Nocti Test Welding Exam Questions and Answers | Graded A+ | Updated 2026

Nocti Test Welding Exam Questions and Answers | Graded A+ | Updated 2026 What does GMAW stand for - answer-Gas Metal Arc Welding GMAW is generally done with what polarity? - answer-Direct current electrode positive (DC+) What type of power source is generally used for GMAW welding - answer-Constant Voltage What does E stand for in ER70S-6 - answer-electrode What does "70" stand for in ER70S-3? - answer-tensile strength What mode of metal transfer allows for only flat/horizontal position GMAW welding - answer-Spray What gas mixture is generally associated with spray transfer on steel? - answer-80% AR/ 20% CO2 What gas mixture is generally associated with globular transfer on steel? - answer-90% AR/ 10%CO2 Inadequate gas flow can cause what defect in GMAW welding? - answer-Porosity What is generally not an effect of a worn or loose contact tip - answer-porosity What does STT stand for? - answer-Surface Tension Transfer What type of arc transfer is associated with STT? - answer-short circuitCold lap or lack of fusion is generally associated with what type of arc transfer - answer-Short Circuit What does the s stand for in the GMAW classification for ER70S-6 - answer-Solid What mode of metal transfer allows for consistent all position GMAW welding - answer-Short Circuit What gas mixture is generally associated with pulse transfer on steel? - answer-90% AR/ 10% CO2 What does SMAW stand for? - answer-Shielded Metal Arc Welding The majority of smaw welding is done using what two polarities - answer-Dc+ , AC The recommended power source for SMAW welding is what type - answer-Constant Current The AWS a classification of SMAW electrode E7018-H4R what does E stand for? - answer-Electrode Which is not a fix to arc blow - answer-Increase current (Amperage) The AWS classification of smaw electrode, E7018-H4R, what does the R stand for - answer-Moisture resistance The AWS classification of smaw electrode, E7024, what does the 2 stand for - answer-Flat/ Horizontal position A machine has a duty cycle of 300 Amps @ 20%. How long can you weld for at 300 amps continuously before the machine shuts down - answer-2 minutes What smaw rod is know as the "code rod" - answer-E7018What is the device inside the power supply that changes AC to DC - answer-Rectifier To reduce the risk of hydrogen cracking, which electrode would you select? - answer-E7018 In SMAW welding, what does "Hot Start" do - answer-Provides an additional boost of current when striking the arc For improved impact properties, select the correct electrode? - answer-E7018-1 What electrode is not used to weld vertical down - answer-E7018 What technique is often associated with E6010 electrodes - answer-Whip Which of the following is a fast fill electrode - answer-E7024 What is not a function of the coating elements found in SMAW welding electrode - answer-Provide mechanical and metallurgical properties of the weld deposit A Class A fire extinguisher can be safely used on an ____ fire - answer-Wood When welding in a confined space, the welder must have - answer-A watch person outside the space What component of an oxygen cylinder allows the product to be removed - answer-Valve assembly When medium gas welding, a number _____ filter lens should be used - answer-6 Information contained in the tail of a welding symbol might include - answer-Welding process Referring to the symbol below, the flag signifies a _____ weld - answer-Field