welding NCCER chapter 29306 questions and answers.

Annealing heat treatment that reduces the bitterness of the work carbide precipitation the process of carbides combining with chromium to create chromium carbide. thee result is a reduction of chromium and the corrosion resistance it provides. intergranular corrosion results in loss of chromium Heat Affected Zone (HAZ) the portion of the workpiece/base metal whose mechanical properties or microstructures have been or will be altered by the heat from welding, brazing, soldering, or thermal cutting process Interpass temperature the temperature of the base metal in the general area of the weld before the next pass is started. the definition of the area of the weld varies by the applicable welding code Sensitization the process by which carbide precipitation takes place loose on a table never store stainless-steel electrodes______________ full-face, supplied-air respirator for long term cutting or welding of materials that contain zinc, cadmium, or manganese, a welder should always wear an approved______________ Austenitic AISI 200 or 300 series of stainless steels are a part of which group of stainless steels? not grounded when setting up a welding machine for use, check to be sure that the electrode holder is____________ root pass the greatest challenge of an open-root v-groove weld is making the _______________ fuse the root pass into the tack weld feathering the end of a tack weld with a grinder helps to_________ uphill when making an open-root v-groove pipe weld of stainless-steel pipe in the multiple inclined (6G) position, a welder should start the root pass at the bottom of the pipe and weld _____________ upward travel direction with a 0-10-degree push angle when performing vertical ope-root v-groove welds on plate use an_____________ horizontally on two sets of pipe rollers when making an open-root v-groove pipe weld of stainless-steel in the flat (1G-ROTATED) position, position the pipe weld coupon _________ coated tubular electrodes that have a thin carbon steel cylinder filled with powdered metal containing chromium, nickel, and other alloys, along with an external flux covering, are called _____________ electrodes carbon when a stabilized metal is heated to between 800F (427C) and 1400F (760C), the columbium or titanium combines with the ______________ in the metal -15 and -16 usability designations for stainless steel SMAW electrodes include _____________ H when the basic class alloy inside a stainless-steel electrode has been modified with 0.04-0.08% carbon, the markings on the side of the electrode will include which addition letter(s) in the alloy modification designation position? 1G-ROTATED when the axis of the pipe being welded is horizontal and the pipe is slowly rolled while being welded on the top, the weld position is called ____________