MSE 250 - Ch15 Phase Diagram IV
(Steel Heat-Treatment) - Exam 3 Exam
Questions With 100% Verified Answers
1. Steel phase transformations require __ to occur.
a. time
b. mass
c. pressure
d. volume
e. none of the above -
correct answer ✅a. time
2. The phase transformation of austenite to pearlite is __
controlled.
a. mass
b. diffusion
c. space
d. pressure
e. none of the above -
correct answer ✅b. diffusion
,MSE 250 - Ch15 Phase Diagram IV
(Steel Heat-Treatment) - Exam 3 Exam
Questions With 100% Verified Answers
3. Time and temperature affect the __ during phase
transformations.
a. elements that form
b. transmutation that occurs
c. transformation rate
d. transmutation rate
e. none of the above -
correct answer ✅c. transformation rate
4. The __ diagram can be used to predict the types of
microstructures that are formed when an alloy is heat-treated.
a. phase
b. microstructure
c. alloy transformation
d. isothermal transformation
e. none of the above -
correct answer ✅d. isothermal transformation
,MSE 250 - Ch15 Phase Diagram IV
(Steel Heat-Treatment) - Exam 3 Exam
Questions With 100% Verified Answers
5. Non-equilibrium microstructures that are formed below the
eutectoid temperature can be predicted using __ diagrams.
a. phase
b. microstructure
c. alloy transformation
d. isothermal transformation
e. none of the above -
correct answer ✅d. isothermal transformation
6. Non-equilibrium microstructures can be correlated to the __
properties of steels.
a. electrical
b. isothermal
c. mechanical
d. isopressure
, MSE 250 - Ch15 Phase Diagram IV
(Steel Heat-Treatment) - Exam 3 Exam
Questions With 100% Verified Answers
e. none of the above -
correct answer ✅c. mechanical
7. To quench a steel means to __ it __.
a. cool; rapidly
b. heat; rapidly
c. cool; slowly
d. heat; slowly
e. none of the above -
correct answer ✅a. cool; rapidly
8. Blacksmiths quench heated horse-shoes in water, in order to
make the horse-shoe __.
a. soft
b. ductile
c. brittle
d. hard
(Steel Heat-Treatment) - Exam 3 Exam
Questions With 100% Verified Answers
1. Steel phase transformations require __ to occur.
a. time
b. mass
c. pressure
d. volume
e. none of the above -
correct answer ✅a. time
2. The phase transformation of austenite to pearlite is __
controlled.
a. mass
b. diffusion
c. space
d. pressure
e. none of the above -
correct answer ✅b. diffusion
,MSE 250 - Ch15 Phase Diagram IV
(Steel Heat-Treatment) - Exam 3 Exam
Questions With 100% Verified Answers
3. Time and temperature affect the __ during phase
transformations.
a. elements that form
b. transmutation that occurs
c. transformation rate
d. transmutation rate
e. none of the above -
correct answer ✅c. transformation rate
4. The __ diagram can be used to predict the types of
microstructures that are formed when an alloy is heat-treated.
a. phase
b. microstructure
c. alloy transformation
d. isothermal transformation
e. none of the above -
correct answer ✅d. isothermal transformation
,MSE 250 - Ch15 Phase Diagram IV
(Steel Heat-Treatment) - Exam 3 Exam
Questions With 100% Verified Answers
5. Non-equilibrium microstructures that are formed below the
eutectoid temperature can be predicted using __ diagrams.
a. phase
b. microstructure
c. alloy transformation
d. isothermal transformation
e. none of the above -
correct answer ✅d. isothermal transformation
6. Non-equilibrium microstructures can be correlated to the __
properties of steels.
a. electrical
b. isothermal
c. mechanical
d. isopressure
, MSE 250 - Ch15 Phase Diagram IV
(Steel Heat-Treatment) - Exam 3 Exam
Questions With 100% Verified Answers
e. none of the above -
correct answer ✅c. mechanical
7. To quench a steel means to __ it __.
a. cool; rapidly
b. heat; rapidly
c. cool; slowly
d. heat; slowly
e. none of the above -
correct answer ✅a. cool; rapidly
8. Blacksmiths quench heated horse-shoes in water, in order to
make the horse-shoe __.
a. soft
b. ductile
c. brittle
d. hard
