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Mechanical Engineering Mcqs
Q
Grey cast iron_____________________?
AA. Contains 1.7 to 3.5% carbon in free state and is obtained by the slow cooling of molten cast iron
BB. Is also known as chilled cast iron am is obtained by cooling rapidly. it i: almost unmachinable
CC. Is produced by annealing process. i is soft, tough and easily machinec metal
DD. 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 material
Correct Answer:
A. A. Contains 1.7 to 3.5% carbon in free state and is obtained by the slow cooling of molten cast iron
