M13/4/DESTE/HPM/ENG/TZ0/XX PAST PAPERS - SUBJECT...2013/05/16 · 2213-6201 – 7 – T e 134DESTEPET0 12. Figure 3 shows what happens when a plastic bag is overloaded. Figure 3:

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M13/4/DESTE/HPM/ENG/TZ0/XX

Thursday 16 May 2013 (afternoon)

DESIGN TECHNOLOGYHIGHER LEVELPAPER 1

INSTRUCTIONS TO CANDIDATES

• Do not open this examination paper until instructed to do so.• Answer all the questions.• For each question, choose the answer you consider to be the best and indicate your choice on

the answer sheet provided.• The maximum mark for this examination paper is [40 marks].

1 hour

© International Baccalaureate Organization 2013

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1. What is notidentifiedinthedesignbrief?

A. Thetargetmarket

B. Thedesigngoal

C. Themajorconstraintsonthedesign

D. Thedetailedrequirementsforthedesign

2. Figure 1showsaconceptvehicle–theScooto–acrossbetweenascooterandacardesignedtocarry threepeople. Itwasdesignedby theFrenchdesignandengineeringstudioETUDIntégral.AprototypeoftheconceptcarwasexhibitedattheParisMotorShow.

Figure 1: Concept car designed by ETUD

[Source:DesignedbyETUDintegral”]

What is notlikelytobetrueofaprototypeoftheconceptvehicle?

A. Itcommunicatestheconcepttopotentialcustomersbetterthanadrawing

B. Itwillworklikethefinalproduct

C. Itmaynevergointocommercialproduction

D. Itmodelsradicalfeaturesofthedesign

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3. Figure 2 shows a pair of safety scissors produced by Elephant Products company. They wereproducedtoovercomeinjuriessustainedbychildreninusingscissorsforartandcraftactivities.

Figure 2: Safety scissors produced by Elephant Products

[Source:http://www.elephantproducts.com/pakidermscissors.html?pab=1_6]

Whichideas-generatingtechniquewouldhavebeenusedtoidentifytheproblemsassociatedwithearlierdesignsforchildren’sscissors?

A. Brainstorming

B. Adaptation

C. Constructivediscontent

D. Analogy

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4. Whatistrueofconvergentthinking?

I. Itisanalytical

II. Itisconceptual

III. Itissolution-focused

A. IandII

B. IandIII

C. IIandIII

D. I,IIandIII

5. Whichcyclesfocusonproducingasuitablesolutiontoaproblem?

Design cycle Product cycle

A. No No

B. No Yes

C. Yes No

D. Yes Yes

6. Whatismorelikelytobetrueofaloneinventorthanaproductchampion?

A. S/heisanentrepreneur

B. S/hehasinfluenceinacompany

C. S/heisobjectiveoverthemeritsofaninvention

D. S/hehasin-depthunderstandingofthescientificaspectsofadesign

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7. What is nottheresultofrecycling?

A. Asupplyofvirginrawmaterial

B. Salvaginghigh-valuematerials

C. Reducingthehazardsassociatedwithdisposal

D. Reducinglandfill

8. Whatbenefitsareachievedbyaddressingissuesidentifiedinthelifecycleanalysisofaproduct?

I. Savingnaturalresources

II. Reducingenergyconsumption

III. Minimizingwaste

A. IandII

B. IandIII

C. IIandIII

D. I,IIandIII

9. Whichdesignstrategyismostlikelytopromoterecycling?

A. Usingpermanentlyjoinedsub-assemblies

B. Minimizingthenumberofcomponents

C. Usingstandardcomponents

D. Labellingcomponentswiththematerialfromwhichtheyaremade

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10. Whichstrategyisnotfacilitatedbymanufacturingwashingmachinesfromstandardcomponents?

A. Repair

B. Reconditioning

C. Reuse

D. Recycling

11. Whatistheabilityofamaterialtowithstandpullingforces?

A. Ductility

B. Hardness

C. Tensilestrength

D. Toughness

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12. Figure 3showswhathappenswhenaplasticbagisoverloaded.

Figure 3: The effect of a heavy load on a plastic bag

[Source:Source:www.absorblearning.com.Usedwithpermission.]

WhatexplainstheeffectofaheavyloadonaplasticbagasshowninFigure3?

A. Plasticdeformation

B. Stiffness

C. Ductility

D. Tensilestrength

13. Why are thermosets unsuitable for use as adhesives in products designed for disassembly by applicationofheat?

A. Thermosetshaveextensivebondingbetweenthelinearchains

B. Theeffectoftemperatureonathermosetisirreversible

C. Thermosetshavearigid3Dstructure

D. Thermosetsaremadeoflinearchainmolecules

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14. Whichcharacteristicwouldmakeamaterialsuitableforuseinthedevelopmentofaroboticlimb?

