Duralumin alloy contains aluminium and copper in the ratio of:

1.	Duralumin alloy contains aluminium and copper in the ratio of:
A.	% AI % Cu 94 4
B.	% AI % Cu 90 8
C.	% AI % Cu 88 10
D.	% AI % Cu 86 12
Answer» B. % AI % Cu 90 8

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Duralumin alloy contains aluminium and copper in the ratio of:

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