Engineering > EXAM > MAE 1351 Exam 1; Questions & Answers; Latest Updated (All)

MAE 1351 Exam 1; Questions & Answers; Latest Updated

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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 b... est performance based on predefined criteria Why are most cave drawings and hieroglyphics not considered to be engineering drawings? (Ans- Because 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 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 I need to add a clearance hole to my part for fastening. Which is better from a design intent perspective? (Ans- hole made with a hole wizard A blend (loft) requires at least these many profile sketches: (Ans- two COTS stands for: (Ans- Commercial Off The Shelf T/F Aluminum is a common prototyping material (Ans- true T/F Hexagonal bar stock is a commonly available shape for metals (Ans- true [Show More]

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