North Carolina Building Contractor License Practice Exam

What percentage of its perimeter should a good weld have working when attaching steel deck?

1. 50 percent

2. 75 percent

3. 100 percent

4. 1 percent

The correct answer is: 50 percent

A good weld when attaching steel deck should ideally have a working weld on approximately 100 percent of its perimeter. This ensures that the weld provides the necessary strength and integrity to the steel connection. Full perimeter welding is critical in structural applications, as it helps distribute loads evenly and minimizes the risk of failure due to shear or tensile forces acting on the connection. The expectation for a good weld is generally based on standards that dictate the performance and safety requirements of structural components. It is vital in construction and manufacturing processes to adhere to these standards to ensure that structures are safe and stable. The first option reflecting 50 percent of the perimeter is not sufficient for structural integrity, as it may lead to weak points in the weld that could result in failure under load. Similarly, a suggested amount of 75 percent may still leave critical areas unprotected. The option of 1 percent is clearly inadequate for any practical application, as such a minute portion of the perimeter would not provide the necessary support to the steel deck. Instead, ensuring full weld coverage is essential for the overall durability and performance of the construction.