INDIAN MARITIME UNIVERSITY

B.Tech (MARINE ENGINEERING)

June 2013 Examinations

FIFTH SEMESTER

MATERIAL SCIENCE

Old Subject Code: UG/ME/MS/T/311 QP Code: T0511501

Date: 08.06.2013 Max. Marks: 100

Time: 3 Hrs

SECTION -A

ANSWER ALL THE QUESTIONS(10 x 3 = 30)

1. State Paulis exclusion law of principle with an example?

2. Define atom packing factor

3. Difference between thermo plastics & thermo setting plastics with suitable examples?

4. Give any five destructive tests for material testings?

5. State Gibbs Phase rule?

6. What are inter metallic compounds?

7. What are the objectives of heat treatment?

8. Define fatigue?

9. Explain the pilling Bedworth rule with suitable example?

10. Give any two applications of PTFE?

SECTION - B (5 X 14 =70)

1. Explain the ionic, covalent ,& Metallic bond with suitable example?

(OR)

Find out the atomic radius for B.C.C. F.C.C. & HC.P of crystal lattices

2. Explain the following non destructive test

a. Fluorescent b.. Radiography c.. Ultrasonic

3. Explain the iron carbide equilibrium diagram (OR)

Explain the Time Temperature Transformation curve with suitable example

4. What is meant by annealing? Explain the various types of annealing with an example?

5. a. Define the term creep? Explain the various types of creep with suitable diagram?

b. Explain the fatigue testing machine with a suitable diagram

6. What is meant by corrosion? Explain the various types of corrosion with an example?

7. a. What are the applications of chromium, titanium in ship board systems?

b. What are refractories ? Explain their various types and its uses?

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