Composition or use of an alloy (nichrome, brass, stainless steel)

This type of question, asked 3 times: 15 May 2023 S1, 15 May 2023 S2, 19 Apr 2026 S1. All 3 questions below, oldest first.

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Question 1
15 May 2023 S1
54 $Identify the alloy used for construction of gas turbine engines.$
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Question 2
15 May 2023 S2
65 $Which of the following alloys is used in construction of outer fuselage of ultra-high speed aircraft?$
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Question 3
19 Apr 2026 S1
33 $Identify metals present in brass.$
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