MCE132 Metallic Materials: Introduction Quiz

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What is the definition of a metal?

A compound with metallic bonds

An element with four valence electrons

An element with no valence electrons

An element with one, two, or three valence electrons (correct)

What is the term for the regular three-dimensional geometric pattern of atoms in a metal?

Crystal lattice

Unit cell (correct)

Atomic arrangement

Molecular lattice

How are metallic solids formed?

By cooling a mass of molten material (correct)

By sublimation

By crystallization

By condensation

What can the vibrating atoms during cooling cause within the lattice structure?

Defect in the lattice structure Signup and view all the answers

What forms between grains as crystals grow during cooling?

Boundary Signup and view all the answers

How do flaws or slip planes in the structure affect the characteristics and properties of materials?

They have a negative impact Signup and view all the answers

What is the classification of defects in the crystal structure of metallic materials?

Point defects, line defects, area defects, and volume defects Signup and view all the answers

What is the coordination number for Face Centered Cubic (FCC) and Hexagonal Close Pack (HCP) structures?

12 Signup and view all the answers

Which lattice structure has one atom on each corner of the cube and one in the center of the cube?

Body Centered Cubic (BCC) Signup and view all the answers

What is the atomic packing factor (APF) for a lattice structure if the volume of atoms in the unit cell is 500 and the total unit cell volume is 1000?

$0.25$ Signup and view all the answers

How many equivalent atoms are there in a Body Centered Cubic (BCC) structure?

$2$ Signup and view all the answers

What is the classification of lattice structures described for metals in the text?

Cubic and Hexagonal Signup and view all the answers

Which lattice structure has top and bottom layers with atoms at each corner of the hexagonal and an atom in the center of the top and bottom planes, in addition to three atoms in the center of the plane?

Hexagonal Close Pack (HCP) Signup and view all the answers

What is the term for the boundary that forms between grains as crystals grow during the cooling of metallic solids?

Grain boundary Signup and view all the answers

What can the vibrating atoms during cooling cause within the lattice structure of metallic solids?

Vacancy Signup and view all the answers

What is the classification of lattice structures described for metals in the text?

Body Centered Cubic (BCC) and Face Centered Cubic (FCC) Signup and view all the answers

How do flaws or slip planes in the structure affect the characteristics and properties of metallic materials?

Decrease strength Signup and view all the answers

What is the term for the regular three-dimensional geometric pattern of atoms in a metal?

Lattice structure Signup and view all the answers

Which lattice structure has one atom on each corner of the cube and one in the center of the cube?

Body Centered Cubic (BCC) Signup and view all the answers

What is the classification of lattice structures described for metals in the text?

Cubic and hexagonal structures Signup and view all the answers

What is the coordination number for Body Centered Cubic (BCC) structures?

8 Signup and view all the answers

Which lattice structure has top and bottom layers with atoms at each corner of the hexagonal and an atom in the center of the top and bottom planes, in addition to three atoms in the center of the plane?

Hexagonal close pack (HCP) Signup and view all the answers

What is the atomic packing factor (APF) for Face Centered Cubic (FCC) structures if the volume of atoms in the unit cell is 500 and the total unit cell volume is 1000?

$0.74$ Signup and view all the answers

What are the two important characteristics of the crystalline structure mentioned in the text?

Coordination number and atomic packing factor Signup and view all the answers

What is the equivalent number of atoms in a Simple Cubic lattice structure?

$1$ Signup and view all the answers

What is the classification of defects in the crystal structure of metallic materials?

Dislocations and vacancies Signup and view all the answers

What does BCC structure have the equivalent of in terms of atoms?

$2$ atoms Signup and view all the answers

What is the term for the regular three-dimensional geometric pattern of atoms in a metal?

Lattice structure Signup and view all the answers

What is the characteristic of Face Centered Cubic (FCC) and Hexagonal Close Pack (HCP) structures?

Coordination number 12 Signup and view all the answers

MCE132 Metallic Materials: Introduction Quiz

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Questions and Answers

What is the definition of a metal?

What is the term for the regular three-dimensional geometric pattern of atoms in a metal?

How are metallic solids formed?

What can the vibrating atoms during cooling cause within the lattice structure?

What forms between grains as crystals grow during cooling?

How do flaws or slip planes in the structure affect the characteristics and properties of materials?

What is the classification of defects in the crystal structure of metallic materials?

What is the coordination number for Face Centered Cubic (FCC) and Hexagonal Close Pack (HCP) structures?

Which lattice structure has one atom on each corner of the cube and one in the center of the cube?

What is the atomic packing factor (APF) for a lattice structure if the volume of atoms in the unit cell is 500 and the total unit cell volume is 1000?

How many equivalent atoms are there in a Body Centered Cubic (BCC) structure?

What is the classification of lattice structures described for metals in the text?

Which lattice structure has top and bottom layers with atoms at each corner of the hexagonal and an atom in the center of the top and bottom planes, in addition to three atoms in the center of the plane?

What is the term for the boundary that forms between grains as crystals grow during the cooling of metallic solids?

What can the vibrating atoms during cooling cause within the lattice structure of metallic solids?

What is the classification of lattice structures described for metals in the text?

How do flaws or slip planes in the structure affect the characteristics and properties of metallic materials?

What is the term for the regular three-dimensional geometric pattern of atoms in a metal?

Which lattice structure has one atom on each corner of the cube and one in the center of the cube?

What is the classification of lattice structures described for metals in the text?

What is the coordination number for Body Centered Cubic (BCC) structures?

Which lattice structure has top and bottom layers with atoms at each corner of the hexagonal and an atom in the center of the top and bottom planes, in addition to three atoms in the center of the plane?

What is the atomic packing factor (APF) for Face Centered Cubic (FCC) structures if the volume of atoms in the unit cell is 500 and the total unit cell volume is 1000?

What are the two important characteristics of the crystalline structure mentioned in the text?

What is the equivalent number of atoms in a Simple Cubic lattice structure?

What is the classification of defects in the crystal structure of metallic materials?

What does BCC structure have the equivalent of in terms of atoms?

What is the term for the regular three-dimensional geometric pattern of atoms in a metal?

What is the characteristic of Face Centered Cubic (FCC) and Hexagonal Close Pack (HCP) structures?

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