11. Which of the following properties makes stainless steel resistant to corrosion?
a) High strength
b) Low density
c) Non-magnetic
d) High ductility
12. What is the term used to describe the process of heat-treating steel to increase its hardness and strength?
a) Tempering
b) Annealing
c) Quenching
d) Normalizing
13. Which of the following is a common alloying element in steel?
a) Nickel
b) Zinc
c) Silver
d) Mercury
14. What is the term used to describe the measure of a material’s ability to resist deformation under tensile stress?
a) Elasticity
b) Ductility
c) Hardness
d) Stiffness
15. Which of the following is NOT a common quality control measure in the steel industry?
a) Non-destructive testing
b) Chemical analysis
c) Dimensional inspection
d) Tensile strength measurement
