What is the Virtual Work method primarily used for in structural analy $y_{8i_s}?$

A$.$ Determine nodal displacements and rotation.

B$.$ Calculate support reactions.

C$.$ Analyze dynamic behavior.

D$.$ Evaluate member fores and moments.

E$.$ None of the above.

$($B$)($C$)($D$)$

In the unit load method, what is the purpose of superposition?

A$.$ To simplify the analysis by considering only one load at a time.

B$.$ To combine loads to find the maximum load effect.

C$.$ To distribute loads evenly along the structure.

D$.$ To balance the structure statically.

E$.$ To minimize the deflection of the structure.

$(4)($B$)($C$)($B$)$

How does the Virtual Work method handle the effect of support settlements?

A$.$ As external forces.

B$.$ Ignored in the analysis.

C$.$ Included in joint displacements.

D$.$ Incorporated into fixed$-$end moments.

E$.$ Accounted for in the stiffness matrix.

$(4)($B$)($C$)($D$)($E$)$

A$.$ Members remain elastic throughout.

B$.$ Members deform nonlinearly.

C$.$ Members have variable cros.

D$.$ Members are infin

B$.$ None of the

$($A$)($B$)$

$($E$)$

What is method?

A$.$ Linear

B$.$ Quadratic.

C$.$ Exponential,

D$.$ Inverse square.

$(4)($B$)($C$)($D$)($B$)$