AQA 7552 A Level D&T Product Design Series B - Paper 1 Technical principles

Please write clearly, in block capitals Centre number Candidate number Surname Forenames(s) Candidate’s signature A-Level - Design & Technology (Product Design) Date of Exam 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 information at the top of this page • Answer all questions • You must answer the questions in the spaces provided. Do not write on blank pages • Do all rough work in this paper. Cross through any work that you do not want to be marked Information • The marks for questions are shown in brackets • The maximum mark for this paper is 120 1. Select the most suitable adhesive from the list below to complete the table in figure 1. [3 marks] You may only use an adhesive once. • Contact adhesive • Epoxy resin • PVA • Solvent cement Figure 1 Materials to be bonded Specific adhesive Plywood sheet to beech veneer HIPS (high impact polystyrene) sheet to acrylic rod Melamine formaldehyde veneer to MDF (medium density fibreboard) board 2. Stainless steel is an example of a metal alloy. (a) Give the meaning of the term ‘alloy’ and briefly explain why they are created. [2 marks] (b) Give two specific examples of an alloy, aside from stainless steel. [2 marks] 3. Timber is sold in a variety of stock forms. Describe the stock forms given below. (a) Planed square edge (PSE) [2 marks] (b) Mouldings [2 marks] 4. A wooden garden shed is to be repainted to improve its aesthetic appearance and provide a longer working life. Identify, in the correct sequence, six appropriate stages required in the preparation and painting of the garden shed. [6 marks] Stage 1 Stage 2 Stage 3 Stage 4 Stage 5 Stage 6 5. Define the meaning of the term ‘biodegradable polymer’ and evaluate the use of biodegradable polymers in consumer products. [4 marks] 6. The steel bracket below has been joined permanently by MIG (metal inert gas) welding. Describe, using notes and sketches, the process of MIG welding the two separate parts of the bracket together. [9 marks] MIG weld