Which of the following sizes requires a take-up of 8"?

The correct answer indicates that a bender size of 1 inch requires a take-up of 8 inches. In conduit bending, the take-up refers to the amount of extra length needed to account for the bend when cutting the conduit to length. The size of the bender corresponds to the diameter of the conduit being bent, and each size has an established take-up measurement based on the radius and method of bending used.

For a bender size of 1 inch, the 8-inch take-up is standard practice to ensure that the conduit will fit properly after bending. This take-up allows for the curve created by the bending process and ensures that the total length of the conduit remains within the required specifications for installations.

Other sizes listed, like 1/2", 3/4", and 1 1/4", have different requirements for take-up based on their respective bending characteristics. Understanding the correct take-up is essential for electricians and contractors to avoid mistakes when cutting conduits for installation.