1. soft on surface
2. machined freely
3. highly resistance to wear
4. all of these
highly resistance to wear
1. chilled cast iron
2. grey cast iron
3. malleable cast iron
4. nodular cast iron
malleable cast iron
1. chilled cast iron
2. grey cast iron
3. malleable cast iron
4. nodular cast iron
nodular cast iron
1. Chilled cast iron
2. grey cast iron
3. malleable cast iron
4. nodular cast iron
grey cast iron
1. White cast iron
2. Grey cast iron
3. Molten cast iron
4. None of these
Grey cast iron
1. Brittleness
2. Low ductility
3. Low compressive strength
4. All of these
Low ductility
1. White cast iron
2. Grey cast iron
3. Molten cast iron
4. None of these
White cast iron
1. Aluminum oxide
2. Vanadium
3. Ceramics
4. Tungsten oxide
Tungsten oxide
1. Harder
2. Softer
3. Same
4. None of these
Softer
1. Is ductile
2. Can be easily forged or welded
3. Cannot resist sudden and excessive shocks
4. All of these
All of these