This is a great comprehensive unit test that discusses the following:- What is a structure? Force? Load?- Types of structures (Natural vs. Man-Made) Solid, Shell, Frame, Combination- Live, Dead, Dynamic load- Point/Plane of Application- Internal Forces (Tension, Compression, Torsion, Shear)- External Forces (Wind, Water etc.)- Mass vs. Gravity- Function vs. FormAnd More!