1. Describe and give examples of isotope. 2. How can material modulus of elastic

Question

1. Describe and give examples of isotope.
2. How can material modulus of elasticity be determined from stress-strain data? Explain
3. Calculate the elongation of a 1.0 in3 steel AISI 1040 under a tensile load of 20,000 lb (E= 30,000,000 psi)
4. Explain ductility and what is the influence of carbon on the ductility of steel
5. What is toughness
6. Explain covalent bond
7. Explain Metallic bond and what important property derives from it in metals
8. Describe the theory used for the IZOD test and what units are used to report toughness
9. Explain the change in magnetic properties when steel is heated. Is this due to allotropic properties?
10. What is the shape factor
11. Explain the difference between wear and erosion and give an example of each
12. Explain the effect of fillers in altering polymer properties
13. What are some of the main differences between thermoplastics and thermosets
14. Explain glass transition temperature
15. What are main ingredients used in making Pig Iron and how is the oxygen removed
16. Explain the phase diagram’s triple point
17. Explain the purpose of the Jominy test
18. What is pearlite? Give some of the properties
19. Where is the critical cooling rate on the S curves
20. What is pack carburizing
1. Describe and give examples of isotope.
2. How can material modulus of elasticity be determined from stress-strain data? Explain
3. Calculate the elongation of a 1.0 in3 steel AISI 1040 under a tensile load of 20,000 lb (E= 30,000,000 psi)
4. Explain ductility and what is the influence of carbon on the ductility of steel
5. What is toughness
6. Explain covalent bond
7. Explain Metallic bond and what important property derives from it in metals
8. Describe the theory used for the IZOD test and what units are used to report toughness
9. Explain the change in magnetic properties when steel is heated. Is this due to allotropic properties?
10. What is the shape factor
11. Explain the difference between wear and erosion and give an example of each
12. Explain the effect of fillers in altering polymer properties
13. What are some of the main differences between thermoplastics and thermosets
14. Explain glass transition temperature
15. What are main ingredients used in making Pig Iron and how is the oxygen removed
16. Explain the phase diagram’s triple point
17. Explain the purpose of the Jominy test
18. What is pearlite? Give some of the properties
19. Where is the critical cooling rate on the S curves
20. What is pack carburizing
1. Describe and give examples of isotope.
2. How can material modulus of elasticity be determined from stress-strain data? Explain
3. Calculate the elongation of a 1.0 in3 steel AISI 1040 under a tensile load of 20,000 lb (E= 30,000,000 psi)
4. Explain ductility and what is the influence of carbon on the ductility of steel
5. What is toughness
6. Explain covalent bond
7. Explain Metallic bond and what important property derives from it in metals
8. Describe the theory used for the IZOD test and what units are used to report toughness
9. Explain the change in magnetic properties when steel is heated. Is this due to allotropic properties?
10. What is the shape factor
11. Explain the difference between wear and erosion and give an example of each
12. Explain the effect of fillers in altering polymer properties
13. What are some of the main differences between thermoplastics and thermosets
14. Explain glass transition temperature
15. What are main ingredients used in making Pig Iron and how is the oxygen removed
16. Explain the phase diagram’s triple point
17. Explain the purpose of the Jominy test
18. What is pearlite? Give some of the properties
19. Where is the critical cooling rate on the S curves
20. What is pack carburizing

Explanation / Answer

1. The isotope of an element can be described as the atoms of the same element with same no. of protons (Z), but different no. of neutrons (N) as well as mass no. (A), where N = A-Z.

Examples:

1. 10B, 11B

2. 12C and 13C

3. 14N, 15N

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