Q1] ( Q2] Q3] Notes: Attempt All Total Answer with true (T) or false (F), corrects the wrong phrases, and gives short reasons for correct and corrected statements: 1- Manganese is the most important alloying element in steel after carbo 2- The machinability of cooled working steel enhanced by spheroidization. 3- lead improves machining characteristics of copper 4- All superalloys contain a small amount of carbon 5- The elongation of brass will increase as the zinc content increases Complete the following statements: 1- The main difference between isothermal transformation and continuous cooling diagrams are , and 2- The age hardened stainless steels have elements such as or which form strengthening precipitates when the material is heated to moderately elevated temperatures. 3- The disadvantages of beryllium include .br ..., and.......... 4- The precious metals include ..... 5- Monels are used for their strength and corrosion resistance in Select the most suitable answer 1- The stable form of iron at room temperature, is: and and a) 8- iron with BCC b) y-iron with FCC c) y -iron with BCC d) Not given 2- low temperature impact properties of low carbon steel will be improved by: a) Grain coarsening b) Fully killed c) Lowering Mn-C ratio d) All of these 3- Continuous air cooling of pre-heated hyper-eutectoid steel sample, resulting a microstructure consist of: a) Pearlite+Bainite b) Pearlite+Martensite c) Pearlite+Cementite d) Pearlite+ferrite 4- The lowest amount of carbon can be found in which of the following stainless steels: b) 410 c) 202 d) 316L a) 304 5- The property of a material that can't be significantly changed by heat treatment is: a) Elastic modulus b) Yield strength c) Ultimate tensile strength 6- For precipitation hardening, the alloy should exhibit: a) Decreasing solid solubility with increasing temperature b) Increasing solid solubility with decreasing temperature c) Complete solid solubility at both high and low temperatures d) Eutectic reaction 7- The symbol (W) in aluminium alloys means that the alloy was a) Age hardened b) Annealed 8- The composition axis in iron carbon phase a) 1.7 wt % C b) 4.3 wt % C 9- The corrosion resistance of magnesium is a) Higher than c) Cold worked diagram extends to c) 6.70 wt % C b) Lower than c) Same as to d) Elongation percentage d) All of these d) 100 wt % C that of aluminum d) can not be compared to 10-To increasing the creep resistance of nickel base superalloys the added alloying element can produce a) Solid-solution strengthening b) dispersion strengthening c) precipitation hardening d) all of these
Q1] ( Q2] Q3] Notes: Attempt All Total Answer with true (T) or false (F), corrects the wrong phrases, and gives short reasons for correct and corrected statements: 1- Manganese is the most important alloying element in steel after carbo 2- The machinability of cooled working steel enhanced by spheroidization. 3- lead improves machining characteristics of copper 4- All superalloys contain a small amount of carbon 5- The elongation of brass will increase as the zinc content increases Complete the following statements: 1- The main difference between isothermal transformation and continuous cooling diagrams are , and 2- The age hardened stainless steels have elements such as or which form strengthening precipitates when the material is heated to moderately elevated temperatures. 3- The disadvantages of beryllium include .br ..., and.......... 4- The precious metals include ..... 5- Monels are used for their strength and corrosion resistance in Select the most suitable answer 1- The stable form of iron at room temperature, is: and and a) 8- iron with BCC b) y-iron with FCC c) y -iron with BCC d) Not given 2- low temperature impact properties of low carbon steel will be improved by: a) Grain coarsening b) Fully killed c) Lowering Mn-C ratio d) All of these 3- Continuous air cooling of pre-heated hyper-eutectoid steel sample, resulting a microstructure consist of: a) Pearlite+Bainite b) Pearlite+Martensite c) Pearlite+Cementite d) Pearlite+ferrite 4- The lowest amount of carbon can be found in which of the following stainless steels: b) 410 c) 202 d) 316L a) 304 5- The property of a material that can't be significantly changed by heat treatment is: a) Elastic modulus b) Yield strength c) Ultimate tensile strength 6- For precipitation hardening, the alloy should exhibit: a) Decreasing solid solubility with increasing temperature b) Increasing solid solubility with decreasing temperature c) Complete solid solubility at both high and low temperatures d) Eutectic reaction 7- The symbol (W) in aluminium alloys means that the alloy was a) Age hardened b) Annealed 8- The composition axis in iron carbon phase a) 1.7 wt % C b) 4.3 wt % C 9- The corrosion resistance of magnesium is a) Higher than c) Cold worked diagram extends to c) 6.70 wt % C b) Lower than c) Same as to d) Elongation percentage d) All of these d) 100 wt % C that of aluminum d) can not be compared to 10-To increasing the creep resistance of nickel base superalloys the added alloying element can produce a) Solid-solution strengthening b) dispersion strengthening c) precipitation hardening d) all of these
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.2P: 5.2 Evaluate the Prandtl number from the following data: , .
