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INTRODUCTION to AEROSPACE ENGINEERING, Study notes of Introduction to Aerospace Engineering

Jamia Millia IslamiaIntroduction to Aerospace Engineering

B.Tech Semester Regular Examinations, June 2009 INTRODUCTION TO AEROSPACE ENGINEERING (Aeronautical Engineering) Artificial Feel Unit (AFU), “troposphere” and the “stratosphere”, aileron reversal, hydraulic actuator, turbo shaft engines, directional and lateral static stability.

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Code No: R07A12101 Set No. 1
I B.Tech Semester Regular Examinations, June 2009
INTRODUCTION TO AEROSPACE ENGINEERING
(Aeronautical Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
⋆⋆⋆⋆⋆
1. (a) Define aerodynamics as a component of fluid dynamics.
(b) Explain about on skin friction in detail. [6+10]
2. (a) What is called Artificial Feel Unit (AFU) in the power operated control system.
(b) Write the purpose of trimmer in the power operated control system. [8+8]
3. (a) What are the differences between the “troposphere” and the “stratosphere”.
(b) What is aspect ratio and what is its significance? [8+8]
4. Name three types of fuselages classified according to the method by which stresses
are transmitted to the structure. [16]
5. Explain in detail the operation a jet engine. [16]
6. Draw an airfoil and explain as how lift, drag and induced drag are produced. [16]
7. (a) Explain in detail with the help of a figure directional static stability.
(b) Explain in detail with the help of a figure lateral static stability. [8+8]
8. Discuss in detail about the elements of satellite. [16]
⋆⋆⋆⋆⋆
1 of 1
pf3
pf4

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I B.Tech Semester Regular Examinations, June 2009 INTRODUCTION TO AEROSPACE ENGINEERING (Aeronautical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆ ⋆ ⋆ ⋆ ⋆

  1. (a) Define aerodynamics as a component of fluid dynamics. (b) Explain about on skin friction in detail. [6+10]
  2. (a) What is called Artificial Feel Unit (AFU) in the power operated control system. (b) Write the purpose of trimmer in the power operated control system. [8+8]
  3. (a) What are the differences between the “troposphere” and the “stratosphere”. (b) What is aspect ratio and what is its significance? [8+8]
  4. Name three types of fuselages classified according to the method by which stresses are transmitted to the structure. [16]
  5. Explain in detail the operation a jet engine. [16]
  6. Draw an airfoil and explain as how lift, drag and induced drag are produced. [16]
  7. (a) Explain in detail with the help of a figure directional static stability. (b) Explain in detail with the help of a figure lateral static stability. [8+8]
  8. Discuss in detail about the elements of satellite. [16]

I B.Tech Semester Regular Examinations, June 2009 INTRODUCTION TO AEROSPACE ENGINEERING (Aeronautical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆ ⋆ ⋆ ⋆ ⋆

  1. (a) Describe about “flow separation”? (b) Explain the developments in aerodynamics briefly. [8+8]
  2. (a) Explain the purpose of control surface stops. (b) Why is it necessary to balance control surface? [8+8]
  3. (a) What are the differences between the “troposphere” and the “stratosphere”. (b) What is aspect ratio and what is its significance? [8+8]
  4. (a) Flight loads are typically divided into two types. Explain. (b) Define wing loading disc loading and wing span loading. [10+6]
  5. (a) What is propeller propulsion? Explain with figure. (b) With the aid of a sketch, explain the principle of propeller propulsion to obtain thrust. [6+10]
  6. The pressure at a point on the wing of an airplane is 7.58 × 104 N/m^2. The airplane is flying with a velocity of 70 m/s at conditions associated with a standard attitude of 2000m. Calculate the pressure coefficient at this point on the wing. [16]
  7. What is the cause of aileron reversal and explain the methods to rectify them. [16]
  8. Draw a polar co-ordinate system to derive the Kinetic energy of the space vehicle. [16]

I B.Tech Semester Regular Examinations, June 2009 INTRODUCTION TO AEROSPACE ENGINEERING (Aeronautical Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆ ⋆ ⋆ ⋆ ⋆

  1. (a) How to calculate induced drag? (b) How to reduce induced drag? [8+8]
  2. (a) What are the primary flying controls and explain their operations? (b) What are secondary control surfaces? [8+8]
  3. (a) What is the standard atmosphere? Name its components. (b) What are the properties of the atmosphere? Discuss O 3 layer significance. [8+8]
  4. (a) What is the purpose of drag and anti-drag wires? (b) Define ribs. [10+6]
  5. (a) Mention the merits of turbojet engine. (b) Mention various aircrafts using the power plants of jet and piston engines. (c) Name the aircrafts having turbo shaft engines. [6+6+4]
  6. (a) What is meant by ‘aileron and aileron dray’? (b) What are Frise ailerons and differential ailerons? (c) What are spoilers? [4+8+4]
  7. (a) Explain in detail with the help of a figure directional static stability. (b) Explain in detail with the help of a figure lateral static stability. [8+8]
  8. Discuss in detail about the elements of satellite. [16]