Exam Details
| Subject | Aircraft Structures | |
| Paper | ||
| Exam / Course | B.Tech in Aerospace Engineering (BTAE) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2015 | |
| City, State | new delhi, |
Question Paper
Define the team 'shear'.
What are the different types of aircraft monocoque designs?
Explain the construction of an aircraft wing.
Explain the Flight envelope diagram, clearly indicating corner velocity, positive and negative load factors.
Find the slope and deflection at point B for the cantilever beam shown in Figure using unit load method. Take EI 20000 kNm^2 .
<img src='./qimages/13173-2b.jpg'>
A quadrant ring beam of radius supports a concentrated load at the free end. Calculate the vertical and horizontal deflection at the free end.
What do you understand by unsymmetrical bending? Explain the torsion of thin walled closed sections.
Explain the limit load for load factor determination.
What is torsional stiffness How does it affect flight
A relatively thin walled tube and a solid circular shaft have the same cross-sectional area. Compare the torsional stiffness of one to the other.
The beam ABCD shown in Figure 2 has overhangs at each end and carries uniform load of intensity q. For what ratio b/L will the bending moment at the mid-point of the beam be zero?
<img src='./qimages/13173-5a.jpg'>
Define shear centre. Explain its practical significance.
The vertical shear action on a channel section is 150 kN. Find the shear flow and shear centre of the section as shown in Figure 3. Assume thickness in flange as 9·7 mm and thickness of web 6.7 mm.
<img src='./qimages/13173-6a.jpg'>
Differentiate between flexibility and stiffness.
Explain how the Brittle Lacquer test is used to identify areas of concentrated stress.
A hollow cylindrical steel shaft is 1·5 m long and has inner and outer diameters of 40 mm and 60 mm respectively. What torque should be applied to the end of the shaft to produce a twist of 2° Use the value G =80 GPa for the modulus of rigidity of steel.
What is a load cell? How does a pneumatic load cell work?
Derive the equation of shearing stress in terms of torque and polar moment of inertia.
What are the different types of aircraft monocoque designs?
Explain the construction of an aircraft wing.
Explain the Flight envelope diagram, clearly indicating corner velocity, positive and negative load factors.
Find the slope and deflection at point B for the cantilever beam shown in Figure using unit load method. Take EI 20000 kNm^2 .
<img src='./qimages/13173-2b.jpg'>
A quadrant ring beam of radius supports a concentrated load at the free end. Calculate the vertical and horizontal deflection at the free end.
What do you understand by unsymmetrical bending? Explain the torsion of thin walled closed sections.
Explain the limit load for load factor determination.
What is torsional stiffness How does it affect flight
A relatively thin walled tube and a solid circular shaft have the same cross-sectional area. Compare the torsional stiffness of one to the other.
The beam ABCD shown in Figure 2 has overhangs at each end and carries uniform load of intensity q. For what ratio b/L will the bending moment at the mid-point of the beam be zero?
<img src='./qimages/13173-5a.jpg'>
Define shear centre. Explain its practical significance.
The vertical shear action on a channel section is 150 kN. Find the shear flow and shear centre of the section as shown in Figure 3. Assume thickness in flange as 9·7 mm and thickness of web 6.7 mm.
<img src='./qimages/13173-6a.jpg'>
Differentiate between flexibility and stiffness.
Explain how the Brittle Lacquer test is used to identify areas of concentrated stress.
A hollow cylindrical steel shaft is 1·5 m long and has inner and outer diameters of 40 mm and 60 mm respectively. What torque should be applied to the end of the shaft to produce a twist of 2° Use the value G =80 GPa for the modulus of rigidity of steel.
What is a load cell? How does a pneumatic load cell work?
Derive the equation of shearing stress in terms of torque and polar moment of inertia.
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
- National Centre for Disability Studies (NCDS)
- School of Agriculture (SOA)
- School of Computer and Information Sciences (SOCIS)
- School of Continuing Education (SOCE)
- School of Education (SOE)
- School of Engineering & Technology (SOET)
- School of Extension and Development Studies (SOEDS)
- School of Foreign Languages (SOFL)
- School of Gender Development Studies(SOGDS)
- School of Health Science (SOHS)
- School of Humanities (SOH)
- School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
- School of Performing Arts and Visual Arts (SOPVA)
- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
- School of Social Sciences (SOSS)
- School of Social Work (SOSW)
- School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
- School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
Subjects
- Aerodynamics- I
- Aerodynamics- II
- Aircraft Design/Launch Vehicle/ Rocket Design
- Aircraft Instruments
- Aircraft Safety and Maintenance Engineering
- Aircraft Structures
- Aircraft Systems And Airworthiness Requirements
- Applied Chemistry
- Applied Physics
- Basic Control Theory
- CNS-ATM system
- Composite Materials
- Computer Fundamentals
- Engineering Drawing
- Environmental Science
- Flight Mechanics
- High Speed Aerodynamics
- Instruction To Computer Play Device
- Introduction to Aeronautics
- Introduction To Rocket And Missiles
- Mechanics Design
- Propulsion- I
- Propulsion- II
- Rocket Propulsion
- Space Dynamics
- Strength of Materials
- Technical Writing and Communication Skills
- Workshop Technology