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What function does the M8A1 Chemical Agent Alarm serve?

  1. Detects radioactive contamination

  2. Signals toxic gas presence

  3. Measures radiation levels

  4. Scans for alpha particles

The correct answer is: Signals toxic gas presence

The M8A1 Chemical Agent Alarm is specifically designed to detect the presence of toxic chemical agents in the environment. Its primary function is to provide an early warning system for personnel who may be exposed to chemical warfare agents. By continuously monitoring the atmosphere for specific chemical signatures, the M8A1 can alert users when hazardous substances are present, which is critical for the safety and response of military and emergency personnel in the field. The focus of the M8A1 is on chemical detection rather than radiation, which is why it does not serve functions related to radionuclide monitoring or detecting radioactive contamination, measuring radiation levels, or scanning specifically for alpha particles.