Pneumatic staplers and nailers are commonly called ___.

• A. Nailers
• B. Staplers
• C. Tools
• D. Guns

Answer: (D)

The main idea is recognizing the common nickname for these air-powered fasteners. Pneumatic staplers and nailers are often called guns because their form and use resemble a firearm: a handheld tool with a trigger that drives fasteners in rapid succession. On job sites people say “nail gun” or “staple gun” to refer to the tool in general, regardless of whether it’s specifically a nailer or a stapler. The term guns captures the whole family of tools that deliver fasteners, not just the type of fastener being driven. Calling them tools is too broad, and using the specific names “nailers” or “staplers” doesn’t reflect the common, interchangeable job-site nickname.