Engineering Materials
Brass contains

70 - 75% copper and rest tin
85 - 92% copper and rest tin with little lead and nickel
70% copper and 30% zinc
90% copper and 10% tin

ANSWER DOWNLOAD EXAMIANS APP

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
None of these
Heated below the lower critical temperature and then cooled slowly
Heated up to the lower critical temperature and then cooled in still air

ANSWER DOWNLOAD EXAMIANS APP