1-The deflection curve of a beam is defined as the movement of the midpoint of t
ID: 1816312 • Letter: 1
Question
1-The deflection curve of a beam is defined as the movement of the midpoint of the beam from the original unloaded location.true
false
2-Pure bending refers to the beam flexure due to a constant bending moment, and nonuniform bending refers to the flexure in the presence of shear forces.
true
false
3-Longitudinal strains in a beam are proportional to the curvature and vary linearly from the neutral axis to the top and bottom of the beam.
true
false
4-For linearly elastic materials, the normal stress pattern is constant across a cut face of a loaded beam.
true
false
5-The beam section modulus S is very useful in that it is the maximum magnitude of the ratio of the maximum moment to the allowable normal stress that can be carried by the beam.
true
false
6-The internal shear stresses in a beam are proportional to the varying shear load, V, across the cross-section being considered.
true
false
7-Shear stresses are greatest at the neutral axis of a loaded rectangular beam.
true
false
8-Beams of nonrectangular cross section are analyzed by using a different approach in finding the q, V, and M at the point of interest along the beam.
true
false
9-A beam’s neutral axis is located at the centroid of the cross-sectional area of the beam.
true
false
10-In a wide-flange beam or similar cross section, the shear stress in the flange just outside where it joins the web is too complex to calculate using the elementary methods used in the text.
true
false
Explanation / Answer
1-The deflection curve of a beam is defined as the movement of the midpoint of the beam from the original unloaded location.true
2-Pure bending refers to the beam flexure due to a constant bending moment, and nonuniform bending refers to the flexure in the presence of shear forces.
true
3-Longitudinal strains in a beam are proportional to the curvature and vary linearly from the neutral axis to the top and bottom of the beam.
false 4-For linearly elastic materials, the normal stress pattern is constant across a cut face of a loaded beam.
true
5-The beam section modulus S is very useful in that it is the maximum magnitude of the ratio of the maximum moment to the allowable normal stress that can be carried by the beam.
true 6-The internal shear stresses in a beam are proportional to the varying shear load, V, across the cross-section being considered.
false 7-Shear stresses are greatest at the neutral axis of a loaded rectangular beam.
true 8-Beams of nonrectangular cross section are analyzed by using a different approach in finding the q, V, and M at the point of interest along the beam.
false 9-A beam’s neutral axis is located at the centroid of the cross-sectional area of the beam.
true
10-In a wide-flange beam or similar cross section, the shear stress in the flange just outside where it joins the web is too complex to calculate using the elementary methods used in the text.
true
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.