NEIEP Mechanics Practice Exam

What functions can load weighing transducers perform?

1. Measure weight only

2. Bypass hall calls and adjust motor control

3. Adjust door times, bypass hall calls, and adjust motor control

4. Detect system failures

The correct answer is: Adjust door times, bypass hall calls, and adjust motor control

Load weighing transducers are designed to perform a variety of functions related to the management and control of elevator systems. One of their primary roles is to measure weight accurately, ensuring that the elevator does not exceed its rated load capacity, which contributes to safety and efficiency. In addition to merely measuring weight, these transducers can be integrated into the elevator control system to enhance its operational capabilities. They can adjust door times, which is important for optimizing the time the doors remain open based on the weight detected, ensuring that elevators serve their intended purpose effectively without unnecessary delays. This functionality can also contribute to passenger satisfaction by decreasing wait times. Moreover, the ability to bypass hall calls and adjust motor control based on the weight measured allows for improved traffic management within the elevator system. For example, if the transducer indicates that an elevator is carrying a heavier load, the control system can modify its operation (such as slowing down the motor) to ensure smooth and safe transportation. While detecting system failures is an important aspect of maintaining elevator performance, this function is typically managed by other components in the elevator control system rather than load weighing transducers alone. Their primary focus is on weight measurement and the associated adjustments to improve operational efficiency. Therefore, the wide range of adjustments facilitated by the