What is product design? Explain its importance.
[3 marks]List the ideal checklist for product design.
[4 marks]Explain the essential factors of product design.
[7 marks]What are the limitations of plastic materials?
[3 marks]Explain briefly external and internal threads.
[4 marks]What are undercuts? What care should be taken while designing undercuts?
[7 marks]Explain about gate size & location.
List any three self-lubricating plastic materials.
[3 marks]What are the reasons for the failure of a plastic product?
[4 marks]Compare different plastic materials.
[7 marks]What care should be taken while selecting a material for making milk pouches?
[3 marks]Explain the importance of designing radii and fillets in a product.
[4 marks]Explain the long-term and short-term properties of plastics.
[7 marks]What are the disadvantages of injection moulding?
[3 marks]What is compression moulding? Explain briefly.
[4 marks]Compare blow moulding & rotational moulding processes.
[7 marks]Which process is used to manufacture thermoplastic chairs and why?
[3 marks]What is Thermoforming? Explain briefly.
[4 marks]Compare different plastic processing methods with respect to product size.
[7 marks]Describe the selection of material for designing a contact lens.
[3 marks]What is the importance of ribs and bosses?
[4 marks]Describe the procedure for designing a plastic toothbrush in detail.
[7 marks]Define: i) Molded holes ii) Warpage iii) Insert
[3 marks]Briefly explain lettering and embossing.
[4 marks]Describe the procedure for designing pipes in detail. Page 1 of 1
[7 marks]