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Material Science And Engineering Metallurgy Model Exam Question Paper - Veltech Edition
#1


VELTECH Dr.RR & Dr.SR TECHNICAL UNIVERSITY

B.Tech DEGREE MODEL EXAMINATION

[OUTCOME BASED EDUCATION PATTERN]
Year/Sem: SECOND  YEAR/IV Sem Duration-3 hrs
Subject Code/Title:
Branch U4MEB09/ MATERIAL SCIENCE AND ENGINEERING METALLURGY  
Max Marks-100
EXECUTION PLAN
Sl. No Activities Time(Minutes)
1 To study the Question Paper and choose to attempt 5
2 Part-A      2Minutes *10 Questions 20
3 Part-B     10Minutes * 5 Questions 50
4 Part-C    20Minutes *5 Questions 100
4 Quick revision & Winding up 5
Total 180
Summative Assessment
PART-A (2 Marks)

(10*2=20 Marks)
Answer All Questions
1. CO1: Define Solid Solution
2. CO1: What are the characteristics of Edge dislocation?
3. CO2: What are the advantages of Tie line rule and Lever rule?
4. CO2: What are the applications of Duralumin?
5. CO3: Compare  Annealing and Normalizing
6. CO3: What are the advantages of heat treatment Processes?
7. CO4: Classify the different types of strengthening mechanism.
8. CO4: Compare Ductile and Brittle failures
9. CO5: What is Yield point? What is the difference between Upper Yield Point and Lower Yield Point?
10. CO5: Compare the Intender used in Brinnel Hardness tester and Vicker’s hardness tester.

Part – B (6 Marks)

(5 * 6 = 30 Marks)
Answer All Questions
11. a) CO1: Calculate the Packing Efficiency of Face Centered Cubic Crystals.       (6)
(or)
b) CO1: Explain the Hume Rothery’s Rules                           (6)                        

12. a) CO2: Explain isomorphous  phase diagram with suitable example         (6)          
(or)
b) CO2: Distinguish ferrite and austenite stabilizers? How do they influence in Iron-Iron carbon diagram?   (6)

13. a) CO3:  Explain the different Annealing processes.   (6)
(or)
b) CO3: Explain the martempering Process.   (6)

14   a) CO4: Explain the salient features of Ductile Failures   (6)
(or)
b) CO4: Distinguish fatigue behavior of aluminum and Tool steel through S-N curve.   (6)

15   a) CO5: Draw the stress-strain curves of ductile and brittle materials.   (6)
(or)
b) CO5: What are Creep resistant materials? List some applications of Creep-resistant materials?   (6)

Part – C (10Marks)

(5 * 10 = 50 Marks)
Answer All Questions
16 a)   CO1: How many effective numbers of atoms are existing in Face Centered Cubic Crystal and Hexagonal Cubic Crystal structure? Calculate the Packing Efficiency  of Hexagonal Closed Packed structure  with neat sketch (10)
                                                  (or)
b)  CO1:  Explain the different crystal imperfections in solids. Differentiate the characteristics of Edge and Screw dislocations. (10)

17 a)   CO2:  Explain the three invariant reactions in Iron-Iron carbon equilibrium diagram with neat sketch.  (10)
                                                            (or)
   b)   CO2:  What are heat treatable and non heat treatable aluminum alloys? Explain Age hardenable Aluminum Alloys.    (10)

18 a)   CO3:  Explain the Time Temperature transformation diagram in steels  (10)
(or)
b)  CO3:  Define Hardenability? Estimate Grossmann’s critical diameter through experiment  (10)

19 a)   CO4:  Explain the different strengthening mechanism against yield .   (10)
(or)
    b)  CO4:  What is Creep? Explain the mechanisms of creep through creep curve. (10)

20  a) CO5:   Explain the different scales used in Rockwell Hardness Tester. (10)
(or)
     b) CO5:  Explain the different cyclic fatigue test methods. (10)



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