GMAW EXAM QUESTIONS WITH 100% CORRECT ANSWERS.

Electrode extension Answer: Distance between the end of the contact tube and the end of the electrode Inductance Answer: Rate of the rise of current as opposed to final amount of current available Out-of-position welding Answer: Any welding position EXCEPT flat Pulsed spray transfer (GMAW-P) Answer: Spray transfer where the power source quickly pulses between a peak and background current for a fixed period of time Short-circuit transfer Answer: GMAW application when LOW currents, LOW voltages, and SMALL diameter wires are used to weld in all positions Spray Transfer Answer: GMAW application when HIGH currents, HIGH voltages and LARGER diameter wires are used to weld thicker metals in flat positions Travel Angle Answer: Relationship of the electrode AXIS with respect to the DIRECTION of travel Travel Speed Answer: The linear rate at which the arc is moved along the weld joint Work angle Answer: Angle between the electrode axis and the adjacent work surface Consumable Answer: Can be used up; electrode wires used in GMAW Contaminants Answer: Elements in the air, impurities in shielding gases, or chemical reactions between base metals and electrodesGas Metal Arc Welding (GMAW) Answer: Process that produces coalescence of metals by heating them with an arc between a continuous filler metal electrode and a workpiece Coalescence Answer: Union; a combination Inert Answer: An element that has no active properties