MAE 1351 EXAM 1 2025 QUESTIONS AND
ANSWERS
Descriptive geometry - ANS A 2D graphical construction technique used for geometric
analysis of 3D objects
Optimization - ANS Modification of shapes, sizes, and other variables to achieve the best
performance based on predefined criteria
Why are most cave drawings and hieroglyphics not considered to be engineering drawings? -
ANS Becuase they were mostly documentation of lifestyle, not instructions on how to build
something
In what ways did the design of military fortifications change after the discovery of gunpowder
and the invention of the cannon? - ANS Walls became thicker, and more geometrically
complex to deflect cannon fire
Why did engineering drawings need to become more precise during the industrial revolution? -
ANS reduced misinterpretation so products could be mass produced
What were the three traditional roles of engineering graphics? - ANS communication, record
keeping, and analysis
What are some of the new roles of engineering graphics created by computer graphics? -
ANS (visualization, analysis, function, and optimization) can produce 3D pictures that can be
observed from all sides, can be tested on the computer vs having to test actual models
1 Copyright ©2025 SIRJOEL ALL RIGHTS RESERVED
, What are some of the advantages and disadvantages of using mechanical drawing instruments,
as opposed to mathematical tools, for problem solving? - ANS Mechanical drawing
instruments were used to analyze problems without the need to do burdensome math and
enabled engineers to create any view of a geometric object from two existing views
In what ways can visualization skills be developed? - ANS by doing special visualization
exercises, by building and working with solid models, disassembling and reassembling devices,
and sketching
T/F The engineering design process follows the same steps as the scientific discovery process,
or scientific method - ANS false
T/F To create a revolved feature, the profile and the axis of revolution must be coplanar. -
ANS true
To create a solid of revolution, I must... - ANS select a plain line from the sketch to use as a
an axis, make an axis in the sketch using a construction line, use reference geometry to make an
axis
These are the fundamental types of sketch constraints: - ANS geometrical and dimensional
I have a distance in my sketch preceded by a "sigma" symbol. This means... - ANS it is a
dimension driven by a parametric formula
To create the "wedge" homework, this is the best choice of technique: - ANS well it
depends...
The following feature facilitates removal from a mold - ANS draft
2 Copyright ©2025 SIRJOEL ALL RIGHTS RESERVED
ANSWERS
Descriptive geometry - ANS A 2D graphical construction technique used for geometric
analysis of 3D objects
Optimization - ANS Modification of shapes, sizes, and other variables to achieve the best
performance based on predefined criteria
Why are most cave drawings and hieroglyphics not considered to be engineering drawings? -
ANS Becuase they were mostly documentation of lifestyle, not instructions on how to build
something
In what ways did the design of military fortifications change after the discovery of gunpowder
and the invention of the cannon? - ANS Walls became thicker, and more geometrically
complex to deflect cannon fire
Why did engineering drawings need to become more precise during the industrial revolution? -
ANS reduced misinterpretation so products could be mass produced
What were the three traditional roles of engineering graphics? - ANS communication, record
keeping, and analysis
What are some of the new roles of engineering graphics created by computer graphics? -
ANS (visualization, analysis, function, and optimization) can produce 3D pictures that can be
observed from all sides, can be tested on the computer vs having to test actual models
1 Copyright ©2025 SIRJOEL ALL RIGHTS RESERVED
, What are some of the advantages and disadvantages of using mechanical drawing instruments,
as opposed to mathematical tools, for problem solving? - ANS Mechanical drawing
instruments were used to analyze problems without the need to do burdensome math and
enabled engineers to create any view of a geometric object from two existing views
In what ways can visualization skills be developed? - ANS by doing special visualization
exercises, by building and working with solid models, disassembling and reassembling devices,
and sketching
T/F The engineering design process follows the same steps as the scientific discovery process,
or scientific method - ANS false
T/F To create a revolved feature, the profile and the axis of revolution must be coplanar. -
ANS true
To create a solid of revolution, I must... - ANS select a plain line from the sketch to use as a
an axis, make an axis in the sketch using a construction line, use reference geometry to make an
axis
These are the fundamental types of sketch constraints: - ANS geometrical and dimensional
I have a distance in my sketch preceded by a "sigma" symbol. This means... - ANS it is a
dimension driven by a parametric formula
To create the "wedge" homework, this is the best choice of technique: - ANS well it
depends...
The following feature facilitates removal from a mold - ANS draft
2 Copyright ©2025 SIRJOEL ALL RIGHTS RESERVED
