Cwb 2 All Module Exams 2024 Questions With Verified Solutions Already Passed A+

CWB 2 ALL MODULE EXAMS 2024 QUESTIONS WITH VERIFIED SOLUTIONS ALREADY PASSED A+ A Plasma is: A) A gas made up of positive ions and free electrons B) A liquid used to reduce adherence of spatter C) The main component in an inverter power source D) Always present in an electrical circuit - CORRECT ANSWER A) A gas made up of positive ions and free electrons To increase melting rate (burn-off rate) in the shielded metal arc welding (SMAW) process, which polarity should be used? A) DCEP B) ACEP C) DCEN D) ACEP - CORRECT ANSWER C) DCEN Which type of welding power source is used for the SMAW process? A) Constant Current B) Constant Voltage C) Pulsed Current D) Pulsed Voltage - CORRECT ANSWER A) Constant Current The purpose of a drooping welding power source is to produce: A) Constant voltage regardless of the current demand B) Constant arc length regardless of current C) Nearly constant current regardless of voltage fluctuations B) Low open circuit voltage - CORRECT ANSWER C) Nearly constant current regardless of voltage fluctuations CWB 2 ALL MODULE EXAMS 2024 QUESTIONS WITH VERIFIED SOLUTIONS ALREADY PASSED A+ A self-regulating welding arc is produced by a: A) Constant current power source with a constant speed wire feed system B) Constant voltage power source with a voltage sensing wire feed system C) Constant current power source D) Constant voltage power source with a constant speed wire feed system - CORRECT ANSWER D) Constant voltage power source with a constant speed wire feed system Short circuit current is determined by the: A) Voltage in the circuit B) Static characteristic of the power source C) Position of welding D) Skill of the welder - CORRECT ANSWER B) Static characteristic of the power source A Transformer is a device that: A) Transforms AC to DC B) Works only to change a DC voltage C) Changes the value of an AC voltage but does not change the frequency D) Is made from a semiconductor - CORRECT ANSWER C) Changes the value of an AC voltage but does not change the frequency A Rectifier is a device that converts: A) DC current to AC current B) AC Current to a high value DC current C) DC current to a high value DC current CWB 2 ALL MODULE EXAMS 2024 QUESTIONS WITH VERIFIED SOLUTIONS ALREADY PASSED A+ D) AC current to DC current - CORRECT ANSWER D) AC current to DC current Microprocessor controls are used in the more modern welding power sources to: A) Provide more sophisticated levels of control for the welding system B) Allow welding variables to be stored for us