Question

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Answer 1

Answer:

3 2 4 1

Explanation:

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Answer 2

Answer:

Stainless-steel - chromium, nickel, silicon, manganese, nitrogen and carbon.

Nickel Steel- this material contains 25 per cent, of nickel and about 74 per cent, of iron, and over a range of temperature from something below freezing to 580° C. it can exist in two states, magnetic and non-magnetic.

Alnico Instruments - Alnico is an alloy made mainly from a combination of Aluminium, Nickel, Cobalt and Iron plus varying levels of Copper, Titanium and Niobium.

invar Steel permanent magnet - Like other nickel/iron compositions, Invar is a solid solution; that is, it is a single-phase alloy, consisting of around 36% nickel and 64% iron.

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Since all the Options were Not visible I have Written the Composition of the Following Items

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