses an enclosed build area?
A. FDM Printers
B. SLA Printers
C. Both of these printer types