31. What is the term used to describe the measure of a material’s ability to resist indentation or scratching?
a) Elasticity
b) Ductility
c) Hardness
d) Stiffness
32. Which of the following is NOT a common type of steel alloy?
a) Stainless steel
b) Tool steel
c) Weathering steel
d) Zinc-coated steel
33. What is the term used to describe the process of heating steel to a high temperature and then slowly cooling it to relieve internal stresses?
a) Tempering
b) Annealing
c) Quenching
d) Normalizing
34. Which of the following is a common quality assurance measure in the steel industry?
a) Non-destructive testing
b) Chemical analysis
c) Dimensional inspection
d) All of the above
35. What is the term used to describe the process of adding alloying elements to steel to enhance its properties?
a) Refining
b) Casting
c) Alloying
d) Galvanizing
