Such as welding - Study guides, Class notes & Summaries

MIG Welding Test Questions and Answers Already Passed What is the primary shielding gas used in MIG welding? Argon or a mixture of Argon and Carbon Dioxide is commonly used for shielding in MIG welding. Why is the wire feed speed critical in MIG welding? The wire feed speed controls the amount of filler material deposited and directly impacts the weld’s quality and penetration. How does improper voltage affect a MIG weld? Too high voltage can cause excessive spatter and a flat b...

FDNYC G60 COMPLETE STUDY GUIDE 2023 UPDATED & APPROVED SOLUTION G-60 - Use of oxygen and flammable gasses, or LPG or CNG for any hot work COF exception - Torch operations for jewelry FDNY permit - Storing using or handling oxygen and flammable gas in excess of 400scf (LPG, CNG or scetylene) oxidizing gass in excess of 504scf Portable LPG must not be stored when the capacity of the container is greater than? - 16.4 oz Portable CNG containers must not be stored then the capacity is greate...

CHST Exam Prep Q&A 2022-2023. From a safety stand point which of the following is a lagging indicator? - OSHA incidence rate A safety program begins begins by: - Developing a policy statement. How should a manager discipline a first offense minor rule infraction. - Oral reprimand. What is the most important factor in accident prevention. - Management support. Which federal agency is likely user an activity hazard analysis on a construction project? - U.S. Army corps of Engineers ...

con 237 DAU| 142 questions| with answers 2023 You have a requirement for eight units of a non-commercial item. Each item is estimated to cost $35,000. The Director of Training for the installation has a request to purchase 25 televisions and 25 DVD recorders for the new training facility that will open next month. Each television will cost approximately $525, and each DVD recorder about $150 Simplified acquisition procedures can be used The preferred type of item to satisfy agency needs...

GTAW Welding Questions and Answers 100% Pass How does the welder achieve a stable arc in GTAW? By maintaining a consistent distance between the tungsten electrode and the workpiece. What is the purpose of using a backing bar in GTAW? A backing bar provides support and helps contain the weld pool, preventing burn-through on thin materials. What types of materials are most commonly joined using GTAW? GTAW is often used for joining stainless steel, aluminum, and other non-ferrous ...

MIG and TIG Welding Test Questions and Answers Rated A+ How does the diameter of the tungsten electrode affect the welding process? Larger diameter tungsten allows for higher amperage and deeper penetration, while smaller diameters are better for thinner materials. What is the significance of cleaning the base metal before welding? Cleaning removes contaminants such as rust, oil, and dirt, which can lead to weak welds or defects. What is a common indication of poor gas coverage i...

GTAW (TIG) Questions and Answers 100% Pass What is the ideal angle for the TIG torch when welding thin materials? The ideal angle for the TIG torch on thin materials is typically around 15 to 20 degrees to ensure even heat distribution. How does using a larger tungsten electrode affect the welding process? Using a larger tungsten electrode can increase heat input and stability but may require adjustments to arc length and travel speed. Why is it crucial to select the right gas fo...

GMAW Welding Questions and Answers Graded A+ What is the primary advantage of using GMAW over other welding processes? GMAW allows for high-speed welding with less operator fatigue due to its continuous wire feed, making it efficient for production settings. How does the choice of filler material impact the properties of the weld joint in GMAW? Using the correct filler material can enhance the mechanical properties and corrosion resistance of the weld joint, ensuring it meets the de...

Rheobase - the lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time - the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) - Charge= I(current) x T(time) Furman's formula - Energy(microjoules)= I(current)xV(voltage)xT(pulse width) Ohms law formula - Voltage(electromotive force)= I(current/flow of electrons) x R(resistance to current flow in ohms) Functional Refractory P...

Welding Level 3 29303 FCAW-PIPE Questions and Answers Already Passed In what situations would a welder prefer FCAW over other welding methods? A welder might prefer FCAW in outdoor environments where wind could affect shielding gas, as FCAW can utilize a self-shielded flux core to maintain arc stability. How does the welding position influence the choice of FCAW techniques? The welding position can influence the selection of wire diameter, travel speed, and voltage settings; vertical ...