A four-bend saddle has been fabricated in a length of 1/2-inch RMC to go over an obstruction. Based on the photo, determine the position of Mark 2 to lay out this saddle using 22.5° bends. Allow for the conduit to be connected to a junction box using locknuts.

Note: The values calculated for this question may be used for additional questions. (Round the answer to the nearest eighth inch. Answer the question in the form of a decimal.)

Distance to Mark 2 = ?

Question

16-08-2023
Engineering

College

Thank you for visiting A four bend saddle has been fabricated in a length of 1 2 inch RMC to go over an obstruction Based on the photo determine. This page is designed to guide you through key points and clear explanations related to the topic at hand. We aim to make your learning experience smooth, insightful, and informative. Dive in and discover the answers you're looking for!

A four-bend saddle has been fabricated in a length of 1/2-inch RMC to go over an obstruction. Based on the photo, determine the position of Mark 2 to lay out this saddle using 22.5° bends. Allow for the conduit to be connected to a junction box using locknuts.

Note: The values calculated for this question may be used for additional questions. (Round the answer to the nearest eighth inch. Answer the question in the form of a decimal.)

Distance to Mark 2 = ?

Answer :

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Final Answer:

Distance to Mark 2 = 9â…œ inches

Explanation:

To determine the distance to Mark 2 for laying out the four-bend saddle using 22.5° bends over the obstruction, we follow a systematic process. Start by calculating the setback for each bend. Given a 1/2-inch RMC, the setback for a 22.5° bend is found using the formula S = R x tan(A/2), where S is the setback, R is the radius of the conduit, and A is the angle of the bend.

For a 22.5° bend in a 1/2-inch RMC, the setback is approximately 0.1085 inches. Since there are four bends in the saddle, the total setback is 4 times this value, resulting in 0.434 inches.

Next, add the obstruction distance to the total setback. The photo does not provide specific dimensions, but it's crucial to allow for the connection to a junction box using locknuts. Assuming a standard distance for this connection, let's consider it as 9 inches. Therefore, the total distance to Mark 2 is the sum of the setback and the obstruction distance, which is 0.434 + 9 = 9.434 inches.

However, the question instructs rounding to the nearest eighth inch. Therefore, the final answer is 9â…œ inches. This ensures precision in the layout of the four-bend saddle over the obstruction, allowing for proper conduit connection to a junction box with locknuts.