Gujarat Technological University 2010-5th Sem B.Tech Aeronautical Engineering - in - EMBER,Flight Mechanics - Question Paper
The 5th semester of the Gujarat Technological University in the stream of Aeronautical Engineering has 7 subjects. The paper trend are all the identical and 1 has the subsequent subjects Composite Materials and Smart Structures, Flight Mechanics, Fundamentals of Turbo M/cs, Management-II, Aircraft Structure-II, Computational Fluid Dyanamics-1 and Operation & Maintenance of Aircraft. The paper has five ques. of 14 marks each, making the total marks of the paper 70. The ques. paper is to be answered within three hours.
beneath are attached Flight Mechanics ques. paper.
Seat No. Enrolment No.
GUJARAT TECHNOLOGICAL UNIVERSITY
B.E. Sem-Vth Examination December 2010
Seat No. Enrolment No.
Subject Name: Flight Mechanics Time: 03.00 pm - 05.30 pm Total Marks: 70
Subject code: 150101 Date: 13 /12 /2010
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Define ISA conditions with neat sketch of altitude vs. Temperature graph. 07 Define isothermal layer and Inversion layer.
Q.1
(a
(b
(a
(b
(b
Explain aerofoil nomenclature with neat sketch. 07
Give a short note on Classification of Drag forces with neat sketch. Write the 07 methods to reduce them.
Q2
Differentiate between Angle of Attack and Angle of Incidence. How they 07 useful applicable in flying performance. Explain with neat sketch.
OR
Differentiate between Local Mach No and Critical Mach No with 07 necessary sketch.
Define wave drag. Write advantages of sweep back wing with neat sketch. 07
Q.3
(a
(b
What is the meaning of Multi element aerofoil? What is the need of it? 07 Explain with neat sketch.
OR
Give a short note on Power Augmented Lift. Explain with neat sketches and 07 vector diagram.
Q.3
(a
(b
(a
(b
(a
(b
(a
(b
(a
(b
Define High Lift system. How lift is increased by increasing wing area. 07 Explain with neat sketch.
Define Pressure Altitude, Density Altitude, Temperature Altitude, and True 07 Altitude.
Q.4
Q.4
Q.5
Define Lift Coefficient, Drag Coefficient, Moment and Centre of Pressure. 07
OR
Draw an aerofoil section and explain How lift is generated by an aerofoil. 07
Give a short note on Types of Flaps with neat sketch. 07
Give a short note on Stick free and Stick fixed Static stability with neat 07 sketch.
Explain Total pitching moment about C.G with neat sketch. 07
OR
Give a short note on Trimming of Control Surface with neat sketch. 07
A sail plain weighs 4500N and has a wing loading of 600 N/m . Its drag 07 equation is CD = 0.01 + 0.022CL . After completing launch at 350 m in still air, what is the greatest distance the sail plane can cover, and what is the greatest duration of flight possible? Assuming in both the cases flight over level ground.
Find also corresponding speed of flight. Ignore changes of density of the atmosphere.
*************
Q.5
|
Attachment: |
| Earning: Approval pending. |
