AQA A-level DESIGN AND TECHNOLOGY: PRODUCT DESIGN 7552/1 Paper 1 Technical Principles Question Paper + Mark scheme [MERGED] June 2022 G/TI/Jun22/E6 7552/1 (JUN) A-level DESIGN AND TECHNOLOGY: PRODUCT DESIGN Paper 1 Technical Principles Time allo

AQA A-level DESIGN AND TECHNOLOGY: PRODUCT DESIGN 7552/1 Paper 1 Technical Principles Question Paper + Mark scheme [MERGED] June 2022 G/TI/Jun22/E6 7552/1 (JUN) A-level DESIGN AND TECHNOLOGY: PRODUCT DESIGN Paper 1 Technical Principles Time allowed: 2 hours 30 minutes Materials For this paper you must have:  normal writing and drawing instruments  a scientific calculator. Instructions  Use black ink or black ball-point pen. Use pencil only for drawing.  Fill in the boxes at the top of this page.  Answer all questions.  You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages.  If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your answer(s).  Do all rough work in this book. Cross through any work you do not want to be marked. Information  The marks for questions are shown in brackets.  The maximum mark for this paper is 120. For Examiner’s Use Question Mark 1– 2 3– 4 5 6 7 8–9 10–11 12–13 14–15 16 17 18 19–20 21–22 TOTAL Please write clearly in block capitals. Centre number Candidate number Surname ________________________________________________________________________ Forename(s) ________________________________________________________________________ Candidate signature ________________________________________________________________________ I declare this is my own work. 2 (02) G/Jun22/7552/1 Do not write outside the box Answer all questions in the spaces provided. 0 1 State three reasons why Precious Metal Clay (PMC) may be used in the manufacture of a decorative pendant for a necklace. [3 marks] Reason 1 _________________________________________________________________________ ___________________________________________________________________________________ Reason 2 _________________________________________________________________________ ___________________________________________________________________________________ Reason 3 _________________________________________________________________________ ___________________________________________________________________________________ 0 2 A purple component is to be produced using a pigmented resin. Use the data to calculate the maximum number of these components that could be produced. You may assume unlimited supplies of clear resin and magenta pigment. [4 marks] Cyan pigment available 10 ml Single component volume 5965 mm3 Clear Resin Cyan Pigment Magenta Pigment Ratios for Purple Resin 80 4 1 ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ Answer ____________________________ components ____ 7 3 (03) G/Jun22/7552/1 Do not write outside the box Turn over 8 0 3 Figure 1 shows a low carbon steel shopping basket with a chrome plated finish. Figure 1 Analyse and evaluate the suitability of the material and finish used for the shopping basket. [6 marks] ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ 4 (04) G/Jun22/7552/1 Do not write outside the box 0 4 Explain how rapid prototyping has impacted on traditional manufacture. [9 marks] ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ____ 15 Turn over 8 5 (05) G/Jun22/7552/1 Do not write outside the box Turn over for the next question DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED 6 (06) G/Jun22/7552/1 Do not write outside the box 0 5 . 1 Table 1 shows a series of coordinates used by a laser cutter to produce a component. The external and internal cutting paths are shown. Table 1 External Path Internal Path (10,10) (30,20) (70,10) (60,20) (70,80) (60,70) (30,80) (40,70) (10,10) (30,20) Plot the external and internal paths on the grid below. [1 mark] 0 40 60 80 0 20 40 60 80 10 30 50 70 90 90 x y 7 (07) G/Jun22/7552/1 Do not write outside the box Turn over 8 0 5 . 2 Figure 2 shows the path of a laser cutter used to cut the shape below. Figure 2 0 40 60 80 0 20 40 60 80 10 30 50 70 90 90 x y Laser cutter path Grid spacing in mm Calculate the shaded area. [2 marks] ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ Total shaded area ____________________________ mm2 ____ 3 8 (08) G/Jun22/7552/1 Do not write outside the box 0 6 Figure 3 shows the current dimensions of a school desk. If all existing components are used, calculate how much closer together Bracket A and Bracket B would be at a new desk height of 720 mm. Assume that when fully extended the end of each leg is vertically in line with the bracket on the underside of the desk. [7 marks] Figure 3 Dimension in mm Bracket A Bracket B Not drawn to scale 700 60° ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ 9 (09) G/Jun22/7552/1 Do not write outside the box Turn over 8 ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ Distance between Bracket A and Bracket B is closer by = ____________________________ mm ____ 7 10 G/Jun22/7552/1 Do not write outside the box (10) 0 7 Explain why galvanising is an appropriate finish for the low carbon steel scaffold shown in Figure 4. [6 marks] Figure 4 ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ____ 6 11 G/Jun22/7552/1 Do not write outside the box Turn over 8 (11) 0 8 State three different stimuli that can cause a change in the property of a smart material. [3 marks] Stimulus 1 ________________________________________________________________________ ___________________________________________________________________________________ Stimulus 2 ________________________________________________________________________ ___________________________________________________________________________________ Stimulus 3 ________________________________________________________________________ ___________________________________________________________________________________ 0 9 Name a specific application for each of the following materials: [3 marks] Cellulose acetate _________________________________________________________________ ___________________________________________________________________________________ Fluted polypropylene ______________________________________________________________ ___________________________________________________________________________________ Styrofoam ________________________________________________________________________ ___________________________________________________________________________________ ____ 6 Turn over for the next question 12 G/Jun22/7552/1 Do not write outside the box (12) 1 0 Styrofoam and high-density modelling foam are often used in modelling. Compare and evaluate the suitability of each material for the manufacture of a block model that represents aesthetic appearance to a potential client. [6 marks] ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ 13 G/Jun22/7552/1 Do not write outside the box Turn over 8 (13) 1 1 Explain why die casting is an appropriate manufacturing method for the model toy vehicle shown in Figure 5. [6 marks] Figure 5 ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ____ 12 14 G/Jun22/7552/1 Do not write outside the box (14) 1 2 Describe the purpose of the following polymer additives:  fillers  plasticisers. [2 x 2 marks] Fillers ____________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ Plasticisers _______________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ 1 3 Give two reasons why outdoor decking may be pressure treated before use. [2 marks] 1 _________________________________________________________________________________ ___________________________________________________________________________________ 2 _________________________________________________________________________________ ___________________________________________________________________________________ ____ 6 15 G/Jun22/7552/1 Do not write outside the box Turn over 8 (15) 1 4 A polymer extrusion process has been used to produce the rigid polyvinyl chloride (PVC) cable trunking shown in Figure 6. Describe the main stages of the polymer extrusion process. [6 marks] Figure 6 ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ 16 G/Jun22/7552/1 Do not write outside the box (16) 1 5 Describe the advantages to a manufacturer of using bought-in components. [6 marks] ___________________________________________________________________________________ ______________________________________