A manufacturer is selecting a material for a component that will be exposed to salt water and carry a moderate load. Explain three properties the material m...

Assessment: Design & Technology: Product Design 9252 | Paper 1 Mock 01 | Technical, designing and making principles Subject: Design & Technology: Product Design - 9252

Question 1 Report

A manufacturer is selecting a material for a component that will be exposed to salt water and carry a moderate load.

Explain three properties the material must have and name a suitable material. [3]

Answer Details

The material needs properties that match both the environment and the loading.

  1. It must have corrosion resistance, because salt water attacks many metals rapidly [1].
  2. It needs adequate strength and stiffness to carry the moderate load without needing an excessively large cross-section [1].
  3. A suitable material is marine-grade stainless steel [1]. An anodised aluminium alloy or a glass-reinforced polymer would also be suitable.

For full marks, link each named property to the requirement rather than simply listing material properties.

Read lesson note on Selection Of Materials Or Components (OxfordAQA)
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