strain; strained; strainer; straining at the leash; All ENGLISH synonyms that begin with 'S'
Anything interfering with the strength of the compressive stress waves (7) during operation such as. blank-firing (free-running) or prying with the tool, can lower breaker performance and cause tool. fatigue. The breaker must be at a 90Â° angle to the face of the rock. (D)Blank-firing. Blank-firing the breaker without the tool pressing on a rock causes the energy that normally travels. out the tool into the rock (8), to impact the retainer pins (9) and front head causing excess stress to. these components.
Trap Rock. A construction industry term used for dark-colored igneous rocks used to make crushed stone. Crushed Trap Rock ready for use in a construction project. Trap rock is any dark-colored igneous rock that is used to produce crushed stone. Image Â© Brilt and iStockphoto.