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Which of the following materials is/are used for blast nozzles in aerospace?(a) Aluminum oxide and cemented tungsten carbide(b) Aluminum oxide cemented tungsten carbide and boron carbide(c) Cemented tungsten carbide only(d) Aluminum oxide and boron carbideI got this question in an internship interview.My query is from Environments topic in portion Other Environments of Corrosion Engineering

Answer»

Correct option is (b) Aluminum OXIDE cemented TUNGSTEN carbide and boron carbide

Easy explanation: Aluminum oxide, cemented tungsten carbide, and boron carbide is the materials that are USED for blast nozzles in aerospace. These materials are also known as REFRACTORY materials.



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