Engineering Materials Mcqs

Q.  Grey cast iron_____________________?

a. contains 1.7 to 3.5% carbon in free state and is obtained by the slow cooling of molten cast iron
b. is also known as chilled cast iron am is obtained by cooling rapidly. It i: almost unmachinable
c. is produced by annealing process. I is soft, tough and easily machinec metal
d. is produced by small additions o magnesium (or cerium) in the ladle Graphite is in nodular or spheroida form and is well dispersed throughout the mate
e. none of the above is true


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