If a workpiece has a big diameter of 3.5 inches and a small diameter of 2.75 inches, what is the taper per foot for a taper length of 5.5 inches?

To determine the taper per foot for a workpiece with a bigger diameter of 3.5 inches and a smaller diameter of 2.75 inches over a taper length of 5.5 inches, you start by calculating the difference in diameter and then relate it to the taper length.

First, find the difference in diameter:

3.5 inches (big diameter) - 2.75 inches (small diameter) = 0.75 inches.

Next, convert the taper length from inches to feet, knowing that there are 12 inches in a foot:

5.5 inches = 5.5 / 12 = 0.4583 feet.

Now, to find the taper per foot, divide the diameter difference by the taper length in feet:

Taper per foot = Diameter difference / Taper length in feet = 0.75 inches / 0.4583 feet ≈ 1.636 inches per foot.

Thus, the correct calculation yields a taper of approximately 1.636 inches per foot. This matches the correct choice, reinforcing the understanding of how to compute taper per foot using differences in diameter and lengths measured in appropriate units. This knowledge is essential for accurate machining and fabrication processes, facilitating precise adjustments and measurements