Maryland Additive Manufacturing
Technician Certification Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. In additive manufacturing, which statement best describes the
fundamental principle that distinguishes additive processes from
traditional subtractive manufacturing methods?
A. Material is removed from a solid workpiece until the desired shape is
achieved
B. Material is formed through casting and forging operations only
C. Material is added layer by layer to create a three-dimensional object from
digital data
D. Material is shaped exclusively through machining centers
C. Material is added layer by layer to create a three-dimensional object
from digital data
Rationale: Additive manufacturing builds parts by depositing or solidifying
material layer upon layer from a digital model, whereas subtractive
manufacturing removes material from a larger workpiece.
, 2. Which file format is most commonly used to transfer three-
dimensional models from CAD software to many additive
manufacturing systems?
A. PDF
B. STL
C. DOCX
D. JPEG
B. STL
Rationale: STL files represent the surface geometry of a three-dimensional
object using tessellated triangles and are widely accepted by additive
manufacturing equipment and slicing software.
3. A technician preparing a print job notices missing surfaces and gaps in
the digital model. What is the most appropriate action before
manufacturing begins?
A. Increase print speed
B. Ignore the issue and proceed
C. Repair the model to create a watertight geometry
D. Change material color
C. Repair the model to create a watertight geometry
Rationale: Defective geometry can lead to print failures and inaccurate
parts. Repairing the model ensures that slicing software can properly
generate toolpaths.
4. Which additive manufacturing technology creates parts by extruding
thermoplastic material through a heated nozzle?
A. Binder Jetting
B. Material Jetting
C. Fused Deposition Modeling (FDM)
D. Sheet Lamination
,C. Fused Deposition Modeling (FDM)
Rationale: FDM builds components by melting and depositing
thermoplastic filament through a nozzle in successive layers.
5. What is the primary purpose of support structures in many additive
manufacturing processes?
A. Increase machine noise
B. Reduce software requirements
C. Support overhanging features and improve build stability
D. Eliminate the need for post-processing
C. Support overhanging features and improve build stability
Rationale: Support structures help prevent distortion, collapse, or
movement of unsupported geometry during the build process.
6. In additive manufacturing safety, why should technicians avoid
inhaling fine polymer or metal powders?
A. Powders reduce machine efficiency only
B. Powders may present respiratory and health hazards
C. Powders always improve air quality
D. Powders eliminate static electricity
B. Powders may present respiratory and health hazards
Rationale: Fine powders can become airborne and may create respiratory,
contamination, or occupational health risks if proper controls are not
followed.
7. Which technology selectively cures liquid photopolymer resin using
ultraviolet light?
A. Vat Photopolymerization
B. Sheet Lamination
, C. Directed Energy Deposition
D. Material Extrusion with filament only
A. Vat Photopolymerization
Rationale: Vat photopolymerization uses light energy to solidify liquid
resin into precise layers within a resin vat.
8. A major advantage of additive manufacturing for prototype
development is:
A. Unlimited production speed
B. Elimination of design requirements
C. Rapid production of complex geometries without dedicated tooling
D. Guaranteed lower costs for every application
C. Rapid production of complex geometries without dedicated tooling
Rationale: Additive manufacturing enables fast iteration and fabrication of
complex prototypes without the need for expensive molds or fixtures.
9. Which term refers to the process of converting a 3D model into
machine-readable layers and toolpaths?
A. Annealing
B. Slicing
C. Extrusion
D. Forging
B. Slicing
Rationale: Slicing software divides a digital model into layers and
generates instructions for the additive manufacturing machine.
10. What is a key benefit of additive manufacturing in lightweight
component design?
Technician Certification Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. In additive manufacturing, which statement best describes the
fundamental principle that distinguishes additive processes from
traditional subtractive manufacturing methods?
A. Material is removed from a solid workpiece until the desired shape is
achieved
B. Material is formed through casting and forging operations only
C. Material is added layer by layer to create a three-dimensional object from
digital data
D. Material is shaped exclusively through machining centers
C. Material is added layer by layer to create a three-dimensional object
from digital data
Rationale: Additive manufacturing builds parts by depositing or solidifying
material layer upon layer from a digital model, whereas subtractive
manufacturing removes material from a larger workpiece.
, 2. Which file format is most commonly used to transfer three-
dimensional models from CAD software to many additive
manufacturing systems?
A. PDF
B. STL
C. DOCX
D. JPEG
B. STL
Rationale: STL files represent the surface geometry of a three-dimensional
object using tessellated triangles and are widely accepted by additive
manufacturing equipment and slicing software.
3. A technician preparing a print job notices missing surfaces and gaps in
the digital model. What is the most appropriate action before
manufacturing begins?
A. Increase print speed
B. Ignore the issue and proceed
C. Repair the model to create a watertight geometry
D. Change material color
C. Repair the model to create a watertight geometry
Rationale: Defective geometry can lead to print failures and inaccurate
parts. Repairing the model ensures that slicing software can properly
generate toolpaths.
4. Which additive manufacturing technology creates parts by extruding
thermoplastic material through a heated nozzle?
A. Binder Jetting
B. Material Jetting
C. Fused Deposition Modeling (FDM)
D. Sheet Lamination
,C. Fused Deposition Modeling (FDM)
Rationale: FDM builds components by melting and depositing
thermoplastic filament through a nozzle in successive layers.
5. What is the primary purpose of support structures in many additive
manufacturing processes?
A. Increase machine noise
B. Reduce software requirements
C. Support overhanging features and improve build stability
D. Eliminate the need for post-processing
C. Support overhanging features and improve build stability
Rationale: Support structures help prevent distortion, collapse, or
movement of unsupported geometry during the build process.
6. In additive manufacturing safety, why should technicians avoid
inhaling fine polymer or metal powders?
A. Powders reduce machine efficiency only
B. Powders may present respiratory and health hazards
C. Powders always improve air quality
D. Powders eliminate static electricity
B. Powders may present respiratory and health hazards
Rationale: Fine powders can become airborne and may create respiratory,
contamination, or occupational health risks if proper controls are not
followed.
7. Which technology selectively cures liquid photopolymer resin using
ultraviolet light?
A. Vat Photopolymerization
B. Sheet Lamination
, C. Directed Energy Deposition
D. Material Extrusion with filament only
A. Vat Photopolymerization
Rationale: Vat photopolymerization uses light energy to solidify liquid
resin into precise layers within a resin vat.
8. A major advantage of additive manufacturing for prototype
development is:
A. Unlimited production speed
B. Elimination of design requirements
C. Rapid production of complex geometries without dedicated tooling
D. Guaranteed lower costs for every application
C. Rapid production of complex geometries without dedicated tooling
Rationale: Additive manufacturing enables fast iteration and fabrication of
complex prototypes without the need for expensive molds or fixtures.
9. Which term refers to the process of converting a 3D model into
machine-readable layers and toolpaths?
A. Annealing
B. Slicing
C. Extrusion
D. Forging
B. Slicing
Rationale: Slicing software divides a digital model into layers and
generates instructions for the additive manufacturing machine.
10. What is a key benefit of additive manufacturing in lightweight
component design?
