MECH502 EXAM LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
Laser melting is a type of which of the following additive processes? -
ANSWERS-Powder Bed Fusion
Which additive process involves the use of light to cure/harden a liquid
polymer? - ANSWERS-Photopolymerization
Considering the process parameters controlling material flow in melt
extrusion-based systems, if you want to minimize the
attachment/adhesion of support material at the interface regions
(between model and support material), assuming primary support
material, the best approach would be: - ANSWERS-Make print/scan
speed faster when printing the interface regions than when printing
anything else, all other parameters stay the same
Your boss emails you the following picture and asks you how this object
was made using additive manufacturing. The part is made of a ceramic
slurry. Which AM process was most likely used to make this object?
(see small scaffold image on desktop) - ANSWERS-Direct-write
END OF
PAGE
1
, MECH502 EXAM LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
True or False: Hot iso-static pressing (HIP) is a method for densifying
metal parts created with powder-based fusion processes. - ANSWERS-
True
In powder-bed fusion, a "Melt Flow Index" is used to help determine... -
ANSWERS-If powder is reusable
The slope of a photopolymer's working curve represents... - ANSWERS-
The distance a given irradiance will decrease by an amount equal to the
half-width of the gaussian, as it penetrates a given photopolymer
Your boss emails you the following picture and asks you how it was
made using additive manufacturing. He is amazed that the object is 10
µm long and 7 µm high, made of urethane acrylate. What is most likely
the AM process used to make this part? (see 2 photon bull image on
desktop) - ANSWERS-Two-photon photopolymerization
The terms "precision" and "resolution" are used interchangeably to refer
to: - ANSWERS-The smallest feature that a particular 3D printer can
print, independent of any particular material.
END OF
PAGE
2
, MECH502 EXAM LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
Which set of characteristics provides the best list of the things to
consider when deciding which additive process to use to make a
particular part? - ANSWERS-Purpose of part (e.g. functional
requirements), material requirements, size of part
Which set of metrics lists two of the most important considerations when
deciding to make a product using additive manufacturing, or if
subtractive or formative manufacturing may be a better choice? -
ANSWERS-Cost per complexity, Cost per quantity
True or False: Bioprinting usually uses a jetting process with a very fine
spray of material. - ANSWERS-False
In the context of 3D digital modeling, what is a "manifold" model? -
ANSWERS-A model that is completely closed between the inside of the
model and the outside. If it were a physical object, it could hold water.
END OF
PAGE
3
, MECH502 EXAM LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
The term "Dynamic precision" refers to... - ANSWERS-A measure of
the smallest feature a particular printer can create with its most accurate
material, all other factors being held constant
The name of the additive manufacturing process in which a liquid
bonding agent is selectively deposited to join powder material is: -
ANSWERS-Binder jetting
Which of the following terms is used to characterize the difference
between the dimensions of an as-printed part and the dimensions of a
digital, as-designed (CAD) part? - ANSWERS-accuracy
Your colleague asks you which AM process was most likely used to
make this object. It has a rough, grainy surface that appears to have been
post-processed with a coating that gives it the shine you see. What do
you tell her? (see heart model image on desktop) - ANSWERS-Binder
jetting
END OF
PAGE
4
QUESTIONS AND
ANSWERS 2026 - 2027
Laser melting is a type of which of the following additive processes? -
ANSWERS-Powder Bed Fusion
Which additive process involves the use of light to cure/harden a liquid
polymer? - ANSWERS-Photopolymerization
Considering the process parameters controlling material flow in melt
extrusion-based systems, if you want to minimize the
attachment/adhesion of support material at the interface regions
(between model and support material), assuming primary support
material, the best approach would be: - ANSWERS-Make print/scan
speed faster when printing the interface regions than when printing
anything else, all other parameters stay the same
Your boss emails you the following picture and asks you how this object
was made using additive manufacturing. The part is made of a ceramic
slurry. Which AM process was most likely used to make this object?
(see small scaffold image on desktop) - ANSWERS-Direct-write
END OF
PAGE
1
, MECH502 EXAM LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
True or False: Hot iso-static pressing (HIP) is a method for densifying
metal parts created with powder-based fusion processes. - ANSWERS-
True
In powder-bed fusion, a "Melt Flow Index" is used to help determine... -
ANSWERS-If powder is reusable
The slope of a photopolymer's working curve represents... - ANSWERS-
The distance a given irradiance will decrease by an amount equal to the
half-width of the gaussian, as it penetrates a given photopolymer
Your boss emails you the following picture and asks you how it was
made using additive manufacturing. He is amazed that the object is 10
µm long and 7 µm high, made of urethane acrylate. What is most likely
the AM process used to make this part? (see 2 photon bull image on
desktop) - ANSWERS-Two-photon photopolymerization
The terms "precision" and "resolution" are used interchangeably to refer
to: - ANSWERS-The smallest feature that a particular 3D printer can
print, independent of any particular material.
END OF
PAGE
2
, MECH502 EXAM LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
Which set of characteristics provides the best list of the things to
consider when deciding which additive process to use to make a
particular part? - ANSWERS-Purpose of part (e.g. functional
requirements), material requirements, size of part
Which set of metrics lists two of the most important considerations when
deciding to make a product using additive manufacturing, or if
subtractive or formative manufacturing may be a better choice? -
ANSWERS-Cost per complexity, Cost per quantity
True or False: Bioprinting usually uses a jetting process with a very fine
spray of material. - ANSWERS-False
In the context of 3D digital modeling, what is a "manifold" model? -
ANSWERS-A model that is completely closed between the inside of the
model and the outside. If it were a physical object, it could hold water.
END OF
PAGE
3
, MECH502 EXAM LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
The term "Dynamic precision" refers to... - ANSWERS-A measure of
the smallest feature a particular printer can create with its most accurate
material, all other factors being held constant
The name of the additive manufacturing process in which a liquid
bonding agent is selectively deposited to join powder material is: -
ANSWERS-Binder jetting
Which of the following terms is used to characterize the difference
between the dimensions of an as-printed part and the dimensions of a
digital, as-designed (CAD) part? - ANSWERS-accuracy
Your colleague asks you which AM process was most likely used to
make this object. It has a rough, grainy surface that appears to have been
post-processed with a coating that gives it the shine you see. What do
you tell her? (see heart model image on desktop) - ANSWERS-Binder
jetting
END OF
PAGE
4
