How to Start Using Classroom Assessment Techniques in Your Classroom by @n8ngrimm | Ecology of Education http://bit.ly/aArU3h Great post! How to Use Classroom Assessment Techniques in Your Classroom http://bit.ly/cekUHZ ~> Formative assessment moves student learning forward.
Flux-cored arc welding. Flux-cored arc welding (FCAW or FCA) is a semi-automatic or automatic arc welding process. FCAW requires a continuously-fed consumable tubular electrode containing a flux and a constant-voltage or, less commonly, a constant-current welding power supply.
A number of potentially hazardous materials are employed in fluxes, coatings, coverings, and filler metal used in welding and cutting or are released to the atmosphere during welding and cutting. These include, but are not limited to, the materials itemized in paragraphs (f) (5) through (12) of this section.