Intro to Millwright Practice Exam

A chain wrench is likely to damage the surfaces of objects. True or False?

1. True

2. False

3. Only under heavy load

4. Only if misused

The correct answer is: True

A chain wrench is designed to grip and turn objects, typically those with cylindrical shapes, such as pipes or fittings. However, because it uses a chain to grip the surface of the object, the design inherently means that while it is very effective for applying torque, it can also cause marring or damage to more delicate or polished surfaces. As the chain wraps around the object, it exerts pressure that can scratch or dent the material, especially if the wrench is applied with significant force. The truth is that even if it's used properly, there is still a risk involved due to the nature of the tool and the force it applies. In many applications, especially where the surface finish is important, alternative tools might be preferred to avoid any potential damage. Therefore, the assertion that a chain wrench is likely to damage the surfaces of objects is indeed true.