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What type of alarm is referred to as a silent alarm?

  1. Audible alarm

  2. Visual alarm

  3. Silent alarm

  4. Manual alert

The correct answer is: Silent alarm

A silent alarm is a type of security device specifically designed to alert law enforcement or security personnel without making any noise. This is crucial in situations where the presence of an audible alarm could escalate a dangerous encounter or alert intruders to the activation of the alarm. Silent alarms are commonly used in scenarios such as bank robberies or other situations where discretion is vital. They provide an effective means of ensuring that help is on the way without compromising the safety of the individuals in the location where the alarm is triggered. The absence of sound can help maintain the element of surprise, allowing responders to arrive without alerting the suspect.