Michigan Residential Builders License Practice Test

What device uses an explosive load to make fastenings into construction materials?

1. Electric drill

2. Powder-actuated tool

3. Hammer drill

4. Pneumatic stapler

The correct answer is: Powder-actuated tool

The correct answer is the powder-actuated tool, which is specifically designed to use an explosive charge to drive fasteners, such as nails or studs, into hard materials like concrete or steel. This tool operates safely and efficiently in construction settings, allowing for rapid fastening with the power generated from the small explosive charge. In contrast, an electric drill is used primarily for drilling holes and does not involve any explosive mechanism. The hammer drill, while capable of drilling into tougher materials, employs a mechanical hammering action and also does not utilize an explosive load. A pneumatic stapler operates on compressed air to drive staples into materials, differing fundamentally from the explosive mechanism employed by a powder-actuated tool. Understanding the specific function and operation of these tools is essential for selecting the appropriate equipment in construction tasks.