Structural Analysis Basics

A pinned support provides:

1. Only a vertical reaction
2. Horizontal, vertical and moment reactions
3. A moment only
4. Horizontal and vertical reactions, but no moment

A roller support provides:

1. One reaction, perpendicular to the surface
2. No reactions
3. Two reactions
4. A moment and a force

A fixed support provides:

1. Horizontal and vertical reactions and a moment
2. Only a horizontal reaction
3. No moment
4. Only a vertical reaction

A statically determinate structure is one whose reactions:

1. Can be found from the equations of equilibrium alone
2. Cannot be found
3. Need deflection compatibility to solve
4. Are always zero

How many equations of static equilibrium apply to a plane structure?

1. 4
2. 2
3. 6
4. 3

What is the degree of static indeterminacy of a propped cantilever?

1. 2
2. 0
3. 3
4. 1

A point of contraflexure is where:

1. The load is applied
2. The shear force is maximum
3. The bending moment changes sign
4. The beam is supported