1-Beams are generally defined as structural members that are subjected to latera
ID: 1816311 • Letter: 1
Question
1-Beams are generally defined as structural members that are subjected to lateral loads.true
false
2-A "cantilever" beam has one end firmly fixed so that no movement of that end will occur.
true
false
3-Shear forces have magnitudes greater than zero at all points along a beam.
true
false
4-One may switch sign conventions, as convenient, for shear and bending moment, since the resulting equations are exactly the same for any consistent system used.
true
false
5-During beam analysis when a beam is cut by a section, one can use the principles of equilibrium analysis to determine the internal shear and bending moment at the section.
true
false
6-At some points along a beam, beam shear and moment diagrams show abrupt changes in magnitude. These abrupt changes don't actually occur so abruptly, since it takes some reasonable distance for change transitions to occur within the beam.
true
false
7-A couple loading is not encountered in analysis of beams, just in torsion members.
true
false
8-In a beam, the change in the shear load, V, between two points is the integral of -qdx between those two points.
true
false
9-The slope of the moment diagram at any point is the magnitude of the internal shear load at that same point in a beam.
true
false
10-Load, shear, and bending moment diagrams are easier to express as equations when the beam has one or more point loads as compared to a uniform loading along the beam.
true
false
Explanation / Answer
1-Beams are generally defined as structural members that are subjected to lateral loads.true
2-A "cantilever" beam has one end firmly fixed so that no movement of that end will occur.
true
3-Shear forces have magnitudes greater than zero at all points along a beam.
false 4-One may switch sign conventions, as convenient, for shear and bending moment, since the resulting equations are exactly the same for any consistent system used.
true
5-During beam analysis when a beam is cut by a section, one can use the principles of equilibrium analysis to determine the internal shear and bending moment at the section.
true
6-At some points along a beam, beam shear and moment diagrams show abrupt changes in magnitude. These abrupt changes don't actually occur so abruptly, since it takes some reasonable distance for change transitions to occur within the beam.
true
7-A couple loading is not encountered in analysis of beams, just in torsion members.
false
8-In a beam, the change in the shear load, V, between two points is the integral of -qdx between those two points.
true
9-The slope of the moment diagram at any point is the magnitude of the internal shear load at that same point in a beam.
true
10-Load, shear, and bending moment diagrams are easier to express as equations when the beam has one or more point loads as compared to a uniform loading along the beam.
true
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