If a line on a plan is drawn to a scale of 1 inch = 50 feet, what is the actual length of a line measuring 3 1/8 inches?

To determine the actual length of a line measuring 3 1/8 inches when the scale is set at 1 inch equaling 50 feet, first convert the fractional measurement into a decimal. Three and one-eighth inches can be converted by recognizing that one-eighth of an inch is 0.125, making the total measurement 3.125 inches.

Next, since the scale indicates that each inch on the plan represents 50 feet in reality, multiply the decimal measurement by 50.

So, the calculation would be:

3.125 inches × 50 feet/inch = 156.25 feet.

It seems the initial answer provided does not align with the correct calculation process based on the scale provided. The actual length corresponding to the 3 1/8 inches on the plan should reflect this calculation method to arrive at the real-world measurement. This approach is essential to ensure you accurately interpret plans and measurements in practical applications of electrical contracting.