Question

When magnisum metal is combined with aluminium, zinc, copper and manganese, we get a light, hard alloy called electrum, which is used for making :

• A. plates for light ships
• B. pressure cookers
• C. propellers of engines and aircraft
• D. weights for measuring gold

Answer 1

The correct option is C propellers of engines and aircraft

Electrum is a metal alloy mainly consisting of magnesium,aluminium,copper and traces of some other metals. This naturally occurring alloy has a long history of being used for making coins, vessels and also for coatings.

It is also used for making propellers of engines and aircraft.