WELSH JOINT EDUCATION COMMITTEE CYD-BWYLLGOR ADDYSG CYMRU

General Certificate of Secondary Education Tystysgrif Gyffredinol Addysg Uwchradd

Design and Technology 2007

Resistant Materials Technology 141 04

Paper 2

Higher Tier Grades D to A*

Q.1 / (a) / Beech / Acrylic –
temporary : Screw / double sided tape.
Perm : glue with araldite-epoxy resin / superglue.
Contact adhesive. / 1
1 / 6
Steel –
temp : nut and bolt, self tapping screw, double sided tape.
Perm : Rivet, weld, brazing. / 1
1
MDF –
Temp: KDF : Screw.
Perm : dowel butt, butt, mitre, lap, pva –
Pin and glue, biscuit. / 1
1
Accept same answer only once.
(b) / Mild , high carbon, stainless, silver steel, HSS, tool steel, bright / black mild steel. / 1+1 / 2
(c) / (i) / Polystyrene, polyester, PVC Nylon, PET, ABS, polypropylene. / 1+1 / 2
(ii) / Simple / basic answer ONE mark.
Expect more sophisticated response for TWO marks to clarify answer.
Top / female part needs to allow for the thickness of the plastic.
Round off edges of mould … because….
Suitable material.
Smooth surface of mould.
Release angle, taper. / 2 x 3 / 6
(iii) / Will accept any suitable hard resistant material.
Reason:
Must be related to the material given and be relevant to the making of a mould.
– wood with close grain : strength quality of surface finish, can be easily machined.
Hard wearing – for repeat use.
wood with close grain / structure : – quality of surface finish, east to shape.
one mark basic answer. / 1
2 / 3
Q.2 / (a) / Spec ; ergonomics: comfortable to sit at.
Storage for other things.
Attractive to look at. /aesthetically pleasing.
Be compact in size.
Safety.
Ergonomic.
Strong must have justification for one mark.
How it will be constructed – for flat pack.
Easily transported.
1 mark – Short answer.
2 marks – more detail / justification. / 2 x 4 / 8
(b) / Chipboard that has a decorative layer of wood or plastic on it’s surface – improve the aesthetics.
Opportunity for better candidates to demo depth of thinking. / 3
(c) / 1 mark – very basic understanding.
2 marks – include some constructional detail.
3-4 marks – well thought out that includes enough information to make.
Use notes and sketches – should have ref to how it will achieve a smooth action. / 4
(d) / Can produce in high volumes.
Speed of manufacture.
Require less manpower.
Automation.
Accuracy – drilling holes components etc.
Some good justification for two marks. / 2 x 2 / 4
Q.3 / (a) / Must be a real wood not manufactured.
Name of a suitable solid wood e.g. Beech Pine.
1 mark – Looks good.
2 marks – strong hard tight grain, easy to work, resistant to knocks etc.
Strong needs justification for one mark. / 1+2 / 3
(b) / 1 mark – very basic understanding.
2 marks – include some constructional detail.
3-4 marks – well thought out that includes enough info to make.
Must have Ref to how it will turn freely. / 4
(c) / Safety precautions:
No small parts.
Non toxic finish.
Rounded corners.
Strong.
Lightweight – can be safely carried about.
1 mark – Short answer.
2 marks – more detail / justification – non toxic paint because children could put in their mouth. / 3x2 / 6
(d) / (i) / Should include : marking out – cutting hole – finishing.
1 mark – basic answer no detail.
2 marks – some reference to techniques.
3 marks – some step by step approach leading to good understanding.
4 marks – clear full explanation. / 4
(e) / 1 mark – name of machine:
CAMM1 – STIKA machine.
CAM plotter router.
Laser cutter.
CAMM2.
1 mark – very basic understanding.
2 marks – some understanding relating to manufacturing techniques, materials, tooling.
3 marks – good understanding with manufacturing techniques, materials, tooling. / 1
3 / 4
Q.4 / (a) / (i)
(ii)
(iii) / Centre punch – 1 mark.
1 mark – dividers, scriber and template.
1 mark – very basic no ref to names of any equipment.
2 marks – some understanding – name some equipment.
3-4 marks – good sound response with ref to correct equipment.
Accept Plasma cutter, angle grinder – needs explanation! / 1
1
4
(iv) / One mark for any 3 of the following:
Centre punching hole.
Clamping metal in hand vice / with G Cramp.
Drilling a pilot hole.
Drilling : ref to safety ; goggles guards etc.
Expanded/detailed answer reward with extra mark. / 4
(b) / (i) / 2 D design , prodesktop, Autodesk Inventor, sketch up, solid edge, solid works / 1 / 1
(ii) / 1 mark – only vague understanding.
2 marks – sound response – with clear ref to how it has been used in project.
3 marks – good understanding with ref to where CAD was used. / 3
(c) / 2 disadvantages
Initial start up costs – equipment.
Training of workforce.
Heavy investment.
May be hard to find suitable workforce.
:maintenance / repair staff. / 1+1 / 2
Q.5 / (a) / (i) / The design of a stand that is stable
1 mark – basic solution, no construct details but would probably stand up.
2 marks – feasible solution, some construct details – would stand up – is it portable?
3 marks – clear solution that considers stability in construction and is portable. / 3
(ii) / Constructional details of stand
Judge the overall quality and feasibility of the solution that will clearly work.
1-2 marks basic idea but could work.
3-4 marks feasible solution that shows some important constructional features.
5- marks feasible solution, clearly communicated with detailed range of sketches and good annotation. / 5
(iv) / Showing how the sheet music is held securely to the stand
1 mark – vague reference to how held.
2 marks – clear ref ; lacking construction detail.
3 marks – some constructional detail given. / 3
(v) / Two important dimensions
Naming up to TWO correct dimensions – must be metric – must refer to design not paper. / 2
(vi) / Quality of communication
4 Excellent
3 Good
2 Average
1 Below average / 4
Q.5 / (b) / 5 marks – detailed ref to jigs and formers /quality control.
3-4 marks – some reference to formers & jigs.
1-2 marks – some basic ref but no details. / 5

GCSE Design & Technology - Resistant Materials Technology - Higher MS (Summer 2007)/MLJ

10 January 2008

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