The increase in hardness of metal due to its cold working is termed as the _______________ hardening?

A. White cast
B. Grey cast
C. Wrought
D. None of these

A. Tensile
B. Compressive
C. Fluctuating
D. None of these

A. Copper
B. Copper alloys
C. Stainless steel
D. Monel

A. Non-crystalline solid
B. Crystalline
C. Rubbery
D. Non-crystalline organic polymeric

A. Hastelloy
B. Duriron
C. Monel
D. Inconel