20250325

Which of the following superposition methods yields the correct result?

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Which of the following cannot be the moment diagram of this structure?

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Which of the following statements about this structure are correct? (Multiple answers possible)

• Member PB is the only zero force member.

• Force in member DQ is equal to the force in member HW.

• Force in member RS can be directly computed in one equation by cutting through section aa'

• Force in member LS can be directly computed in one equation by cutting through section bb'

In the basic assumptions of typical truss analysis, which of the following is not valid?

• All connections between truss members are assumed to be frictionless pinned joints.

• External loads act only at the joints.

• Members carry only axial tension or compression, with no bending moments developed.

• The effects of bending moments and shear forces must be considered between members.

• If a joint is connected to only two truss members and is not subjected to external forces, those two members are usually zero-force members.

For simply supported beams subjected to a uniformly distributed load and a linearly varying distributed load, respectively, how are their shear force diagrams typically characterized?

• Linear variation, quadratic function variation

• Constant, linear variation

• Piecewise linear variation, quadratic function variation

• Exponential variation, quadratic function variation