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CWB Welding Inspector Level 2 Exam (New 2023/ 2024 Update) Guide with Questions and Verified Answers_ All Modules Covered_ 100% Correct_ Graded A R223,33
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CWB Welding Inspector Level 2 Exam (New 2023/ 2024 Update) Guide with Questions and Verified Answers_ All Modules Covered_ 100% Correct_ Graded A
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Course
CWB Welding Inspector Level 2
Institution
CWB Welding Inspector Level 2
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 ...
CWB Welding Inspector Level 2 Exam (New 2023/ 2024 Update) Guide with Questions and Verified Answers _ All Modules Covered _ 100% Correct _ Grade d 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 (B) To produce DC current Answer: (B) To produce DC current QUESTION The typical duty cycle for a Class 1 industrial welding power source is: (A) 20% (B) 35% (C) 60% (D) 150% Answer: (C) 60% QUESTION What current/polarity is used when welding aluminum with GTAW? (A) DCEN (B) DCEP (C) AC Answer: (C) AC QUESTION True or False: a welding cable size designation "No. 4" is larger than a "No. 2". Answer: False. Cable sizes (smallest -to-largest) are: 4 - 3 - 2 - 1 - 1/0 - 2/0 - 3/0 - 4/0 QUESTION To increase the melting rate (burn -off rate) of a SMAW electrode, which polarity would you use? Answer: DCEN QUESTION Is it possible to operate a wire -feed welding process using constant current? Answer: Yes - but you must use a voltage -sensing wire -feeder to obtain a self -regulating arc. QUESTION A transformer is a device that: (A) transforms AC to DC (B) transforms DC to AC (C) changes the value of AC Answer: (C) changes the value of AC QUESTION A rectifier is a device that: (A) transforms AC to DC (B) transforms DC to AC (C) changes the value of AC Answer: (A) transforms AC to DC QUESTION I = V/R and V = IR are examples of what law? Answer: Ohm's Law QUESTION In Ohm's Law (I = V/R), what do each of the letters mean? Answer: I = Current (in amps) R = Resistance (in ohms) V = Voltage (in volts) QUESTION What benefit to the weld deposit does cellulose provide in a SMAW electrode coating? Answer: Improves ductility QUESTION The impact toughness of the weld deposit for the B-G 49A 3C G6 (ER49S -6) electrode is: (A) not specified (B) 27 J at 0 degrees Celsius (C) 27 J at -30 degrees Celsius (D) 27 J at -6 degrees Celsius Answer: (C) 27 J at -30° Celsius QUESTION The result of increased nitrogen content in the final weld deposit will be: (A) cracking (B) undercut (C) poor bead appearance (D) porosity
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