Download PTU B-Tech AE 2020 Dec 3rd Sem 54113 Automotive Materials Question Paper

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Total No. of Pages : 02
Total No. of Questions : 09

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B.Tech. (AE) (2012 to 2017) (Sem.-3)
AUTOMOTIVE MATERIALS
Subject Code : BTAE-305
M.Code : 54113
Time : 3 Hrs. Max. Marks : 60

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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Q1. Attempt all parts.

1. How are materials classified?
2. What is effect of alloying vanadium to carbon-steel?
3. What are the characteristics of glass?
4. What are the applications of plastics in automobile industry?

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5. What is recrystallization?
6. What are the advantages of isothermal annealing process over full annealing?
7. What do you meant by cryogenic wear?
8. Name the materials used for manufacturing clutch plates.
9. Why is electroplating?

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10. What are the advantages of carbon matrix?

SECTION-B

Q2. Based upon the properties & their application, differentiate between white cast iron and grey cast iron.

Q3. What do you meant by vulcanization of rubber? Explain with diagram.

Q4. Describe electroplating process with neat sketches.

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Q5. Explain the criteria to be taken care of while selecting the material for cylinder block and cylinder head.

Q6. Write a short note on metal matrix composite.

SECTION-C

Q7. Taking gear as an example, explain the need of surface hardening of steel. What is the major difference in surface hardening given to low carbon steel and medium carbon steel?

Q8. State and explain the applications of ceramics in automobiles.

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Q9. Write short notes on :

1. Tempering
2. Alloys of Cu

NOTE: Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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