Floor registers must resist a concentrated load on a 2-inch diameter disc applied to the most critical area of the exposed face. What is the minimum load in pounds?

Floor registers must resist a concentrated load on a 2-inch diameter disc applied to the most critical area of the exposed face. What is the minimum load in pounds?

• A. 100 pounds
• B. 150 pounds
• C. 200 pounds
• D. 250 pounds

Answer: (C)

The minimum load that floor registers must withstand, as specified for testing resistance to concentrated loads, is set at 200 pounds. This requirement is based on the need to ensure that floor registers can handle the potential stresses that occur in typical residential or commercial environments where foot traffic or heavy objects may impact them. This standard is critical for maintaining the structural integrity and functionality of the flooring and the registers themselves, especially considering that they are often located in high-traffic areas. By requiring registers to support a concentrated load of 200 pounds, it helps prevent damage and ensures safety for users in these spaces. In the context of the other choices, loads below this threshold (100, 150, or 250 pounds) do not meet the standardized safety requirements set forth for such installations. While options such as 250 pounds may seem more conservative, the code specifically designates 200 pounds as the minimum necessary for adequate performance, thus making it the correct choice.

The minimum load that floor registers must withstand, as specified for testing resistance to concentrated loads, is set at 200 pounds. This requirement is based on the need to ensure that floor registers can handle the potential stresses that occur in typical residential or commercial environments where foot traffic or heavy objects may impact them.

This standard is critical for maintaining the structural integrity and functionality of the flooring and the registers themselves, especially considering that they are often located in high-traffic areas. By requiring registers to support a concentrated load of 200 pounds, it helps prevent damage and ensures safety for users in these spaces.

In the context of the other choices, loads below this threshold (100, 150, or 250 pounds) do not meet the standardized safety requirements set forth for such installations. While options such as 250 pounds may seem more conservative, the code specifically designates 200 pounds as the minimum necessary for adequate performance, thus making it the correct choice.