Answer: Cyclic loading and corrosion
Answer: Cavitation corrosion
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Answer: Reduction reaction
Answer: all of the above
Answer: Flame hardening
Answer: Gross Man's method
Answer: Both a. and b.
Answer: Tempering
Answer: Bainite transformation
1. It is soft and ductile
2. It is allotropic in nature
3. It is magnetic above curie temperature
4. Below the temperature of 1539 oC, iron is in liquid state
Answer: 1 and 2
Answer: 210 oC
Answer: Cementite
Answer: is face centered cubic structure
Answer: Thermal arrest
Answer: Liberated heat increases temperature of an under cooled liquid metal during nucleation
Answer: Bright field illumination
Answer: impurities in a metal
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