NFPA-99 Practice Exam

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Study for the NFPA-99 Exam with comprehensive quizzes that include multiple-choice questions, hints, and explanations. Prepare effectively to demonstrate your proficiency in healthcare facility regulations.

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Manifolds for gas cylinders shall actuate a blank signal and shall activate an indicator at all blank alarm panels to indicate when or just before changeover from one header to the other. What type of signal is this?

Area
Local
Master
Automatic

The correct answer is: Local

The appropriate type of signal described is a local signal. In the context of gas manifolds for cylinder systems, a local signal refers to an indication that is specific to the area or equipment involved, providing immediate feedback about the status of the gas supply. When the manifold sends a signal to activate indicators on alarm panels, this local indication allows personnel to be promptly aware of any changes in the system, especially during switchovers from one gas header to another. These local signals are essential for ensuring that operators can quickly respond to issues without requiring centralized monitoring. This specificity is what distinguishes local signals from other types, such as area signals, which may cover broader locations, or master signals, which might be used to communicate information throughout an entire facility. An automatic signal suggests a level of control and response that is beyond simply indicating changes in status; it implies a system that responds without human intervention, which is not the focus of this question.