Intro to Millwright Practice Exam

Which type of hammer does not create sparks when struck against a metal surface?

1. Dead Blow Hammer

2. Ball Peen Hammer

3. Claw Hammer

4. Sledge Hammer

The correct answer is: Dead Blow Hammer

The dead blow hammer is designed specifically to minimize rebound and the production of sparks. It typically has a hollow head that is partially filled with sand or shot, which absorbs the energy from the strike and reduces the amount of rebound that occurs when it hits a surface. This design allows for a controlled and effective transfer of force while preventing the hammer from bouncing back, which not only enhances safety but also reduces the risk of striking the hammer against metal surfaces in a way that would create sparks. This quality makes it particularly useful in environments where sparks could pose a risk, such as areas with flammable materials. The other types of hammers mentioned, including the ball peen, claw, and sledge hammers, do not have features that minimize spark production, and when struck against metal, they are likely to create sparks due to the harder metal compositions and lack of specialized design intended to absorb that energy.