Materials And Construction MCQ Questions & Answers | Chemical Engineering Page-1 section-6

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1.
Which metal is protected by the layer of its own oxide?

A. Iron

B. Silver

C. Calcium

D. Aluminium

A. Aluminium

B. High silicon (14%) iron

C. Duralumin

D. Phosphor bronze

A. For producing zinc base die casting alloys

B. In its oxide form as pigments

C. As anode for corrosion prevention in boiler

D. As an alloying element in various bronzes