NEIEP Mechanics Practice Exam

What is the primary function of group controllers in elevator systems?

1. To manage the speed of individual cars

2. To coordinate the movement of multiple cars

3. To control the power supply to the motors

4. To monitor safety compliance

The correct answer is: To coordinate the movement of multiple cars

The primary function of group controllers in elevator systems is to coordinate the movement of multiple cars. Group controllers manage the calling and dispatching of elevators within a system, ensuring that elevator cars respond efficiently to requests from different floors. They optimize traffic flow by determining which car is best suited to respond to a call based on its current location, direction, and load capacity, thereby reducing wait times for passengers and increasing overall system efficiency. While managing the speed of individual cars, controlling power supply, and monitoring safety compliance are important aspects of elevator operation, these tasks are typically performed by other components or systems within the elevator infrastructure. Group controllers focus specifically on the strategic coordination among multiple cars to create a smooth and efficient service in buildings with several elevators.