# Prototypes And Modeling: Question Preview (ID: 11812)

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**Conceptual, physical and mathematical models are used to:**

a) define criteria for a solution

b) determine trade-offs

c) train designers

d) evaluate design solutions

**Sketching is a tool used in the creation of what type of models?**

a) conceptual

b) physical

c) mathematical

d) psychological

**Isometric, oblique, perspective and orthographic are different types of:**

a) mathematical processes

b) modeling techniques

c) technical sketches/drawings

d) electronic tests

**Mock ups and prototypes are different types of:**

a) psychological models

b) conceptual models

c) physical models

d) mathematical models

**Mathematical modeling aids in technological design by simulating how:**

a) a solution should be designed

b) a proposed system might behave

c) physical models should be built

d) designs should be used

**Mathematical models allow engineers and designers to express ideas:**

a) physically

b) conceptually

c) randomly

d) precisely

**A characteristic of a 3D model that a 2D model does not have is:**

a) volume

b) surface area

c) height

d) width

**The mathematical formula for the area of a triangle is:**

a) A = length x width

b) A = base x ½ (height)

c) A = Π x radius2

d) A = length x width x height

**The mathematical formula for the volume of a pyramid is:**

a) V = length x width x height

b) V = Cube of Diameter x .5236

c) V = Area of Base x 1/3 Perpendicular Height

d) V = Square of Diameter x Length x .7854

**____________________ drawings are three dimensional representations of an object where the object lines converge on one or more points.**

a) Isometric

b) Oblique

c) Perspective

d) Orthographic

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