Related questions
Question
Solve this question pl
![Q1] (
Q2]
Q3]
Notes: Attempt All
Total
Answer with true (T) or false (F), corrects the wrong phrases, and gives short reasons for
correct and corrected statements:
1- Manganese is the most important alloying element in steel after carbo
2- The machinability of cooled working steel enhanced by spheroidization.
3- lead improves machining characteristics of copper
4- All superalloys contain a small amount of carbon
5- The elongation of brass will increase as the zinc content increases
Complete the following statements:
1- The main difference between isothermal transformation and continuous cooling diagrams are
, and
2- The age hardened stainless steels have elements such as or which form
strengthening precipitates when the material is heated to moderately elevated temperatures.
3- The disadvantages of beryllium include .br ..., and..........
4- The precious metals include
.....
5- Monels are used for their strength and corrosion resistance in
Select the most suitable answer
1- The stable form of iron at room temperature, is:
and
and
a) 8- iron with BCC b) y-iron with FCC c) y -iron with BCC d) Not given
2- low temperature impact properties of low carbon steel will be improved by:
a) Grain coarsening b) Fully killed c) Lowering Mn-C ratio d) All of these
3- Continuous air cooling of pre-heated hyper-eutectoid steel sample, resulting a microstructure consist of:
a) Pearlite+Bainite b) Pearlite+Martensite
c) Pearlite+Cementite d) Pearlite+ferrite
4- The lowest amount of carbon can be found in which of the following stainless steels:
b) 410
c) 202
d) 316L
a) 304
5- The property of a material that can't be significantly changed by heat treatment is:
a) Elastic modulus b) Yield strength c) Ultimate tensile strength
6- For precipitation hardening, the alloy should exhibit:
a) Decreasing solid solubility with increasing temperature
b) Increasing solid solubility with decreasing temperature
c) Complete solid solubility at both high and low temperatures
d) Eutectic reaction
7- The symbol (W) in aluminium alloys means that the alloy was
a) Age hardened
b) Annealed
8- The composition axis in iron carbon phase
a) 1.7 wt % C
b) 4.3 wt % C
9- The corrosion resistance of magnesium is
a) Higher than
c) Cold worked
diagram extends to
c) 6.70 wt % C
b) Lower than c) Same as to
d) Elongation percentage
d) All of these
d) 100 wt % C
that of aluminum
d) can not be compared to
10-To increasing the creep resistance of nickel base superalloys the added alloying element can produce
a) Solid-solution strengthening
b) dispersion strengthening
c) precipitation hardening
d) all of these](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F804f3825-0b58-4c1d-9af1-6be7261f317d%2F20946925-71c8-4bb3-b5dc-a7d5ab777b33%2Fao6q1n_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q1] (
Q2]
Q3]
Notes: Attempt All
Total
Answer with true (T) or false (F), corrects the wrong phrases, and gives short reasons for
correct and corrected statements:
1- Manganese is the most important alloying element in steel after carbo
2- The machinability of cooled working steel enhanced by spheroidization.
3- lead improves machining characteristics of copper
4- All superalloys contain a small amount of carbon
5- The elongation of brass will increase as the zinc content increases
Complete the following statements:
1- The main difference between isothermal transformation and continuous cooling diagrams are
, and
2- The age hardened stainless steels have elements such as or which form
strengthening precipitates when the material is heated to moderately elevated temperatures.
3- The disadvantages of beryllium include .br ..., and..........
4- The precious metals include
.....
5- Monels are used for their strength and corrosion resistance in
Select the most suitable answer
1- The stable form of iron at room temperature, is:
and
and
a) 8- iron with BCC b) y-iron with FCC c) y -iron with BCC d) Not given
2- low temperature impact properties of low carbon steel will be improved by:
a) Grain coarsening b) Fully killed c) Lowering Mn-C ratio d) All of these
3- Continuous air cooling of pre-heated hyper-eutectoid steel sample, resulting a microstructure consist of:
a) Pearlite+Bainite b) Pearlite+Martensite
c) Pearlite+Cementite d) Pearlite+ferrite
4- The lowest amount of carbon can be found in which of the following stainless steels:
b) 410
c) 202
d) 316L
a) 304
5- The property of a material that can't be significantly changed by heat treatment is:
a) Elastic modulus b) Yield strength c) Ultimate tensile strength
6- For precipitation hardening, the alloy should exhibit:
a) Decreasing solid solubility with increasing temperature
b) Increasing solid solubility with decreasing temperature
c) Complete solid solubility at both high and low temperatures
d) Eutectic reaction
7- The symbol (W) in aluminium alloys means that the alloy was
a) Age hardened
b) Annealed
8- The composition axis in iron carbon phase
a) 1.7 wt % C
b) 4.3 wt % C
9- The corrosion resistance of magnesium is
a) Higher than
c) Cold worked
diagram extends to
c) 6.70 wt % C
b) Lower than c) Same as to
d) Elongation percentage
d) All of these
d) 100 wt % C
that of aluminum
d) can not be compared to
10-To increasing the creep resistance of nickel base superalloys the added alloying element can produce
a) Solid-solution strengthening
b) dispersion strengthening
c) precipitation hardening
d) all of these
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