Ch. 10 Technical Drawing

question

A(n) __ refers to the way in which something is usually done.
answer

convection
question

The general term used to describe the different projected views is known as __ projection.
answer

axonometric
question

Multi-view drawings are often called __ view drawings.
answer

three
question

A __ is often used on outside intersecting planes by removing material at an angle to one of the planes.
answer

chamfer
question

Oblique pictorials that are drawn at a __ degree angle may be sketched using isometric grid paper.
answer

30
question

Team members can indicate changes by including a dated revision note on the drawing and by issuing an __ notice (ECN).
answer

engineering change
question

__ lines are used to indicate an object’s sizes, as well as the sizes and the locations of its features.
answer

Dimension
question

Prior to the development of the computer, drawings were made on vellum using pencil and ink in a process known as __.
answer

drafting
question

Sketches are turned into 3D models by __, a term often used to describe a number of functions, such as extrusion, lofting, revolving, sweeping, and shelling.
answer

features
question

In architecture building design, most units are in __, so a scale of that unit is required to represent the building on paper.
answer

feet
question

___ are explanatory notes on drawings that provide important information to the person reading the drawing.
answer

annotations
question

A(n) ___ projection drawing has one face parallel to the viewing planes.
answer

oblique
question

ISO standards are based on the __ systems.
answer

metric
question

A(n) __ view provides a view of an object as though it were by a saw.
answer

sectional
question

__ surface modeling is a technique that allows the designer to create a \”skin\” over a component, creating curves in almost any shape desired.
answer

Freeform
question

Though CAD solid modeling programs automatically generate technical drawing views, accurately communicating dimensions and tolerances is still a manuel process conducted by a designer. T or F
answer

True
question

There is no difference between a drawing and a projection. T or F
answer

False
question

The use of programs like AutoCAD increased the amount of time needed for engineers and draftspersons to produce engineering drawings. T or F
answer

False
question

In mulit-view drawings, precisions is very important, so the picture must reflect true scale and proportion of the object drawn. T or F
answer

True
question

Solid modeling is a method that involves mathematically describing solely the interior of an object. T or F
answer

False
question

The arrows on a cutting plane line indicate what part of the object is to be retained. T or F
answer

False
question

the visible lines that outline and detail an object’s shape are called object lines. T or F
answer

True
question

Today, many companies develop technical drawings automatically from 3D CAD models. T or F
answer

True
question

Geometry concepts are rare in technical drawings. T or F
answer

False
question

ANSI has established standards for technical drawings. Engineers in the United States,Canada, and several other countries follow these standards. T or F
answer

True
question

What does design work require?
answer

It requires creativity, research, trial, and error and collaboration.
question

What are technical drawings referred to?
answer

Orthographic Multi-view Drawings
question

Orthographic Drawing
answer

is a view looking straight down on an object
question

Multi-view Drawings
answer

are three view drawings (the front, the top, and one side)
question

Isometric Drawing
answer

a three dimensional view
question

Angles
answer

the amount of rotation needed to bring one line of plane into coincidence with another, generally measured in radians or degrees
question

American Design Drafting Association
answer

was created in 1948
question

Convection
answer

the wat in which something is usually done, either by traditions or by established standards
question

ISO
answer

is like the ANSI but standards are formatted in the metric system
question

ANSI
answer

standardizes technical drawings
question

ECN
answer

a document that accompanies a drawing or set of drawing to record or authorize changes to a design
question

Axonometric Projection
answer

Originates from orthographic projection. The three types of projections are isometric, dimetric, and trimetric projection.
question

Isometric
answer

is created when a figure is rotated 45 degrees
question

Oblique Projection Drawing
answer

is a type of drawing involving a combination of a flat, or orthographic front lines receding lines are drawn at half scale, and usually at a 45 degrees
question

Cavalier Projection
answer

uses width, height, and depth measurements
question

Cabinet Projection
answer

scales the depth to one-half of the true distance
question

Third Angle Projection
answer

The orthographic projection arrangement of views. Used in the United States and Canada.
question

Spatial Ability/Spatial Relations
answer

being able to view from a different angle
question

Line Conventions
answer

line rules
question

Object Lines
answer

visible outlining lines
question

Construction Lines
answer

are light weight
question

Hidden Lines
answer

are dashed lines
question

Center Lines
answer

clarifies the center
question

Extension Lines
answer

serves for diameters
question

Pane Line
answer

is located in top view
question

Auxiliary View
answer

is an orthographic view that is used to show the surface
question

Foreshortened
answer

when lines are shortened to give the illusion of extending or projecting into space
question

Projection Lines
answer

extend out from the object ti a two dimensional viewing plane that is parallel to the respective surface
question

Chain Dimensioning
answer

also known as point to point dimensioning where dimensions are established from one point to eh next
question

Datum Dimensioning
answer

is a dimensioning system where each dimension originates from a common surface, plane, or axis. Also known as baseline dimensioning
question

Baseline Dimensioning
answer

a system of in which all dimensions are places from a datum and not from feature to feature
question

Bilateral Tolerance
answer

a tolerance in which variation is permitted in both directions from the specified dimension
question

Unilateral Tolerance
answer

a tolerance in which variation is permitted in only one direction from the specified dimension
question

Limit Dimension
answer

a dimension showing two dimensions stacked on top of each other. The value represents the upper dimensional limit, and the value the bottom represents the lower dimensional limit
question

Parametric Modelings
answer

a CAD modeling method where each feature, such as a length of a side or radius of a filet, sues a parameter to define the size and geometry of that feature and to create relationships between features
question

Parameters
answer

a quantity that is fixed for the case in question but may vary in other cases
question

Feature-Based Modelings
answer

a characteristic of a CAD program where solid models are constructed from geometric feature, such as holes filets, shells, and lofts instead of unions mathematical geometric entities such as spheres, cylinders, and cubes
question

Freeform Surface Modeling
answer

a technique that allows the designer to create a \”skin\” over a component, creating curves in almost and shape desired

Get instant access to
all materials

Become a Member