A. Changeinviscositywhenexposedtoelectricfield

B. Changeinviscositywhenexposedtomagneticfield

C. Changeinshapewhenexposedtoelectricfield

D. Changeinshapewhenexposedtomagneticfield

15. Figure 4showstheviewthroughtheglassfloorintheviewingplatformoftheCNTowerinToronto(Figure 5).

Figure 4: The glass fl oor in the CN Tower Figure 5: The CN Tower

[Source:http://upload.wikimedia.org/wikipedia/commons/e/e9/Glass_Floor_of_the_CN_Tower.JPG]

[Source:http://en.wikipedia.org/wiki/File:Toronto_-_ON_-_Toronto_

Harbourfront7.jpg]

WhichcombinationofpropertiesmakesglassasuitablematerialfortheflooroftheviewingplatformintheCNTower?

I. Itisstrongincompression

II. Itisstrongintension

III. Itistransparent

A. IandII

B. IandIII

C. IIandIII

D. I,IIandIII

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16. WhichmanufacturingtechniquewouldhavebeenusedtoproducethebasketshowninFigure 6?

Figure 6: A basket

[Source:http://commons.wikimedia.org/wiki/File:Cistell_002.jpg]

A. Moulding

B. Casting

C. Weaving

D. Stitching

17. What is nottrueofthebreakevenpointforaproduct?

A. Fixedcostsarecovered

B. Variablecostsdecreasewithincreasedproduction

C. Totalcostsequalsalesrevenue

D. Itimpactsontheunitcostofaproduct

18. Whichcostswillbehigherforautomatedproductionthanforcraftproduction?

A. Capitalcosts

B. Labourcosts

C. Rawmaterialcosts

D. Marketingcosts

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19. Inwhichdesigncontextwouldthe5th–95thpercentilebeused?

A. Thelengthofabed

B. Therangeofadjustmentforthedriver’sseatinacar

C. Thereachenvelopeforaworkstation

D. Theheightofawashhandbasin

20. Whatisamajoradvantageofuserresearch?

A. Itiscost-effective

B. Itprovidesmainlyquantitativedata

C. Itistime-consuming

D. Itdoesnotrequireaprototype

21. Which process is focussed on identifying defects in a product after it is developed but before it isreleased?

Quality control Quality assurance

A. No No

B. No Yes

C. Yes No

D. Yes Yes

22. Whichtypeofpowerdoesnotresultintheproductionofcarbondioxide?

A. Musclepower

B. Watermill

C. Steamengine

D. Dieselengine

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23. Whichatmosphericpollutantcausesacidrain?

A. Nitrogenoxide

B. Carbonmonoxide

C. Sulphurdioxide

D. Lead

24. Whatcharacterizestheuseofpanelsofphotovoltaiccells?

A. Lowsetupcosts

B. Highrunningcosts

C. Goodcontinuityofsupply

D. Lowmaintenancecosts

25. What is nottrueofusinganuntreatedlaminatedveneerlumber(LVL)beaminsteadofasolidtimberbeamforstructuralapplications?

A. Itcanbeusedforexteriorapplications

B. Ithasbetterload-bearingcharacteristicsforthesamecross-sectionalarea

C. Ithasuniformcharacteristicsalongitslength

D. Largepiecescanbeproducedeasily

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26. A designermust select a factor of safety so that a product is strong enough but not too strong. SomefactorsofsafetyusedindifferentdesigncontextsareshowninTable 1.

Table 1: Factors of safety used for different design contexts

Design context Factor of safety

Lift 11.0

Commercialaircraft 1.5

Humanspacevehicle 1.4

Cargo-carryingspacevehicle 1.25

Whatenablesadesignertoselectalowfactorofsafety?

A. Moredevelopmentaltesting

B. Sufficientdatatoundertakeprecisecalculations

C. Onlyasmallnumberofpartsarebeingmanufactured

D. Closecontrolofthewaytheproductisused

27. Figure 7showsastress-straingraphforamaterial.

Figure 7: A stress-strain graph for a material

Stress

A B CD

Strain

Whichpointindicatestheyieldpoint?

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28. A salad spinner (Figure 8) can be used to dry salad leaves afterwashing. It comprises a bowl, abasketwithlotsofholesandalidwithahandle.Thehandleislinkedtoasmallgear(A)with 12teethwhichmesheswithalargegear(B)with48teeth(Figure 9).Thelargegearispartofthelidandfitsintothebasketsothatwhenthehandleisturnedthebasketspinsinsidethebowlandwaterisseparatedfromthesaladleavesandcollectsinthebowl.

