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Mechanical Engineering · Q257

Engineering Materials

Engineering and GATE · Mechanical Engineering · question 257

Q257

Cast iron has

A.
High tensile strength
B.
Its elastic limit close to the ultimate breaking strength
Answer
C.
High ductility
D.
All of the above

Answer: Option B

Solution

Answer: Option B
Solution:
cast iron properties are listed below:
It has three to five times more compression strength compared to steel
It has Good machinability (gray cast iron)
It has excellent anti-vibration (or damping) properties hence it is used to make machine frames
It has good Sensibility
It has excellent resistance to wear
It has constant Mechanical properties between 20 to 350 degree Celsius
It has very low notch sensitivity
It has Low stress concentration
It bears Low cost
It is Durability
It has Resistance to deformation