Name of the College : Sphoorthy Engineering College
University : JNTUH
Department : Electronics And Telematics
Subject Code/Name : 07A50802/MATERIAL SCIENCE FOR CHEMICAL ENGINEERS
Year/Sem : III/I
Website : sphoorthyengg.com
Document Type : Model Question Paper
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/sphoorthyengg.com/4869-07A50802-MATERIALSCIENCEFORCHEMICALENGINEERS.pdf
Material Science For Chemical Engineers
III B.Tech I Semester Examinations,December 2011
Time: 3 hours
Max Marks: 80
Related : Sphoorthy Engineering College Basics of Telematics B.Tech Question Paper : www.pdfquestion.in/4868.html
Answer any FIVE Questions :
All Questions carry equal marks :
1. (a) Compare edge and screw dislocations.
(b) Discuss the internal type of surface defects. [8+8]
2. Explain the following:
(a) Empirical laws of recrystallization
(b) Grain growth
(c) Super plastic behavior. [5+5+6]
3. (a) Discuss how corrosion can be reduced by bringing environmental changes.
(b) Explain half-cell reactions. [10+6]
4. What do you understand by the charge cloud of an atomic electron? Account for the fact that while the cloud density of the 1s electron in the hydrogen atom is maximum in the immediate vicinity of the nucleus; the probability of nding the electron is maximum at a distance from the nucleus. [16]
5. Explain the austempering process for a plain-carbon steel. Draw a cooling curve for an austempered austenitized eutectoid plain-carbon steel, using an isothermal transformation diagram. [16]
6. Which crystal structures are most commonly found in metals? Compare their packing eciencies in terms of coordination number and atomic packing factor. [16]
7. Describe Iron-Iron carbide phase diagram in detail. [16]
8. (a) Determine the critical crack length for a through crack contained within a thick plate of aluminum alloy, which is under uniaxial tension. For this alloy KIC = p in 21ksi and f = 83 ksi.
(b) Discuss how the amount and arrangement of the glass bers in berglass- reinforced plastics aect their strength. [8+8]
Code No: 07A50802
R07 Set No. 4
1. Explain the following:
(a) Empirical laws of recrystallization
(b) Grain growth
(c) Super plastic behavior. [5+5+6]
2. (a) Determine the critical crack length for a through crack contained within a thick plate of aluminum alloy, which is under uniaxial tension. For this alloy KIC = p in 21ksi and f = 83 ksi.
(b) Discuss how the amount and arrangement of the glass bers in berglass- reinforced plastics aect their strength. [8+8]
3. Describe Iron-Iron carbide phase diagram in detail. [16]
4. Which crystal structures are most commonly found in metals? Compare their packing eciencies in terms of coordination number and atomic packing factor. [16]
5. Explain the austempering process for a plain-carbon steel. Draw a cooling curve for an austempered austenitized eutectoid plain-carbon steel, using an isothermal transformation diagram. [16]
6. (a) Discuss how corrosion can be reduced by bringing environmental changes.
(b) Explain half-cell reactions. [10+6]
7. What do you understand by the charge cloud of an atomic electron? Account for the fact that while the cloud density of the 1s electron in the hydrogen atom is maximum in the immediate vicinity of the nucleus; the probability of nding the electron is maximum at a distance from the nucleus. [16]
8. (a) Compare edge and screw dislocations.
(b) Discuss the internal type of surface defects. [8+8]
III B.Tech I Semester Examinations,December 2011 :
Material Science For Chemical Engineers Set 1 :
1. Which crystal structures are most commonly found in metals? Compare their packing efficiencies in terms of coordination number and atomic packing factor. [16]
2. (a) Determine the critical crack length for a through crack contained within a thick plate of aluminum alloy, which is under uniaxial tension. For this alloy KIC = p in 21ksi and f = 83 ksi.
(b) Discuss how the amount and arrangement of the glass fibers in fiberglass- reinforced plastics affect their strength. [8+8]
3. What do you understand by the charge cloud of an atomic electron? Account for the fact that while the cloud density of the 1s electron in the hydrogen atom is maximum in the immediate vicinity of the nucleus; the probability of finding the electron is maximum at a distance from the nucleus. [16]
4. (a) Discuss how corrosion can be reduced by bringing environmental changes.
(b) Explain half-cell reactions. [10+6]
5. Explain the following:
(a) Empirical laws of recrystallization
(b) Grain growth
(c) Super plastic behavior. [5+5+6]
6. (a) Compare edge and screw dislocations.
(b) Discuss the internal type of surface defects. [8+8]
7. Describe Iron-Iron carbide phase diagram in detail. [16]
8. Explain the austempering process for a plain-carbon steel. Draw a cooling curve for an austempered austenitized eutectoid plain-carbon steel, using an isothermal transformation diagram.