Determining whether a mechanical or structural seal is broken depends heavily on the specific application, but universal indicators include fluid leaks, pressure loss, strange operational noises, or visible physical degradation. For automotive engine seals, you will notice puddles of oil or continuous fluid seepage on components. For window seals, you will observe internal moisture fogging and condensation trapped between the glass panes. In industrial pumps, seal failure manifests as persistent fluid dripping, abnormal vibration, or a noticeable drop in fluid pressure output during routine operation.
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