# Questions & Answers of Analysis of statically determinate Trusses

A planar truss tower structure is shown in the figure.

Consider the following statement about the external and internal deteriminacies of the truss.

(P) Externally Determinate
(Q) External static Indeterminancy = 1
(R) External static Indeterminancy = 2
(S) Internally Determinate
(T) Internal static Indeterminancy = 1
(U) Internal static Indeterminancy = 2
Which one of the following option is correct?

Consider the frame shown in the figure:

If the axial and shear deformations in diferent members of the frame are assumed to be negligible, the reduction in the degree of kinematical indeterminacy would be equal to

For the truss shown below, the member PQ is short by 3 mm. The magnitude of vertical displacement of joint R (in mm) is _______________