NEIEP Mechanics Practice Exam

Which type of sheave configuration would most likely require a specific type of rope sheave?

1. Single layer sheave

2. Double-wrapped sheave

3. U-Groove configuration

4. V-Groove configuration

The correct answer is: U-Groove configuration

The correct choice highlights the U-Groove configuration as one that most likely requires a specific type of rope sheave. This is because U-Groove sheaves are designed to accommodate ropes with a specific diameter and shape. The curvature of the groove effectively mimics the profile of the rope, allowing for optimal contact and reducing slippage. This type of sheave configuration is particularly important in applications where maintaining alignment and minimizing wear is critical. For instance, using a U-Groove sheave with a rope that fits its profile perfectly enhances the transfer of forces, which can lead to more efficient operation and prolong the life of both the rope and the sheave. In contrast, other sheave configurations like the single layer, double-wrapped, or V-Groove setups may not necessitate as specific a fit regarding the rope's design. While they also serve important functions in various applications, they do not rely as heavily on the precise compatibility between the sheave and the rope profile.