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← HistoryWhich outcome occurs in masonry walls when differential settlement increases beyond allowable limits?
A)Shear cracking propagates unpredictably✓
B)Material sublimation accelerates rapidly
C)Rebar yielding increases ductility
D)Thermal expansion closes expansion joints
💡 Explanation
Uncontrolled cracking results from exceeding a stone wall's capacity to withstand tensile stresses due to differential settlement, because this induces excessive force imbalances. Wall deformation drives shear cracking; therefore shear cracking occurs rather than uniform compression under loading.
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