Massachusetts Construction Supervisor License (CSL) Practice Test

What is the most common method of fastening steel decking to steel joists or beams?

1. Riveting

2. Puddle, tack, or spot welding

3. Bolting

4. Welding with electrodes

The correct answer is: Puddle, tack, or spot welding

The most common method of fastening steel decking to steel joists or beams is through puddle, tack, or spot welding. This technique is widely used in steel construction due to its speed and efficiency. Welding provides a strong, suitable connection that can withstand significant loads and stresses, making it ideal for the structural requirements of steel decking. Puddle welds involve melting a small area of the decking and the underlying steel together, creating a strong bond. Tack and spot welding serve similar purposes, allowing for quick and effective attachment while maintaining the integrity of the structure. Although bolting is a viable fastening method, it is often used in cases where disassembly might be required in the future or where welding would be impractical. Riveting has become less common with advancements in welding technology, while welding with electrodes, typically used for thicker steel sections and not as convenient for thin decking, is less efficient for this application. Therefore, puddle, tack, or spot welding remains the preferred and most common fastening method for steel decking.