Power Engineering - 2A2 (Chapter 5)
Metalurgy Exam 2025 Questions and
Answers
What is metallurgy? - CORRECT ANSWER✔️✔️-The study of metals
What are the three groups of metallurgy? - CORRECT ANSWER✔️✔️-Extractive
Mechanical
Physical
What is extractive metallurgy? - CORRECT ANSWER✔️✔️-The study of the extraction and
purification of metals from their ores.
What are the 3 types of extractive metallurgy? - CORRECT ANSWER✔️✔️-Pyrometallurgy -
Melting the ore in a furnace to release the metal.
Hydrometallurgy - Dissolving the metal from the ore and recovering it as a powder.
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1
,Electrometallurgy - Dissolving the metal from the ore with the use of electricity, plate the metal out
of solution.
What is mechanical metallurgy? - CORRECT ANSWER✔️✔️-The study of the techniques and
mechanical forces that shape and make the finished forms of metal.
What is physical metallurgy? - CORRECT ANSWER✔️✔️-The study of the structure of metals.
the transition when atomic structure is heated to the point it becomes liquid - CORRECT
ANSWER✔️✔️-Latent heat of Fusion
What are the three basic structures of unit cells formed when metals solidify at their freezing point? -
CORRECT ANSWER✔️✔️-Face-Centered Cubic (FCC) Structure
Body-Centered Cubic (BCC) Structure
Close Packed Hexagonal (CPH) Structure
What are the characteristics of FCC structures? What are examples? - CORRECT ANSWER✔️✔️-
There are 14 atoms
High ductility
Low shear
Low tensile strength
Good thermal and electrical conductivity
Gold, aluminum, silver, lead, nickel, and gamma iron (910 to 1390)
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
, What are the characteristics of BCC structures? What are examples? - CORRECT ANSWER✔️✔️-
There are 9 atoms
High strength
Low ductility
Very resistant to shear deformities
Chrome, tungsten, moly, vana, alpha iron (below 910) & Delta iron (above 1390)
What are the characteristics of CPH structures? What are examples? - CORRECT
ANSWER✔️✔️-There are 17 atoms
Intermediate strength and ductility
Zinc, magnesium, cadmium, titanium
What can the structure of metals tell us? - CORRECT ANSWER✔️✔️-They are related to the
properties of the metals
How can the structure of metals be changed? - CORRECT ANSWER✔️✔️-By modifying the
chemical composition, alloys and heat treatments.
Metals with more desirable and useful properties can be created.
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 3
Metalurgy Exam 2025 Questions and
Answers
What is metallurgy? - CORRECT ANSWER✔️✔️-The study of metals
What are the three groups of metallurgy? - CORRECT ANSWER✔️✔️-Extractive
Mechanical
Physical
What is extractive metallurgy? - CORRECT ANSWER✔️✔️-The study of the extraction and
purification of metals from their ores.
What are the 3 types of extractive metallurgy? - CORRECT ANSWER✔️✔️-Pyrometallurgy -
Melting the ore in a furnace to release the metal.
Hydrometallurgy - Dissolving the metal from the ore and recovering it as a powder.
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 1
,Electrometallurgy - Dissolving the metal from the ore with the use of electricity, plate the metal out
of solution.
What is mechanical metallurgy? - CORRECT ANSWER✔️✔️-The study of the techniques and
mechanical forces that shape and make the finished forms of metal.
What is physical metallurgy? - CORRECT ANSWER✔️✔️-The study of the structure of metals.
the transition when atomic structure is heated to the point it becomes liquid - CORRECT
ANSWER✔️✔️-Latent heat of Fusion
What are the three basic structures of unit cells formed when metals solidify at their freezing point? -
CORRECT ANSWER✔️✔️-Face-Centered Cubic (FCC) Structure
Body-Centered Cubic (BCC) Structure
Close Packed Hexagonal (CPH) Structure
What are the characteristics of FCC structures? What are examples? - CORRECT ANSWER✔️✔️-
There are 14 atoms
High ductility
Low shear
Low tensile strength
Good thermal and electrical conductivity
Gold, aluminum, silver, lead, nickel, and gamma iron (910 to 1390)
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 2
, What are the characteristics of BCC structures? What are examples? - CORRECT ANSWER✔️✔️-
There are 9 atoms
High strength
Low ductility
Very resistant to shear deformities
Chrome, tungsten, moly, vana, alpha iron (below 910) & Delta iron (above 1390)
What are the characteristics of CPH structures? What are examples? - CORRECT
ANSWER✔️✔️-There are 17 atoms
Intermediate strength and ductility
Zinc, magnesium, cadmium, titanium
What can the structure of metals tell us? - CORRECT ANSWER✔️✔️-They are related to the
properties of the metals
How can the structure of metals be changed? - CORRECT ANSWER✔️✔️-By modifying the
chemical composition, alloys and heat treatments.
Metals with more desirable and useful properties can be created.
FOR STUDY PURPOSES ONLY COPYRIGHT © 2025 ALL RIGHTS RESERVED 3
