Gmaw fcaw - Study guides, Class notes & Summaries

CWB Welding Inspector Level 1 Exam (New 2023/ 2024 Update) Questions and Verified Answers_ 100% Correct_ Graded A QUESTION For the FCAW, GMAW & SAW processes what does an increase in arc length do? a) Arc voltage does not change. b) Decreases the arc voltage drop across the arc. c) Increases the arc voltage drop across the arc. d) Amperage is increased. e) Makes no change to the amperage. Answer: c) Increases the arc voltage drop across the arc QUESTION The purpos...

3.1 Contractors In the absence of specific requirements in the governing design standard , at the option of the engineer what other standards shall the contractor be certified too ? If no standard is required what shall the contractor prove ? - W47.1 The contractor must prove their compentency to the engineer. 3.1.2 Welding processes What processes are covered by this standard ? - SMAW, GMAW, MCAW, FCAW, SAW, ESW, EGW, SW Filler metals and allied materials are classified under what standa...

A groove left in the face of a FCAW formed by excessive levels of dissolved gasses in the weld metal is known as a _______________________________? - Worm track FCAW is better than GMAW when welding dirty or rusty metal because the wire contains ____________________. - deoxidizers FCAW-G indicates what type of shielding? - Gas-shielded How are FCAW and GMAW similar? - They are both wire-fed processes. How can a welder prevent undercut when employing a weaving technique with FCAW? - Stoppin...

_________ Forces the wire to make better electrical contact with the contact tube. - Answer-cast ___________ are less likely to absorb moisture than the seamed electrode. - Answer-Seamless electrodes ________Weld faces tend to trap slag along the toe of the weld. - Answer-convex _______Helps the weld by protecting the hot metal from the effects of the atmosphere. - Answer-slag A disadvantage of the perpendicular technique is limited visibility of the weld - Answer-True A fillet weld is the...

________ Forces the wire to make better electrical contact with the contact tube. - cast ___________ are less likely to absorb moisture than the seamed electrode. - Seamless electrodes ________Weld faces tend to trap slag along the toe of the weld. - convex _______Helps the weld by protecting the hot metal from the effects of the atmosphere. - slag A disadvantage of the perpendicular technique is limited visibility of the weld - True A fillet weld is the type of weld made on_________. - A l...

CWB Welding Inspector Level 1 Exam (Latest 2024 / 2025 Update) Questions and Verified Answers | 100% Correct | Grade A Q: From the welding problems identified below which one of the five does not fit the pattern established by the other four? a) Insufficient throat. b) Incorrect bevel angle. c) Loss of shielding gas. d) Improper fit up. e) Use of wrong consumable. Answer: a) Insufficient throat. Q: A 10 mm fillet weld has a nominal: a) Throat dimension of 10 mm. b) Area of 10 sq. mm. c) Leg size...

CO2 shielding gas on FCAW - correct answer widely used, low cost, deep arc penetration, relatively inert at room temp., dissociates at arc temps., allow for oxidation in the weld pool. Textbook: 6.5-1 - 6.5-4 Ar-CO2 shielding gas for FCAW - correct answer allows for greater oxidation resistance, most common ratio is: 75% Ar, 25% CO2, generally gives welds higher tensile & yield strengths than welds of 100% CO2, spray mode mixture, Excessive amounts of filler materials (Mn, Si, Al) will change...

Which of the following statements is correct? - API 577 provides guidance to the API authorized inspector on welding inspection. The actual throat of a weld is best described as: - The shortest distance between the weld root and the face of a fillet weld. The term "arc blow" refers to which of the following? - The deflection of the arc due to magnetic forces. An autogenous weld is a weld that is best described by which of the following? - A weld made without filler metal. In weldin...

TECHNOLOGY (WELDING) EXAM 7 COMPLETE WITH CORRECT ANSWERS 1. The melting rate of the wire in the GMAW, FCAW processes depends on? A) Voltage per unit length B) Shielding gas flow rate C) Current density D) Ampere per unit length of the wire 2. In a fillet weld fracture test, the specimen is broken with? A) The fillet weld in tension B) The fillet weld in compression C) No specific method needs to be adopted D) Suitable machining

Brief description of Basic Core wires - Answer-Have a limestone / Fluorspar flux core, arc transfer is globular Brief description of Rutile core wires - Answer-Good operational and positional capabilities, with easy slag removal Can DC straight polarity be used for FCAW? - Answer-Yes for some self shielded wires Describe DCRP: - Answer-Direct current reverse polarity Describe the two FCAW processes commonly used? - Answer-Gas shielded and self shielded Explain the 2/3's 1/3rd ratio in th...