Troops break step when marching across a bridge to prevent
A)interference.
B)resonance.
C)wave motion.
D)frequency distortion.

Question

Quizplus · Accepted Answer

Troops break step when marching across a bridge to prevent resonance, which is a phenomenon where the natural frequency of the bridge matches the frequency of the marching soldiers, causing the bridge to vibrate and potentially collapse. Breaking step disrupts the synchronized pattern of footfalls and prevents resonance from occurring.

Troops Break Step When Marching Across a Bridge to Prevent