Explain computer-based three-dimensional modeling.
What will be an ideal response?
Computer-based three-dimensional (3-D) modeling as an engineering design tool began in the 1980s. CAD was a great convenience, but it produced only drawings. In this sense, CAD was just a very accurate instrument for making drawings. A drawing's representation of an object in three dimensions had to be visualized by the person reading the drawing. It was the same for any fit or function of an assembly-the person reading the drawing had to visualize it. One problem was that not all readers visualized a drawing the same way. Three-dimensional modeling addressed those problems directly. Unlike a 2-D CAD drawing, which was a collection of 2-D objects used to represent specified views of an object, computer-based solid models had 3-D properties.
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____________________ soils contain levels of sodium that are high enough to cause plant injury
Fill in the blank(s) with correct word
Determine the number of 4-foot-wide by 8-foot-high sheets of drywall needed for the tenant finish in Figure 16.16. The walls are 8 feet high. The exterior walls need drywall on the interior side only. The interior walls need drywall on both sides. Add 5 percent waste.
What will be an ideal response?
Vertical mount fan motors require ________ to handle the force of the shaft pushing against the end bells of the motor
A) flat washers B) bronze bearings C) thrust washers D) thrust bearings
How long will it take to complete this instruction? MOV A, Rn
A) 1 ?s B) 2.5 ?s C) 10 ?s D) 5 ?s