NEIEP Mechanics Practice Exam

What maintains tension on the governor rope?

1. A Tension Sheave

2. A Balancing Weight

3. A Rope Pulley

4. A Compression Spring

The correct answer is: A Tension Sheave

The correct choice highlights the role of a tension sheave in maintaining the tension on the governor rope. A tension sheave is a type of pulley that is specifically designed to guide the rope while exerting tension on it. This is crucial in systems where it is necessary to maintain a constant load or ensure precise control of the mechanical components, such as in governors that regulate speed in engines or machinery. The tension sheave allows the rope to freely move over it while simultaneously keeping the necessary tension applied, which helps prevent slip or slack in the system. By maintaining this tension, the sheave ensures that the governor can operate effectively, responding accurately to the load conditions. The other options, while integral to various mechanical systems, do not specifically describe a component that primarily maintains tension in the rope. Balancing weights often serve to stabilize systems rather than exert tension directly. Rope pulleys might assist in changing the direction of the rope, but they don't inherently maintain tension. Compression springs are used to absorb shock or provide a restoring force but do not apply tension in the way required for a governor rope.