Ace the Elevator Mechanic Exam 2025 – Rise to the Challenge and Elevate Your Career!

To address a voltage drop occurring after moving a controller further away, the most effective solution is to decrease the gauge of the wire. This is because wire gauge is inversely related to wire resistance: a smaller gauge number corresponds to a thicker wire, which has lower resistance.

When voltage is delivered over a distance, resistance in the wire can lead to a loss of voltage by the time it reaches the load (in this case, the controller). By using a thicker wire (lower gauge), the resistance is reduced, which helps to minimize the voltage drop and maintain a better voltage level at the load.

The option that suggests increasing the gauge of wire would actually result in higher resistance, exacerbating the voltage drop problem instead of solving it. The option discussing reducing the length of wire is not viable if the requirement is to maintain the 30-foot distance from the controller. Choosing a larger gauge of wire aligns with the notion of utilizing a thicker wire, which helps decrease resistance but is not formulated correctly in the context of wire gauge terminology. Hence, decreasing the gauge of wire is the best approach to mitigate voltage drop effectively.