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A 22 1/2° offset has been fabricated in a length of 1-inch RMC. The left end of the conduit will be connected to a box using two locknuts. Determine the distance from the end of the conduit to the two center-of-bend marks to fabricate this offset. (Note: Thread length = 1/2 inch.)

Select the answer which indicates the correct distance to the marks.

a. 3 5/8 inches
b. 3 3/4 inches
c. 3 7/8 inches
d. 4 inches

Answer :

Final answer:

The distance to the center-of-bend marks for a 22 1/2° offset in a 1-inch RMC, after incorporating two locknuts, is closest to 3 5/8 inches.

Explanation:

The question involves calculating the distance to the center-of-bend marks when fabricating a 22 1/2° offset in a length of 1-inch Rigid Metal Conduit (RMC) where the left end of the conduit will be connected to a box using two locknuts.

To determine the distance from the end of the conduit to the marks, use the bending multiplier for a 22 1/2° offset, which is 2.6. Multiply the outside diameter of the conduit by the bending multiplier: 1 inch * 2.6 = 2.6 inches.

To incorporate the thread length and locknuts (each 1/2 inch), we add an additional 1 inch (1/2 inch per locknut) to the measure. The total distance to the center-of-bend marks should therefore be 2.6 inches + 1 inch = 3.6 inches, which is closest to the measurement of 3 5/8 inches from the provided options, considering that 5/8 inch is approximately equal to 0.625 inches.

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