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Mechanical Engineering
MEDIUM
ENGLISH
Mechanical Engineering
White cast iron__________________?
A
contains 1.7 to 3.5% carbon in free state and is obtained by the slow cooling of molten cast iron
Option A
is also known as chilled cast iron and is obtained by cooling rapidly. It is almost unmachinable
Correct answer
C
is produced by annealing process. It is soft, tough and easily machined metal
Option C
D
is produced by small additions of magnesium (or creium) in the ladle. Graphite is in nodular or spheroidal form and is well dispersed throughout the material
Option D
Correct answer: B
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