Cwb 2024 Study guides, Class notes & Summaries

CWB 2 Module 17 Questions The property of liquids that makes them try to reduce their surface area is known as: A) Capillary action B) Surface tension C) Viscosity - correct answer B) Surface tension True or False? "The ability of a liquid to wet a solid surface can be measured in terms of the contact angle." - correct answer True The phenomenon by which water rises up a narrow tube or by which liquid can penetrate a crack is known as: A) Capillary action B) Surface tension C...

CWB 2 All Module Exams Questions and Correct Solutions 2024 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 - 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 - An...

CWB 2 All Module Exams questions and answers 2024

CWB 2 Module 19 QuestionsThe upper limit of human hearing is approximately: A) 20Hz B) 20kHz C) 20MHZ - correct answer B) 20kHz A typical frequency used for ultrasonic testing of welds is: A) 2.25MHZ B) 2.25kHz C) 2.25Hz - correct answer A) 2.25MHZ Do transverse waves in a solid travel faster or slower than longitudinal waves? - correct answer Slower True or False? The energy carried by a wave is proportional to the square of the amplitude. - correct answer True The decr...

CWB 2 Module 19 The upper limit of human hearing is approximately: A) 20Hz B) 20kHz C) 20MHZ - correct answer B) 20kHz A typical frequency used for ultrasonic testing of welds is: A) 2.25MHZ B) 2.25kHz C) 2.25Hz - correct answer A) 2.25MHZ Do transverse (shear) waves in a solid travel faster or slower than longitudinal (Compressional) waves? - correct answer Slower True or False? The energy carried by a wave is proportional to the square of the amplitude. - correct answer ...

A Plasma is: A gas made up of positive ions and free electrons A liquid used to reduce adherence of spatter The main component in an inverter power source Always present in an electrical circuit ANSWER-A) A gas made up of positive ions and free electrons

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 - 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 - C) DCEN Which type of welding power source is used for the SMAW process...

CWB 2 Module 12 When a metal is subjected to load, it will be resisted by internal forces within the metal. The intensity of these forces through a given plane is known as ___________. - correct answer Stress Select the three ways in which a load can act on a cross-sectional area in a body. A) Perpendicular B) Tension C) Angular D) Compression E) Helixial F) Shear - correct answer B) Tension, D) Compression, F) Shear True or False? "Strain is the extension divided by the origi...

CWB 1 Exam 2024 Questions & Answers | 100% Correct | Verified

CWB 2 Module 7 Questions True or False? Weld metal shrinkage is not proportional to the amount of weld metal. - correct answer False True or False? Longitudinal residual stress may be as high as the yield stress of the base metal. - correct answer True True or False? There is no residual stress in a steel plate with mill rolled edges without any additional head treatment - correct answer False True or False? Oxy-fuel gas cutting along rectangular steel plates always causes ...