Which term describes twisting of a component, a type of internal moment causing rotation about an axis?

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Multiple Choice

Which term describes twisting of a component, a type of internal moment causing rotation about an axis?

Explanation:
Torsion describes twisting of a component caused by an internal moment (torque) that rotates material about its longitudinal axis. When a couple of forces act to twist a bar or shaft, they create a torsional moment, producing shear stresses that vary with distance from the axis and cause the cross-section to twist. This term specifically denotes the twisting action, unlike general structural members (beams, rafters, columns) or a generic component, which describe shapes or roles rather than the twisting behavior.

Torsion describes twisting of a component caused by an internal moment (torque) that rotates material about its longitudinal axis. When a couple of forces act to twist a bar or shaft, they create a torsional moment, producing shear stresses that vary with distance from the axis and cause the cross-section to twist. This term specifically denotes the twisting action, unlike general structural members (beams, rafters, columns) or a generic component, which describe shapes or roles rather than the twisting behavior.

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