GTU previous question papers -BE- Sem-III -Material Science & Metallurgy -Dec 2011

GTU previous question papers

GUJARAT TECHNOLOGICAL UNIVERSITY

BE SEM-III Examination-Dec-2011

Subject code: 131904 

Subject Name: Material Science & Metallurgy

 

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

Q.1 (a) Define 1) Toughness 2) Hardness 3) Hardenability

4) Malleability 5) Creep 6) Elasticity 7) Ductility .

(b) Discuss selection criteria for materials used in engineering applications. 07

Q.2 (a) Draw Iron-Carbon Diagram and explain eutectic reaction in it. 07

(b) Explain the effects on steel by alloying elements Silicon, Sulphur, Magnesium and Phosphorous.

OR

(b) Explain properties and application of Wrought iron. 07

Q.3 (a) Explain the Spark Test and Magnetic test for metallic materials. 07

(b) Write the procedure for Jominy end quench practical and discuss its conclusion.

OR

Q.3 (a) Explain the difference between Annealing and Normalizing. 07

(b) What is phase diagram? Explain Lever rule. 07

Q.4 (a) Differentiate between white cast iron and grey cast iron. 07

(b) Give composition and use of White metal and Monel metal. 07

OR

Q.4 (a) Enlist the products made from powder metallurgy. Explain all four steps of power metallurgy.

(b) Explain structure and properties of Malleable cast iron. 07

Q.5 (a) Which non-destructive test is used for finding defects on welded joints? Explain it.

(b) Explain cathodic protection against corrosion. 07

OR

Q.5 (a) Explain principle and procedure of Ultrasonic test. 07

(b) Explain metal and organic coatings. 07

 

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