PTU B.Tech Aerospace Engineering 3rd Semester May 2019 70904 INTRODUCTION TO AEROSPACE ENGINEERING Question Papers

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Roll No.

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Total No. of Questions : 09

Total No. of Pages : 02

B.Tech. (Aerospace Engg.) (2012 Onwards) (Sem.-3)

INTRODUCTION TO AEROSPACE ENGINEERING

Subject Code : ASPE-202

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M.Code: 70904

Time: 3 Hrs.

Max. Marks : 60

INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.

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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 (2×10=20)

1. Answer briefly :
   1. Explain the salient features of troposphere.
   2. Explain briefly the early development of biplanes.

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   3. Explain the phenomenon of lift generation.
   4. Define geometric angle of attack and absolute angle of attack using sketches.
   5. List basic navigation instruments of a typical medium range transport aircraft.
   6. List and explain the function of primary control surfaces.
   7. Classify aircrafts based on wing planforms.

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   8. List the uses of stainless steel in aviation.
   9. What do you mean by 'geodesic' construction?
   10. Write the functions of wing ribs. Sketch a typical wing rib.

SECTION-B

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2. Explain the differences between ‘monocoque' and 'semi-monocoque' structures using sketches. (5)
3. Write a note on ‘rocket propulsion' with the help of sketch. (5)
4. Define chord line, camber, camber line and zero lift line of an unsymmetrical airfoil with the help of a neat and labelled diagram. (5)
5. What do you mean by space vehicles? Explain the development of space vehicles. (2,3)
6. What are metallic and non-metallic materials? Distinguish between the two. (2,3)

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SECTION-C

7. (a) Explain V-N diagram for a typical fighter aircraft with the help of a neat & labelled diagram. (4)
   (b) Write a short note on 'Reinforced & Honeycomb Structures'. (6)
8. (a) Discuss the usage of electronics in aviation. (6)
   (b) Distinguish between ‘Bluff bodies' and ‘Stream-lined body'. (4)

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9. (a) Explain the principles of navigation. (4)
   (b) Explain the requirements for orbital, planetary and atmospheric entry missions. (6)

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.