Engineering Materials
In spheroidising process, the steel is

Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C
Heated below the lower critical temperature and then cooled slowly
None of these
Heated up to the lower critical temperature and then cooled in still air

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Cyaniding is the process of

Reacting steel surface with cyanide salts
Dipping steel in cyanide bath
Obtaining cyanide salts
Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness

ANSWER DOWNLOAD EXAMIANS APP