Which of the following statements is TRUE regarding the equilibrium of the frame with rigid joints and uniform flexural rigidity? A) Shear forces at H and F are zero B) Horizontal displacement at H and F are not zero C) Vertical displacement at H and F are zero D) Slopes at E, F, G, and H are non-zero

A) Shear forces at H and F are zero

Fill in the blank: The principle of ______ states that the deflection at a given point in a structure produced by several loads acting simultaneously can be found by superposing the deflections caused by each load acting individually.

Superposition

True or False: A structure is said to be statically indeterminate if the number of reactions exceeds the number of equilibrium equations.

True

Riddle: I’m an energy stored in materials when they deform, and I can be elastic or inelastic. What am I?

Strain energy

What is the formula for calculating strain energy stored in a member subjected to axial load?

U = 1/2 P * u

In the context of trusses, the internal forces are primarily ______.

Axial forces

Which method is used to calculate deflections in trusses subjected to external loading?

Unit load method

Fill in the blank: A structure that fails when the maximum shear stress reaches a certain value is described by the ______ theory.

Maximum Shear Stress Theory

True or False: The degree of static indeterminacy can be calculated using the formula i = (m + r) - 2j.

True

Riddle: I am a property of materials that quantifies their ability to deform under load, represented by the ratio of force to displacement. What am I?

Stiffness