ferrous metal Flashcards
What is a ferrous material?
a) Any metal without iron.
b) Any metal that contains iron as the main ingredient.
c) Any metal that contains copper.
d) Any metal that is non-magnetic.
b) Any metal that contains iron as the main ingredient.
What is pig iron primarily composed of?
a) Low carbon content.
b) High carbon content and silica.
c) High amounts of nickel.
d) Chromium and vanadium.
b) High carbon content and silica.
Which of the following increases steel’s hardness but decreases its malleability?
a) Silicon.
b) Carbon.
c) Nickel.
d) Phosphorous
b) Carbon.
Which of these properties refers to a metal’s ability to be drawn into wire?
a) Toughness.
b) Malleability.
c) Ductility.
d) Brittleness
c) Ductility.
Which of the following elements improves corrosion resistance and hardness in steel?
a) Sulphur.
b) Nickel.
c) Phosphorous.
d) Chromium
d) Chromium.
What does the first digit in the SAE numbering system for steel represent?
a) Percentage of carbon content.
b) Principal alloying element.
c) Heat treatment process.
d) Type of quenching method
b) Principal alloying element.
What does heat treatment do to steel?
a) Reduces its density.
b) Alters its mechanical properties, such as hardness.
c) Removes all impurities.
d) Decreases its carbon content
b) Alters its mechanical properties, such as hardness
Which type of stainless steel is non-magnetic and cannot be hardened by heat treatment?
a) Austenitic.
b) Ferritic.
c) Martensitic.
d) Chrome-molybdenum.
a) Austenitic.
Which alloying element is primarily responsible for increasing the toughness of steel?
a) Chromium.
b) Carbon.
c) Nickel.
d) Vanadium
c) Nickel.
Which phase of steel is important in the process of heat treatment and can be seen in the carbon steel phase diagram?
a) Ferrite.
b) Cementite.
c) Austenite.
d) Chromium carbide.
c) Austenite.
