Engineering Materials
Permalloy is a

Polymer
Nickel and iron alloy having high permeability
None ferrous alloy
Kind of stainless steel

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Smelting is the process of

All of these
Reducing the ore with carbon in the presence of a flux
Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns
Removing the impurities like clay, sand etc. from the iron ore by washing with water

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Steel contains

50% or more iron
Elements like phosphorus, sulphur and silicon in varying quantities
80% or more iron
Alloying elements like chromium, tungsten nickel and copper

ANSWER DOWNLOAD EXAMIANS APP