NEIEP Mechanics Practice Exam

How are position indicators connected when used on multiple floors?

1. Series

2. Parallel

3. Individually

4. Directly

The correct answer is: Parallel

Position indicators used in multi-floor systems are connected in parallel. This configuration allows each indicator to operate independently and display the accurate position of the elevator or any moving platform on that specific floor. When connected in parallel, each position indicator receives the same voltage and can operate simultaneously while showing the correct data for its associated floor. If one indicator fails or has issues, it does not interfere with the operation of the others. This ensures that users can always see the relevant position information regardless of the condition of other indicators, which is crucial for safety and operational reliability in vertical transport systems. The other configurations, like series or direct connections, would not provide the necessary independence or reliability for multiple indicators across different floors, leading to potential miscommunication of the system status.