An adjustable wrench is convenient for tightening which type of nuts?

• A. Standard hex nuts
• B. Driven nuts
• C. Odd sized nuts
• D. Nuts with flat spots

Answer: (C)

The main idea being tested is the versatility of an adjustable wrench to fit many different nut sizes. Its jaw width can be moved, so you can set it to match odd-sized nuts that don’t have a standard, fixed wrench size. This flexibility lets you tighten or loosen those irregular nuts without needing a whole set of different wrenches. While you can use an adjustable wrench on standard hex nuts, a fixed-size wrench that matches the nut often gives a more secure grip; the real advantage here is handling the nonstandard sizes. Nuts with drive shapes or extra features require specialized tools, but for irregular sizes, the adjustable wrench is the practical choice.