Welding FFA CDE Already Rated A+

Welding FFA CDE Already Rated A+ What term correctly identifies the reduction in voltage, caused by resistance, that occurs between the power supply and the load? ️Voltage drop Which of the following lens shades is most effective at reducing the brilliancy of light and screening out the harmful infraded ultra- violet rays produced during arc welding? ️#12 shade lens What colors are appropriate for the oxygen hose on oxyacetylene cutting and welding equipment? ️Either a black hose or a green hose are approved When oxyacetylene cutting torch is operating, what does a loud squealing or hissing noise indicate? ️The oxyacetylene mix is igniting inside What is the name of the metal joining process where two pieces of metal are heated to a point of melting and the melted metals flow together? ️Fusion Welding What type of flame is used for most oxy-fuel welding procedures when welding on mild steel? ️Neutral Flame What electrical device is a necessary component of an electrical welding machine and is used to step up or step down the voltage and amperage as needed to perform welding operations? ️Transformer Which of the following safety concerns related to welding is more likely to occur gradually over an extended period of time? ️Hearing loss caused by extended exposure to elevated sound levels Which of the following statements is correct with respect to safety glasses while welding? ️Safety glasses should be worn continuously while working with or near metal working activities In electrical terminology, what is the meaning of the abbreviation AC? ️Alternating Current Which of the following colors are correct for oxygen and acetylene hoses? ️Red for acetylene, green for oxygen On a basic constant current arc welding machine, what does the primary/main adjustment control? ️Amperage On a typical shielded metal arc welding E7018 electrode, the 70 indicates what value for tensile strength? ️70,000 psi tensile strength What welding agency or entity does the acronym AWS indentify? ️American Welding Society Ductility is the ability of metal to do what before it breaks? ️Elongate What is the length of the most commonly used electrode for the process of shielded metal arc welding? ️14 inches What is a common name for the shielded metal arc welding process? ️Stick welding What would be a negative effect of insufficient shielding gas flow in the gas metal arc welding process? ️Porosity Which of the following terms describes the appropriate power source for the gas metal arc welding process? ️Constant voltage What type of power supply is used for the flux core arc welding process? ️Constant voltage On a direct current arc welding machine, what electrical component converts the incoming alternating current into direct current for welding? ️A rectifier What is another name used to describe the gas metal arc welding process? ️Metal inert gas welding What is the name of the cleansing agent used to prevent the formation of oxides, release trapped gases, and slag and cleanse the metal chemically during the welding, brazing, and/or soldering process? ️Flux What is the proper name for the stick welding process? ️Shielded metal arc welding (SMAW) The National Electric Manufacturers Association (NEMA) has classified electric arc welders primarily by duty cycle. What is the minimum duty cycle rating of a NEMA Class I machine? ️60% What is the recommended eye protection shade number for a welding helmet lens used when welding with 1/8 inch electrode? ️No. 10 lens shade Which of the following shielded metal arc welding electrodes is designated as a low hydro