Strength of Materials
The possible loading in various members of framed structures are

compression or tension
buckling or shear
All of the listed here
shear or tension

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Strength of Materials
According to principle of moments

if a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero
the algebraic sum of the moments of any two forces about any point is equal to moment of theiwesultant about the same point
if a system of coplanar forces is in equilibrium, then their algebraic sum is zero
positive and negative couples can be balanced

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Strength of Materials
Coefficient of friction is the

the friction force acting when the body is in motion
ratio of limiting friction and normal reaction
angle between normal reaction and the resultant of normal reaction and the limiting friction
the friction force acting when the body is just about to move

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Strength of Materials
Center of percussion is

the point of metacentre
the point of C.G.
the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
point of suspension

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