During the test development process, experts from the occupation identify written materials an experienced worker must be able to read on the job. A readability analysis is then performed on those materials. When the written portion of the test is constructed, care is taken to ensure its readability parallels and does not exceed the reading level identified by the test development committee. Job Ready, Experienced Worker and Customized. However, it can be assumed that any good curriculum will be based on the critical core competencies required in that occupation.
Tensile strength is the resistance a metal has to being bent compressed pulled apart twisted.
For GMAW - MIG of aluminum and stainless steel, the recommended type welding current is alternating current high frequency direct current reverse polarity direct current straight polarity direct current straight polarity high frequency. Inert gas is kept flowing after the welding arc is broken in order to shield the ceramic cup purge the torch lines of argon shield the tungsten and the work from contamination keep the flow meter from freezing up. 5. The only supplies needed for the written assessments are a good supply of soft-lead pencils with erasers, pencil sharpener, scrap paper, a clock or stopwatch, and a chalkboard for recording time and other information. The participant is to weld the root pass throughout the entire joint length using the vertical-up direction. Participant should not tack weld on back of test plate.