Figure 8: A salad spinner Figure 9: Interlocking gear arrangement in lid of salad spinner

AB

[Source:http://en.wikipedia.org/wiki/File:Slacentrifuge.jpg]

[Source:©InternationalBaccalaureateOrganization2013]

Howmanytimeswilltheinnerbowlturnforeveryturnofthehandle?

A. 0.25

B. 1

C. 4

D. 192

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29. Figure 10showsarampusedtoloadasmallvan.Theheightoftherampisonemetre,thelengthoftherampisthreemetres.

Figure 10: A ramp for loading a furniture removal van

Whatisdeterminedbydividingthelengthoftherampbytheheightoftheramp?

A. Effort

B. Velocityratio

C. Efficiency

D. Momentarm

30. What is notanadvantageofthefrictionweldingprocessformetals?

A. Littlepreparationofthematerialbeingweldedisrequired

B. Thesizeofpartswhichcanbejoined

C. Differentmaterialscanbejoined

D. Itresultsinastrongjoint

31. Whichmanufacturingprocesswouldbeusedtoproducehollowpartswithahighstrength-to-weightratio?

A. Spray-up

B. Vacuumbagging

C. Filamentwinding

D. Lamination

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32. Whatisanaspectofenvironmentalsustainability?

A. Carryingcapacity

B. Productivity

C. Culturalidentity

D. Empowerment

33. Whichattributescharacterizelivingbuildings?

I. Theycanproducerenewableenergyon-sitetomeetallenergyneeds

II. Theyuserainwatercollectedonsiteforallplumbingfeatures

III. Theydonotoutputwastewaterintotheseweragesystem

A. IandII

B. IandIII

C. IIandIII

D. I,IIandIII

34. Whichfactorrelatingtoheatlossorgainfromabuildingisdeterminedbyclimaticconsiderations?

A. Temperaturedifference

B. Area

C. Thickness

D. Thermalconductivity

35. Whatdifferentiatesanactivesolarenergysystemfromapassivesolarenergysystem?

A. Itabsorbsheatfromthesun

B. Itisanenergy-savingsystem

C. Itpumpsaheat-absorbingfluidthroughacollector

D. Itusesasolarcollectortostoreenergy

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Questions 36–40 relate to the following case study. Please read the case study carefully and answer the questions.

TheSieger canopener (Figure 11)was invented andpatented in1913. Itmade canopening easy forthefirst timeand is recognisedasadesignclassic. TheSiegerEminentcanopenerwasfirstproducedin 1949 to expand the product range and is still in commercial production. It consists of a metal (steel)cuttingbladeattachedtoaratchetandahandlewhichactsasalever.Itsdesignhaschangedlittlesince itwasfirst invented. TheSiegercompanynowproducesa rangeofcanopeners forcommercial andhouseholdusesoitisanexampleofarobustdesignwhichevolvedintoaproductfamily.

Figure 11: The Sieger Eminent can opener

Fulcrum

Lever

CuttingbladeRatchet

[Source:http://commons.wikimedia.org/wiki/File:Dosenoeffner-Sieger.jpg]

36. WhichpropertyofmetalsmakesmetalsuitableforthecuttingbladeoftheSiegerEminentcanopener?

A. Hardness

B. Stiffness

C. Tensilestrength

D. Toughness

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37. WhatfeatureofaratchetisimportantinthedesignoftheSiegerEminentcanopener?

A. Itincreasesthespeed

B. Itdecreasestheforce

C. Itexertsaforcewhenturnedinonedirectiononly

D. Italterstheaxisofrotation

38. Whatdefinesarobustdesign?

A. Aflexibledesignthatcanbeadaptedtochangingmarketrequirements

B. Adesignwhichtakesaccountofitsenvironmentalimpact

C. Adesigndevelopedbythinkingaboutaprobleminadifferentway

D. Adesigninwhichtrivialchangesovertimecumulateintosignificantchange

39. WhatistrueofthehandleoftheSiegerEminentcanopener?

I. Itincreasesthemechanicaladvantageofthecanopener

II. Itisasecond-classlever

III. Itincreasestheforceonthecuttingblade

A. IandII

B. IandIII

C. IIandIII

D. I,IIandIII

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40. WhatadvantagedoesdevelopingaproductfamilyofcanopenersgivetheSiegercompany?

I. Fastertimetomarket

II. Cost-effectiveness

III. Increasedproductivity

A. IandII

B. IandIII

C. IIandIII

D. I,IIandIII

Documents

M13/4/DESTE/HPM/ENG/TZ0/XX PAST PAPERS - SUBJECT...2013/05/16 · 2213-6201 – 7 – T e 134DESTEPET0 12. Figure 3 shows what happens when a plastic bag is overloaded. Figure 3: