Construction Supervisor License Practice Exam 2025 – All-in-One Study Guide for Exam Success!

To determine how many No. 10 screws are required for connecting steel ceiling joists to rafters for the specified conditions, it is essential to consider both the structural requirements and the load calculations involved.

In this scenario, the house has a width of 28 feet, and the roof is pitched at 5:12, which means for every 5 units of vertical rise, there are 12 units of horizontal run. This pitch will impact the load distribution on the joists and rafters. The ground snow load is given as 50 psf, which influences how much weight the roof frame must support.

Connections in structural framing, such as those between steel ceiling joists and rafters, typically require a sufficient number of screws to ensure stability and strength under load. The engineering guidelines and building codes provide specifications for the number of fasteners based on factors like the dimensions of the structure and the load it will bear. For the given load and dimensions, 6 screws would adequately secure the connection while allowing for a safety factor in the design.

Choosing six screws balances the need for structural integrity while adhering to recommended practices in construction. This approach also accommodates potential variations in load due to factors like snow accumulation or other environmental influences.

Therefore, the answer