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Question
A column is effectively held in position and restrained in direction at one end but is free at the other end. If the actual length is L, the effective length is
A.
0.67 L
B.
L
C.
1.5 L
D.
2 L
Answer ( Option D)

2 L

Solution

At one end At other end Effective length
Translation Rotation Translation Rotation  
Restrained Restrained Free Free 2.0 L
Free Restrained Free Restrained 2.0 L
Restrained Free Restrained Free 1.0 L
Restrained Restrained Free Restrained 1.2 L
Restrained Restrained Restrained Free 0.8 L
Restrained Restrained Restrained Restrained 0.65 L

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