METALLURGY EXAM 1 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+
Mechanical and nuclear engineering are generally considered to be this
type of discipline: Ans✓✓✓Design engineering
Materials engineering is generally considered to be this type of
discipline: Ans✓✓✓Support engineering
The activity sequence for manufactured products generally begins with:
Ans✓✓✓Design
The Met 2110 course will focus on this stage of the manufacturing
sequence: Ans✓✓✓Material selection
These materials exhibit both good strength and good ductility
(formability) Ans✓✓✓Metals
These materials are generally hard and strong, but also brittle.
Ans✓✓✓Ceramics
These materials offer good electrical and thermal conductivity.
Ans✓✓✓Metals
,These materials typically have the lowest strength, but are light weight.
Ans✓✓✓Polymers
These materials can provide electrical & thermal insulation at high
operating temperatures. Ans✓✓✓Ceramics
These materials are often called "plastics". Ans✓✓✓Polymers
These materials would be the least suitable for use at elevated
temperatures. Ans✓✓✓Polymers
In this type of bonding, the valence electrons are free to "wander"
throughout the structure (high conductivity). Ans✓✓✓Metallic
This is the weakest of the four types of bonding. Ans✓✓✓VanderWaals
Two different types of atoms (an electron donor and an electron
receiver) are required in this type of bonding. Ans✓✓✓Ionic
The bonds between carbon-carbon and carbon-hydrogen (common
within polymers) are of this type. Ans✓✓✓Covalent
Materials bonded by this type of bond can exhibit both high strength and
high ductility. Ans✓✓✓Metallic
, The restricted number of "neighbors" leads to directional bonding and
low densities in this type of bonding. Ans✓✓✓Covalent
When a magnesium atom gives up two electrons to an oxygen atom,
resulting in the formation of MgO, the type of atomic bonding must be:
Ans✓✓✓Ionic
In this type of bonding, the bonding electrons are "captive to atoms"
(low conductivity). Ans✓✓✓Ionic
In this type of bonding, the bonding is between molecules, not between
atoms. Ans✓✓✓VanderWaals
A collection of ordered points in space is called a ___. Ans✓✓✓Lattice
The smallest volume of a lattice that retains all of its characteristics is
called the: Ans✓✓✓Unit Cell
The number of immediately adjacent (i.e. touching) atoms to a given
atom is called the: Ans✓✓✓Coordination number
The efficiency of filling available space (% occupied) can be evaluated
by computing the: Ans✓✓✓Packing factor
DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+
Mechanical and nuclear engineering are generally considered to be this
type of discipline: Ans✓✓✓Design engineering
Materials engineering is generally considered to be this type of
discipline: Ans✓✓✓Support engineering
The activity sequence for manufactured products generally begins with:
Ans✓✓✓Design
The Met 2110 course will focus on this stage of the manufacturing
sequence: Ans✓✓✓Material selection
These materials exhibit both good strength and good ductility
(formability) Ans✓✓✓Metals
These materials are generally hard and strong, but also brittle.
Ans✓✓✓Ceramics
These materials offer good electrical and thermal conductivity.
Ans✓✓✓Metals
,These materials typically have the lowest strength, but are light weight.
Ans✓✓✓Polymers
These materials can provide electrical & thermal insulation at high
operating temperatures. Ans✓✓✓Ceramics
These materials are often called "plastics". Ans✓✓✓Polymers
These materials would be the least suitable for use at elevated
temperatures. Ans✓✓✓Polymers
In this type of bonding, the valence electrons are free to "wander"
throughout the structure (high conductivity). Ans✓✓✓Metallic
This is the weakest of the four types of bonding. Ans✓✓✓VanderWaals
Two different types of atoms (an electron donor and an electron
receiver) are required in this type of bonding. Ans✓✓✓Ionic
The bonds between carbon-carbon and carbon-hydrogen (common
within polymers) are of this type. Ans✓✓✓Covalent
Materials bonded by this type of bond can exhibit both high strength and
high ductility. Ans✓✓✓Metallic
, The restricted number of "neighbors" leads to directional bonding and
low densities in this type of bonding. Ans✓✓✓Covalent
When a magnesium atom gives up two electrons to an oxygen atom,
resulting in the formation of MgO, the type of atomic bonding must be:
Ans✓✓✓Ionic
In this type of bonding, the bonding electrons are "captive to atoms"
(low conductivity). Ans✓✓✓Ionic
In this type of bonding, the bonding is between molecules, not between
atoms. Ans✓✓✓VanderWaals
A collection of ordered points in space is called a ___. Ans✓✓✓Lattice
The smallest volume of a lattice that retains all of its characteristics is
called the: Ans✓✓✓Unit Cell
The number of immediately adjacent (i.e. touching) atoms to a given
atom is called the: Ans✓✓✓Coordination number
The efficiency of filling available space (% occupied) can be evaluated
by computing the: Ans✓✓✓Packing factor
