Engineering Materials
Perminvar alloy having constant permeability is an alloy of

Iron, zinc and bismuth
Copper, nickel and antimony
Nickel, copper and zinc
Nickel, copper and iron

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
A coarse grained steel

Is less tough and has a greater tendency to distort during heat treatment
Is less tough and has a less tendency to distort during heat treatment
Is more ductile and has a greater tendency to distort during heat treatment
Is more ductile and has a less tendency to distort during heat treatment

ANSWER DOWNLOAD EXAMIANS APP