7/27/2019 AEROSPACE_VEHICLE_STRUCTURES-II.pdf

http://slidepdf.com/reader/full/aerospacevehiclestructures-iipdf 1/8

 Code No: 07A52103 Set No. 1

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABADIII B.Tech. I Sem., II Mid-Term Examinations, November – 2010

AEROSPACE VEHICLE STRUCTURES-IIObjective Exam

Name: ______________________________ Hall Ticket No.

Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 20.

I Choose the correct alternative:

1. [ ] 

2. Principal stresses can be represented graphically by [ ]

a) Rayleigh method b) Mohr’s method c) Euler method d) Rankine method 

3. A shaft subjected to torsion experiences a pure shear stress τ   on the surface. The maximum

 principal stress on the surface, at 450

to the axis, is [ ]

a) τ   cos 450

b) 2τ   cos 450

c) τ   cos2

450

d) 2τ   sin 45 cos 45

0

 

4. [ ]

5. [ ]

Cont…..2

w.jntuworld.com

www.jntuworld.com

www.jw

7/27/2019 AEROSPACE_VEHICLE_STRUCTURES-II.pdf

http://slidepdf.com/reader/full/aerospacevehiclestructures-iipdf 2/8

 Code No: 07A52103 :2: Set No.1

6. A square bar of side 4 cm and length 100 cm is subjected to an axial load P, the same bar is

then used as a cantilever beam and subjected to an end load P, the ratio of the strain energiesstored in the second case to that in the first case , is [ ]

a) 12 b) 400 c) 1000 d) 2500

7. Strain energy stored in an axial bar due to axial load P is [ ]a) P

2L/AE b) P

2L/2AE c) 2P

2L/AE d) P

2L/4AE

8. The maximum principal stress theory is given by [ ]

a) Vons mises b) St.venant c) Rankine d) Guest

9. Torsion of hollow thin walled closed cells is given by [ ]a) Euler theory b) Johnson theory c) Bredt-batho theory d) Timoshenko theory

10. Torsion of thin walled multicell closed hollow structure is [ ]a) Statically determinate problem b) Statically indeterminate problem

c) Both a and b d) none

II Fill in the blanks:

11. Shear flow is defined as _____________ 

12. If q 1 and q 2 are the shear flows and A1 and A2 are the mean areas of thin walled two cellclosed structure subjected to torque T, T is given by ____________ 

13. The strain energy stored in cantilever beam subjected to point load P is ______________ 

14. The total strain energy in the simple supported beam with point load at the centre is given by _________________ 

15. When the Normal stress on the inclined plane is maximum, the shear stress becomes _____________________ 

16. The maximum strain energy theory is given by _________________.

17. If the mean area of a hollow tube is 100 mm2

and subjected to torque of 2000 Nmm, the

shear flow in N/mm is _____________ 

18. If the working stress is 200 N/mm2

and yield stress is 400 N/mm2

, the Factor of safetyaccording to maximum principal stress theory is _________________ 

19. If U is the total strain energy due to point load P, the deflection under the load by

castiglino;s theorem is given by ____________ 

20. If M is the bending moment due to external load, m is the bending moment due top unit

load at that section, according to unit load method, the deflection under the load is given

 by _____________________ 

-oOo-

w.jntuworld.com

www.jntuworld.com

www.jw

7/27/2019 AEROSPACE_VEHICLE_STRUCTURES-II.pdf

http://slidepdf.com/reader/full/aerospacevehiclestructures-iipdf 3/8

Code No: 07A52103 Set No. 2JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

III B.Tech. I Sem., II Mid-Term Examinations, November – 2010AEROSPACE VEHICLE STRUCTURES-II

Objective ExamName: ______________________________ Hall Ticket No.

Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 20.

I Choose the correct alternative:

1. [ ]

2. [ ]

3. A square bar of side 4 cm and length 100 cm is subjected to an axial load P, the same bar is

then used as a cantilever beam and subjected to an end load P, the ratio of the strain energiesstored in the second case to that in the first case , is [ ]

a) 12 b) 400 c) 1000 d) 2500

4. Strain energy stored in an axial bar due to axial load P is [ ]

a) P2L/AE b) P

2L/2AE c) 2P

2L/AE d) P

2L/4AE

5. The maximum principal stress theory is given by [ ]

a) Vons mises b) St.venant c) Rankine d) Guest

6. Torsion of hollow thin walled closed cells is given by [ ]a) Euler theory b) Johnson theory c) Bredt-batho theory d) Timoshenko theory

