Cwb level 3 - Study guides, Class notes & Summaries

CWB Level 3 Module 21 Welding Metallurgy of Steels Questions and answers 2024

CWB WELDING INSPECTOR LEVEL 1 - CHAPTER 3 EXAM 2024/2025

CWB Level 3 Module 21 Welding Metallurgy of SteelsWhat forms the largest group of commercially important alloys? - correct answer Steel Steels are alloys of iron with less than ____ % of carbon plus a wide range of other elements - correct answer 2 % Elements which form interstitial solutions with iron - correct answer Carbon, nitrogen, boron and hydrogen Elements which from substitutional solutions with iron - correct answer Manganese and Silicon Below 910 C, Iron is in ________...

CWB Welding Inspector Level 3 Exam Prep-with 100% verified solutions 2024

Complete the following: a) Chromium stabilizes the _____ form of iron b) Nickel stabilizes the _____ form of iron - ans ---a) bcc b) fcc If a straight chromium steel of 18% Cr and < 0.1 % C is heated to 1000°C will it transform to austenite or remain as ferrite? - ans ---remain as ferrite What is the predominant structure of an 18% Cr, 8% Ni steel at room temperature? - ans ---austenite The chromium content of a stainless steel is 20%. Is it likely this is a martensit...

CWB Welding Inspector Level 2 Exam (New 2023/ 2024 Update) Guide with Questions and Verified Answers_ All Modules Covered_ 100% Correct_ Graded A QUESTION Which has a "drooping" curve characteristic - CC or CV? Answer: CC QUESTION AC transformer welding power sources use a: (A) step-up transformer (B) step-down transformer Answer: (B) Step-down transformer QUESTION What is a diode used for in a welding machine? (A) To produce AC current ...

The maximum solubility of carbon in a iron is: (a) 2%. (b) 0.002%. (c) 0.02%. (d) There is no solubility. ANSWER-(c) 0.02%.

CWB Welding Inspector Level 3 Study Guide ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct

CWB Welding Inspector Level 3 Exam Prep (Latest 2024 / 2025 Update) Questions and Verified Answers | All Modules Covered | 100% Correct | Grade A Q: Fluxes that can dissolve the oxides on Al are ............ Answer: Halide compounds ( Fluorine, chlorine, Bromine etc.) Q: Chlorine gas from a Chloride flux in presence of an arc can create poisonous gas called .......... Answer: Phosgene (COCL2) or Mustard gas produced by the reaction of chlorine and carbon monoxide in the presence of intense light...