The correct sequence for descending order of machinability is ________?
Awrought iron,low carbon steel, grey cast iron
Bgrey cast iron, low carbon steel, wrought iron
Cgrey cast iron, wrought iron, low carbon steel
Dlow carbon steel, grey cast iron, wrought iron
Ewrought iron, grey cast iron, low carbon steel
Correct answer
B. grey cast iron, low carbon steel, wrought iron
Explanation
The correct answer is grey cast iron, low carbon steel, wrought iron.