7. Torsion of thin walled multicell closed hollow structure is [ ]

a) Statically determinate problem b) Statically indeterminate problemc) Both a and b d) none

Cont…..2

w.jntuworld.com

www.jntuworld.com

www.jw

7/27/2019 AEROSPACE_VEHICLE_STRUCTURES-II.pdf

http://slidepdf.com/reader/full/aerospacevehiclestructures-iipdf 4/8

Code No: 07A52103 :2: Set No.2

8. [ ] 

9. Principal stresses can be represented graphically by [ ]

a) Rayleigh method b) Mohr’s method c) Euler method d) Rankine method 

10. A shaft subjected to torsion experiences a pure shear stress τ   on the surface. The maximum

 principal stress on the surface, at 450

to the axis, is [ ]

a) τ   cos 450

b) 2τ   cos 450

c) τ   cos2

450

d) 2τ   sin 45 

cos 450

 II Fill in the blanks:

11. The total strain energy in the simple supported beam with point load at the centre is given by _________________ 

12. When the Normal stress on the inclined plane is maximum, the shear stress becomes

 _____________________ 

13. The maximum strain energy theory is given by _________________.

14. If the mean area of a hollow tube is 100 mm2

and subjected to torque of 2000 Nmm, the

shear flow in N/mm is _____________ 

15. If the working stress is 200 N/mm2

and yield stress is 400 N/mm2, the Factor of safety

according to maximum principal stress theory is _________________ 

16. If U is the total strain energy due to point load P, the deflection under the load bycastiglino;s theorem is given by ____________ 

17. If M is the bending moment due to external load, m is the bending moment due top unit

load at that section, according to unit load method, the deflection under the load is given by _____________________ 

18. Shear flow is defined as _____________ 

19 If q 1 and q 2 are the shear flows and A1 and A2 are the mean areas of thin walled two cellclosed structure subjected to torque T, T is given by ____________ 

20. The strain energy stored in cantilever beam subjected to point load P is ______________ 

-oOo- 

w.jntuworld.com

www.jntuworld.com

www.jw

7/27/2019 AEROSPACE_VEHICLE_STRUCTURES-II.pdf

http://slidepdf.com/reader/full/aerospacevehiclestructures-iipdf 5/8

Code No: 07A52103 Set No. 3JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

III B.Tech. I Sem., II Mid-Term Examinations, November – 2010AEROSPACE VEHICLE STRUCTURES-II

Objective ExamName: ______________________________ Hall Ticket No.

Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 20.

I Choose the correct alternative:

1. A square bar of side 4 cm and length 100 cm is subjected to an axial load P, the same bar is

then used as a cantilever beam and subjected to an end load P, the ratio of the strain energiesstored in the second case to that in the first case , is [ ]

a) 12 b) 400 c) 1000 d) 2500

2. Strain energy stored in an axial bar due to axial load P is [ ]

a) P2L/AE b) P

2L/2AE c) 2P

2L/AE d) P

2L/4AE

3. The maximum principal stress theory is given by [ ]

a) Vons mises b) St.venant c) Rankine d) Guest

4. Torsion of hollow thin walled closed cells is given by [ ]

a) Euler theory b) Johnson theory c) Bredt-batho theory d) Timoshenko theory

5. Torsion of thin walled multicell closed hollow structure is [ ]

a) Statically determinate problem b) Statically indeterminate problem

c) Both a and b d) none

6. [ ] 

7. Principal stresses can be represented graphically by [ ]

a) Rayleigh method b) Mohr’s method c) Euler method d) Rankine method 

8. A shaft subjected to torsion experiences a pure shear stress τ   on the surface. The maximum

 principal stress on the surface, at 450

to the axis, is [ ]

a) τ   cos 450

b) 2τ   cos 450

c) τ   cos2

450

d) 2τ   sin 45 cos 45

0

 

Cont…..2

w.jntuworld.com

www.jntuworld.com

www.jw

7/27/2019 AEROSPACE_VEHICLE_STRUCTURES-II.pdf

http://slidepdf.com/reader/full/aerospacevehiclestructures-iipdf 6/8

Code No: 07A52103 :2: Set No.3 

9. [ ]

10. [ ]

II Fill in the blanks:

