Work & Strain Energy MCQs : This section focuses on the "Work & Strain Energy". These Multiple Choice Questions (MCQs) should be practiced to improve the Work & Strain Energy skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
If an axial force N is applied gradually to a bar which is linear elastic and has a constant cross sectional area A and length L, what will be the value of Ui ?
A. 1⁄4 N2L/AE
B. 1⁄3 N2L/AE
C. 1⁄2 N2L/AE
D. N2L/AE
Question 2
If an axial force N is applied gradually to a bar which is linear elastic and has a constant cross sectional area A and length L, what will be Δ?
A. 1⁄4 NL/AE
B. 1⁄3 NL/AE
C. 1⁄2 NL/AE
D. NL/AE
Question 3
Ui is not developed when:-
A. Structure elongates
B. Structure bends
C. Structure deforms
D. External force is zero
Question 4
What will be the value of dUi in terms of E and I?
A. 1⁄4 M2dx/EI
B. 1⁄3 M2dx/EI
C. 1⁄2 M2dx/EI
D. M2dx/EI
Question 5
What will be the value of Ue if material is linear elastic? Axial force is increased from 0 to P gradually.
A. 1⁄4 P Δ
B. 1⁄3P Δ
C. 1⁄2P Δ
D. P Δ
Question 6
What will be the value of Ue if material is linear elastic? Moment is increased from 0 to m gradually.
A. 1⁄4 M θ
B. 1⁄3 M θ
C. 1⁄2 M θ
D. M θ
Question 7
What will be the work done by F’?
A. 1⁄4F’ Δ’
B. 1⁄3F’ Δ’
C. 1⁄2F’ Δ’
D. F’ Δ’
Question 8
What will be the work done by M if another load external load M’ causes deflection θ’ if the material is linear elastic and Moment is increased from 0 to m gradually?
A. 1⁄4 M θ’
B. 1⁄3 M θ’
C. 1⁄2 M θ’
D. M θ’
Question 9
What will be the work done force M if another load external load M’ causes deflection θ’ if the material is linear elastic and Moment is increased from 0 to m gradually?
A. 1⁄4 M θ’
B. 1⁄3 M θ’
C. 1⁄2 M θ’
D. M θ’
Question 10
What will be the work done force P if another load external load F’ causes deflection Δ’ in the above question?
A. 1⁄4P Δ’
B. 1⁄3P Δ’
C. 1⁄2P Δ’
D. P Δ’