Correct Answer : Option (B) : Nickel and Tin
Explanation : Magnalium, although considered an aluminum alloy, may contain over 50% magnesium and small amounts of nickel and tin. They are commonly used for engineering applications and pyrotechnics.
Correct Answer : 88% tin, 4% copper and 8% antimony
Correct Answer : Coarse pearlite
Explanation : Hypoeutectoid steels are heated above the A3 line and then cooled in the furnace. Then it removed from the furnace and then cooled at room temperature. This results in coarse pearlite with excess ferrite.
Correct Answer : is more ductile and has a less tendency to distort during heat treatment