11. The maximum strain energy theory is given by _________________.

12. If the mean area of a hollow tube is 100 mm2

and subjected to torque of 2000 Nmm, the

shear flow in N/mm is _____________ 

13. If the working stress is 200 N/mm2

and yield stress is 400 N/mm2, the Factor of safety

according to maximum principal stress theory is _________________ 

14. If U is the total strain energy due to point load P, the deflection under the load by

castiglino;s theorem is given by ____________ 

15. If M is the bending moment due to external load, m is the bending moment due top unit

load at that section, according to unit load method, the deflection under the load is given

 by _____________________ 

16. Shear flow is defined as _____________ 

17. If q 1 and q 2 are the shear flows and A1 and A2 are the mean areas of thin walled two cell

closed structure subjected to torque T, T is given by ____________ 

18. The strain energy stored in cantilever beam subjected to point load P is ______________ 

19. The total strain energy in the simple supported beam with point load at the centre is given

 by _________________ 

20. When the Normal stress on the inclined plane is maximum, the shear stress becomes

 _____________________ 

-oOo- 

w.jntuworld.com

www.jntuworld.com

www.jw

7/27/2019 AEROSPACE_VEHICLE_STRUCTURES-II.pdf

http://slidepdf.com/reader/full/aerospacevehiclestructures-iipdf 7/8

Code No: 07A52103 Set No. 4JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

III B.Tech. I Sem., II Mid-Term Examinations, November – 2010AEROSPACE VEHICLE STRUCTURES-II

Objective ExamName: ______________________________ Hall Ticket No.

Answer All Questions. All Questions Carry Equal Marks.Time: 20 Min. Marks: 20.

I Choose the correct alternative:

1. The maximum principal stress theory is given by [ ]

a) Vons mises b) St.venant c) Rankine d) Guest

2. Torsion of hollow thin walled closed cells is given by [ ]

a) Euler theory b) Johnson theory c) Bredt-batho theory d) Timoshenko theory

3. Torsion of thin walled multicell closed hollow structure is [ ]

a) Statically determinate problem b) Statically indeterminate problem

c) Both a and b d) none4. [ ] 

5. Principal stresses can be represented graphically by [ ]

a) Rayleigh method b) Mohr’s method c) Euler method d) Rankine method 

6. A shaft subjected to torsion experiences a pure shear stress τ   on the surface. The maximum

 principal stress on the surface, at 450

to the axis, is [ ]

a) τ   cos 450

b) 2τ   cos 450

c) τ   cos2

450

d) 2τ   sin 45 cos 45

0

 

7. [ ]

Cont…..2

w.jntuworld.com

www.jntuworld.com

www.jw

7/27/2019 AEROSPACE_VEHICLE_STRUCTURES-II.pdf

http://slidepdf.com/reader/full/aerospacevehiclestructures-iipdf 8/8

Code No: 07A52103 :2: Set No.4  

8. [ ]

9. A square bar of side 4 cm and length 100 cm is subjected to an axial load P, the same bar is

then used as a cantilever beam and subjected to an end load P, the ratio of the strain energies

stored in the second case to that in the first case , is [ ]a) 12 b) 400 c) 1000 d) 2500

10. Strain energy stored in an axial bar due to axial load P is [ ]a) P

2L/AE b) P

2L/2AE c) 2P

2L/AE d) P

2L/4AE

II Fill in the blanks:

11 If the working stress is 200 N/mm2

and yield stress is 400 N/mm2, the Factor of safety

according to maximum principal stress theory is _________________ 

12. If U is the total strain energy due to point load P, the deflection under the load by

castiglino;s theorem is given by ____________ 

13. If M is the bending moment due to external load, m is the bending moment due top unit

load at that section, according to unit load method, the deflection under the load is given by _____________________ 

14. Shear flow is defined as _____________ 

15. If q 1 and q 2 are the shear flows and A1 and A2 are the mean areas of thin walled two cellclosed structure subjected to torque T, T is given by ____________ 

16. The strain energy stored in cantilever beam subjected to point load P is ______________ 

17. The total strain energy in the simple supported beam with point load at the centre is given

 by _________________ 

18. When the Normal stress on the inclined plane is maximum, the shear stress becomes

 _____________________ 

19. The maximum strain energy theory is given by _________________.

20. If the mean area of a hollow tube is 100 mm2

and subjected to torque of 2000 Nmm, theshear flow in N/mm is _____________ 

-oOo- 

w.jntuworld.com www.jw