(a) Diamond is used as an abrasive. (b) Al alloy are used to make aircraft body.
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Answer a -Because diamonds are very hard,they are often usedas an abrasive. Most industrialdiamonds are used for these purposes. Small particles of diamondare embedded in saw blades, drill bitsand grinding wheels for the purpose of cutting, drilling or grinding hard materials.
Answer b - Because Aluminium alloys are widely used in engineering structures and components where light weight or corrosion resistance is required. Alloys composed mostly of aluminium have been very important in aerospace manufacturing since the introduction of metal-skinned aircraft.
Answer b - Because Aluminium alloys are widely used in engineering structures and components where light weight or corrosion resistance is required. Alloys composed mostly of aluminium have been very important in aerospace manufacturing since the introduction of metal-skinned aircraft.
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