Material Science Mechanical Gate Previous Year Questions

The Cast Iron which possesses all the carbon in the combined form as cementite is known as

a) Grey Cast Iron
b) Spheroidal Cast Iron
c) Malleable Cast Iron
d) White Cast Iron

Which one of the following statements about a phase diagram is INCORRECT?

a) Relative amount of different phases can be found under given equilibrium conditions
b) Solid solubility limits are depicted by it
c) It gives information on transformation rates
d) It indicates the temperature at which different phases start to melt