Unit 4

Question 1

annotate

Answer 1

To add explanatory notes to a drawing.

Question 2

assembly

Answer 2

A group of machined or handmade parts that fit together to form a self-contained unit.

Question 3

assembly drawing

Answer 3

A drawing that shows parts of an item when assembled.

Question 4

cartesian coordinate system

Answer 4

A rectangular coordinate system created by three mutually perpendicular coordinate axes, commonly labeled X, Y, and Z.

Question 5

component

Answer 5

A part or element of a larger whole.

Question 6

CAD

Answer 6

1. When used in the context of design: the use of a computer to assist in the process of designing a part, circuit, building, etc. 2. When used in the context of drafting: the use of a computer to assist in the process of creating, storing, retrieving, modifying, plotting, and communicating a technical drawing.

Question 7

degree of freedom

Answer 7

The variables by which an object can move. In assemblies, an object floating free in space with no constraints to another object can be moved along three axes of translation and around three axes of rotation.

Question 8

design brief

Answer 8

A written plan that identifies a problem to be solved, its criteria, and its constraints. The design brief is used to encourage thinking of all aspects of a problem before attempting a solution.

Question 9

design statement

Answer 9

A part of a design brief that challenges the designer, describes what a design solution should do without describing how to solve the problem, and identifies the degree to which the solution must be executed.

Question 10

domain

Answer 10

The set of input values of a function.

Question 11

extrusion

Answer 11

1. A manufacturing process that forces material through a shaped opening. 2. A modeling process that creates a three-dimensional form by defining a closed two-dimensional shape and a length.

Question 12

function

Answer 12

1. A relationship from one set (called the domain) to another set (called the range) that assigns to each element of the domain exactly one element of the range. 2. The action or actions that an item is designed to perform.

Question 13

geometric constraint

Answer 13

Constant, non-numerical relationships between the parts of a geometric figure. Examples include parallelism, perpendicularity, and concentricity.

Question 14

marketing

Answer 14

The promotion and selling of products or services.

Question 15

mathematical modeling

Answer 15

The process of choosing and using appropriate mathematics and statistics to analyze empirical situations, to understand them better, and to improve decisions.

Question 16

mock-up

Answer 16

A model or replica of a machine or structure for instructional or experimental purposes. Also referred to as an Appearance Model.

Question 17

model

Answer 17

A visual, mathematical, or three-dimensional representation in detail of an object or design, often smaller than the original.

Question 18

origin

Answer 18

A fixed point from which coordinates are measured.

Question 19

packaging

Answer 19

Materials used to wrap or protect goods.

Question 20

pattern

Answer 20

A repeated decorative design.

Question 21

physical model

Answer 21

A physical representation of an object. ex. prototypes and appearance models

Question 22

plane

Answer 22

A flat surface on which a straight line joining any two points would wholly lie.

Question 23

prototype

Answer 23

A full-scale working model used to test and improve a design concept by making actual observations and necessary adjustments.

Question 24

range

Answer 24

The set of output values of a function.

Question 25

revolution

Answer 25

Creating a 3D solid or surface by revolving a 2D shape about an axis

Question 26

rotation

Answer 26

Turning around an axis or center point.

Question 27

round

Answer 27

A rounded exterior blend between two surfaces.

Question 28

scale model

Answer 28

An enlarged or reduced representation of an object that is usually intended for study purposes.

Question 29

scoring

Answer 29

Making an impression or crease in a box blank to facilitate bending, folding, or tearing.

Question 30

solid

Answer 30

A three-dimensional body or geometric figure.

Question 31

solid modeling

Answer 31

A type of 3D CAD modeling that represents the volume of an object, not just its lines and surfaces.

Question 32

subassembly

Answer 32

An assembled part that is a part of a larger assembly.

Question 33

translation

Answer 33

Motion in which all particles of a body move with the same velocity along parallel paths.

Question 34

working drawings

Answer 34

Drawings that convey all of the information needed to manufacture and assemble a design.