Intro to Millwright Practice Exam

What is the main purpose of a Johnson bar?

1. Mixing concrete

2. Pulling vehicles

3. Prying objects

4. Cutting wood

The correct answer is: Prying objects

The primary purpose of a Johnson bar is to serve as a prying tool, which is reflected in the correct answer. A Johnson bar is designed specifically for leveraging and lifting heavy objects, making it particularly useful in scenarios where an operator needs to maneuver equipment, move large objects, or separate items that are closely fitted or stuck together. Its long handle allows for the application of considerable force, enabling the user to pry or lift heavy loads with relative ease. In contrast, while mixing concrete, pulling vehicles, and cutting wood are tasks that require different tools and equipment, they do not align with the specific function of a Johnson bar. Mixing concrete typically involves the use of mixers or shovels, pulling vehicles would require tow trucks or chains, and cutting wood is done with saws. The unique design and operational function of the Johnson bar distinctly categorize it as a prying tool, emphasizing its utility in mechanical tasks related to lifting and moving.