Camb AS Level Design Tech Spring Semester Final Prep

This is a metal cylindrical part. Which machine was most likely used to fabricate it?

lathe

Which document states and justifies more precise limits for the performance requirements?

design specification

Which of the following hinder atom and dislocation movement?

cooling quickly (grain boundaries), alloying, work hardening, cold working

Which term refers to a volume production process involving machines controlled by humans.

mechanization

Which type of glass spiderwebs when broken?

laminated

Which type of drawing shows fully dimensioned parts so they can be manufactured in the shop?

orthographic

Which type of plastic is recyclable

thermoplastic

Which production method superseded mechanization (took the place of)?

automation

Which materials shown below have low resistance to damp environments (absorb it)?

particle board

Softwoods are also known as…

confers

Bic pens are considered a “dominant design”

true

Which drawing is correct?

B

Half sections involve cutting a party fully in half

False

JIT manufacturing requires storing many parts in a warehouse to make sure they are delivered “Just in time”

False

Which percentile range is appropriate to accommodate most users?

5-95

Most companies design to the 1st-99th percentile because it is the most profitable

False

In design analysis, strength and stiffness are synonymous terms

False

Which material deflects more when a force is applied?

Material A: Young’s modulus = 1234 psi

Material B: Young’s modulus = 1575 psi

A

Which plastic manufacturing process was used for these parts

injection molding

Which type of wood is used to build homes?

softwood

Permanent deformation of a solid subjected to stress is also known as _________ ___________.

plastic deformation

Ergonomics is also known as ________ __________.

human factors

An individual (often craft produced) article or a prototype for larger scale production.

one-off

Which symbol describes a decision in a flow chart

diamond

Plywood is made by laminating thin sheets of __________ together under heat and pressure.

veneer

In which process are the manufacturing techniques bending, molding, and casting used

shaping

The “Expected Outcome and Broad Requirements” in the Design Brief are extreme limits places on the designer (t/f)

false

Select the synthetic fibers in the list below

nylon, lycra, polyester

Which material is made of linear chains of hydrocarbon rings?

Kevlar

The picture shown below depicts the ______ ______ process.

injection molding

For which type of model for a product would the use ergonomes and manikins be advantageous?

physical

Which figure represents the structure and bonding of a thermoset?

right

Which drawing from the list shown below provides details and dimensions that can be used in the production process?

orthographic

What is one advantage to the manufacturer, of automating a production system?

quality improves

Which material below has high tensile strength, low absorbency, is 5 times stronger than the same weight as steel, and is great for use in sailing?

kevlar

Which are parts of the design specification?

specific requirements

Which number of layers shown below would be correct for a piece of plywood

3 and 5

What defines ergonomics?

scientific information about the relationship of human beings to objects, systems and evironments

Which type of bonding distinguishes a thermoset from a thermoplastic?

I. strong primary bonding within the hydrocarbon chain

II. strong primary bonding between hydrocarbon chains

III. weak secondary bonding between hydrocarbon chains

II only

What is the formal starting point for the design of a new product?

the design brief

A mathematical model uses

symbols

Adding foreign atoms to a metal is called alloying. This process will do which of the following to a metal

ductility decreases, strength increases

The operation of the lathe consists of the following

part rotates, cutting tool moves linearly

In which process are the manufacturing techniques machining, cutting, and abrading used?

wasting

_________ is limited volume production (a set number of items to be produced).

batch

In which design context would the thermal expansion of glass be a major consideration.

the glass window in the metal door of a furnace that heats you house

A(n) __________ is a 3D physical model with moving parts.

manikin

Metals/alloys are very good electrical and thermal conductors and have relatively large CTE’s (coefficient of thermal expansion). This is mostly due to the________.

cloud (sea) of electrons

Which are parts of the design brief?

broad requirements, design goal

Which combination of hardness and toughness make a material suitable for use as a cutting and machining tool?

High hardness

High toughness

A(n) __________ is a two dimensional physical anthropometric model for a specific percentile

ergonome

Using the shape of an Orca’s body as a model for the design of a submarine is an example of

analogy

What material is used in these eyeglass lenses?

photochromic

Pixar’s decision to animate the Anglepoise lamp, shown in the image below, is an indicator of the lamp’s classic Design status.

Which of the following is an indicator of classic design status?

I. no longer produced

II. timeless appeal

III. widely imitated

timeless appeal and widely imitated

In the section view, the areas that would have been in actual contact with the cutting plane are shown with

cross hatching (a.k.a. section lining)

What type of section is limited by a break line?

broken-out section

What types of breaks are used to shorten the view of an object?

conventional breaks

All of the following are elements of section views except

1. letters identifiers, such as A-A

2. hidden lines

3. cutting plane line

4. arrowheads

5. section lines

hidden lines

Identify the type of section shown below

removed

Identify the type of section shown below

broken-out

What type of break is this?

round solid

Identify the type of section shown:

half

Identify the type of section shown

aligned

Identify the type of section shown

revolved

Identify the type of section shown:

offset

Which drawing uses the “best” dimensioning practices learned in class?

a

The dimension line nearest the object should be at least _____ inch from the object.

0.4

What projection is shown?

3rd angle

Spacing of the dimension lines should be uniform throughout the drawing and at least _______ inches apart

0.25

Which drawing uses the best practices learned in class?

a

Dimensioning is made up of two types of descriptions:

locating dimensions, size dimensions

Which projection is shown:

1st angle

________ is the proportion of population dealing with a dimension at or less than a given value

percentile

____________ is the aspect of ergonomics that deals with body measurements, particularly those of size, strength, and physical capacity

anthropometrics

Which percentile is most appropriate for use when designing a washing machine?

50th

Designing the height of an entrance to a building to fit most users will exclude how much of the population?

5%

An A-size drawing format is ________ inches

8.5 × 11

The graph shown below is for

a non-ferrous alloy material (aluminum)

What is shown in the figure?

The component parts of a product and how they fit together.

What is the advantage of using freehand drawings in the design process?

They are quick to produce and can be used for designs development.

Which type of drawing is constructed to a set angle of 30 degrees to the horizontal?

isometric

Which drawing technique is most useful to the manufacturer?

orthographic

What type of drawing is this?

perspective

Which term describes that if deformed it gives off an electric charge, or will deform with an applied charge?

piezoelectric

A 2×4 inch piece of lumber actually measures (in inches)

1.5×3.5

Disposable water bottles most likely fabricated by what process

blow molding

Which permanent joining (fusing) process shown below is the strongest?

1. welding

2. brazing

3. soldering

4. elmer’s metal glue

This manufacturing process involves passing materials (paper, textiles, plastics) through a series of heated rollers to produce a smooth, glossy finish.

calendering

Mass customization is akin to which other type of production

craft

You designed a keychain and used an existing standard split ring that was purchased from a local vendor. Which design strategy did you use?

Design for Manufacture

Computer Integrated Manufacturing (CIM) has which of the following advantages?

consistent quality of products, cheaper products for consumer

Products can be considered classic designs based on how well they fulfill the task for which they have been designed

function

The design contains those implicit features of a product that are recognized as essential by a majority of manufacturers and purchasers.

dominant design

Stage in product life cycle where product is no longer needed even though it functions as well as it did when it was first manufactured.

obsolescence

Within the context of classic design, this relates to the instantly recognizable aesthetics of a particular product. For example, the shape of a Coca-Cola bottle, or the shape of a Volkswagen Beetle motor car.

image

 

Also considered as the three-dimensional space that a product takes up, in the context of classic design, this relates to the shape of a product and the aesthetic qualities that the shape gives.

form