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← TechnologyWhich consequence results when temperature gradients form across strain gauge sensors in a bridge structure?
A)Apparent strain measurement errors✓
B)Increased bridge vibrational resonance
C)Reduced fatigue life of girders
D)Compromised cathodic protection system
💡 Explanation
Differential thermal expansion induces apparent strain because the Wheatstone bridge circuit interprets resistance changes as actual load rather than thermal effects; therefore data is skewed rather than vibration shifts and corrosion issues.
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