Welding FFA CDE Practice Questions with Answers

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