Multiple Choice Question (MCQ)
Question: Which property of the cutting tool the amount of hardness possessed by a material at normal temperature?
A.
Ductility
B.
Toughness
C.
Red hardness
D.
Cold hardness
Correct Answer: Cold hardness
Explanation
There is one point on the Fahrenheit and Celsius scales where the temperatures in degrees are equal. This is -40 °C and -40 °F.