Solve this multiple-choice question and choose the correct option.

Concept Cast irons, including white cast iron, characteristically have high compressive strength and low tensile strength. White cast iron has cementite networks that make it hard and brittle, leading to very poor tensile ductility and strength but good compressive capacity. ThereforeThe statement reverses the usual trend and is incorrect. Final AnswerFalse

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Cast irons: evaluate the statement about white cast iron's tensile and compressive strengths White cast iron has a high tensile strength and a low compressive strength. Decide whether this statement is correct or incorrect and select the best option.

Difficulty: Easy

True
False
Partly true: properties depend only on cooling rate
Cannot be determined without composition

Correct Answer: False

Explanation:

Concept

Cast irons, including white cast iron, characteristically have high compressive strength and low tensile strength.
White cast iron has cementite networks that make it hard and brittle, leading to very poor tensile ductility and strength but good compressive capacity.

ThereforeThe statement reverses the usual trend and is incorrect.

Final AnswerFalse

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