G2 Gas Fitter Practice Exam

Which type of grinder is commonly used to grind bevels and clean weld spatters of pipes?

1. Table grinder

2. Portable angle grinder

3. Belt sander

4. Wet grinder

The correct answer is: Portable angle grinder

The portable angle grinder is commonly used for grinding bevels and cleaning weld spatters of pipes due to its versatility and ease of use in tight spaces. This tool features a rotating disc that can be fitted with various types of grinding wheels and attachments, making it suitable for a range of applications, including metalworking. Its compact design allows the operator to maneuver it easily around and on pipes, ensuring that welds can be ground down and finished to a smooth edge. The high speed and efficiency of the angle grinder enable quick removal of material, making it ideal for preparing surfaces for further welding or treatment. Additionally, the ability to use different attachments means that it can adapt to specific tasks, such as grinding, polishing, or cutting, all of which can be essential in pipe fitting and metal fabrication work. In contrast, options like the table grinder are typically stationary and designed for different applications, while belt sanders are better suited for finishing surfaces rather than aggressive material removal in weld and bevel applications. Wet grinders, while effective for precise and smoother finishing, do not have the same application for quick and rough grinding tasks typical in pipe work.