NEIEP Mechanics Practice Exam

With a 10' length of 3/4" rigid conduit requiring a 90-degree bend and a 16" stub height, where will the hickey arrow align if there is a 7" take up?

1. 7 inches from the end

2. 9 inches from the end

3. 10 inches from the end

4. 12 inches from the end

The correct answer is: 9 inches from the end

To determine where the hickey arrow will align with a 10-foot length of 3/4" rigid conduit requiring a 90-degree bend and a stub height of 16 inches, while accounting for a 7-inch take-up, it’s essential to understand how take-up affects conduit bending. In conduit bending, the take-up is the amount of conduit needed to allow for the bend itself. It is typically measured from the end of the conduit. When there's a specified take-up, you have to subtract this measurement from the overall length to determine where the hickey arrow aligns. In this case, the total length of the conduit is 10 feet (or 120 inches). After accounting for the 7-inch take-up, you deduct this from the total length: 120 inches (total length) - 7 inches (take-up) = 113 inches. However, to find the correct portion along the conduit where the hickey arrow aligns when making the bend, it's important to consider where the bend starts. For a 90-degree bend, the arrow will be aligned closer to the point where the bend begins. With a 16-inch stub height being required, the position of the hickey arrow will need to account for this height