Hall Ticket No Question Paper Code: BAE701
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
M.Tech I Semester End Examinations (Supplementary) July, 2017
Regulation: IARE-R16
INTRODUCTION TO AEROSPACE ENGINEERING
(Power Electronics and Electrical Drives)
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Discuss the Historical perspective of aeronautics.
A wind tunnel located at a pressure altitude of 500m 1:16Kg/m3, P=95472N/m2) has a
circular section of 5m.Air travels at 100m/s inside test section, speed of air in larger diameter is
20m/s .Determine upstream diameter, upstream pressure and mercury column height .
2. Discuss the parameters affecting aerodynamic forces .
Define Mach number? Derive an expression for speed of sound.
UNIT II
3. Using Helmholtz vortex theorem, derive an expression for induced drag coefficient for elliptical
lift distribution.
Write short notes on the following.
i. wing vorticies
ii. Downash
4. Briefly explain variation of lift and drag coefficient with respect to angle attack.
Explain the principle of lift theory. Discuss the effect of sweep back on maximum lift.
UNIT III
5. Discuss the formation of boundary layer over bluff bodies.
Discuss in detail about Deep stall and Pitching moments.
6. Explain in detail about
i. laminar flow
ii. Turbulent flow
iii. Laminar sub layer
Discuss the influence of mach number on drag coefficient.
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UNIT IV
7. Explain longitudinal stability of aircraft in detail .
Explain gliding turning of aircraft.
8. With the help of P-v and T-s diagram, explain the working of closed cycle gas turbine.
Explain dutch roll with the help of neat sketch .
UNIT V
9. Discuss the development of aircraft structures.
Briefly discuss the effect of temperature in hypersonic flow.
10. Explain in brief about
i. orbital maneuvers
ii. Rocket trajectories
iii. ballistic entry