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Welder Practice Test: MIG/MAG Welding
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MIG/MAG welding, also known as gas metal arc welding (GMAW), is a welding process that uses a DC electric arc to fuse metal in a joint area.

Related: Welder Practice Test: Gas Welding

Welder Practice Test: MIG/MAG Welding
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25 Questions

1. Which type of core wire is suitable for welding carbon steel, alloy steel and stainless steel under FCAW?
2. Why different type of pressure rollers is used in FCAW?
3. What happens when the electrode extension is increased?
4. How the pre-heating temperature is checked before welding wrought iron or cast metals in GMAW process
5. What type of lens shade is to be fixed in helmet while doing MIG WELDING?
6. What is the lens shade fitted in a helmet as per the recommendation of welding code for setting of 150 Amps for MMAW?
7. Why GMAW is called MIG/MAG?
8. How many types of flux cored wires are used in FCAW
9. What type of power source is commonly used with a voltage sensing wire feeder?
10. Which electrode wire is more suitable for carbon steel fabrication in GMAW process?
11. Which welding process is done by an active gas?
12. What are the distinct differences between GMAW and FCAW equipment?
13. Why is a fibre washer required and what cylinder gas requires it?
14. Which is adjusted in electron beam welding to eliminate the defect of porosity?
15. Which types of welds are often used to assist assembly or to maintain edge alignment during welding?
16. List 3 forms compressed gases may be supplied for welding
17. What current and polarity is generally used with GMAW?
18. How arc is ignited in GMAW process?
19. What does a flow meter do and what does it measure?
20. How to protect from the toxic fumes during welding operation?
21. What is the required arc voltage used for short circuit transfer?
22. What is the temperature produced in GMAW?
23. What type of joints are made by the groove welds in GMA welding?
24. What are the positions used in GMAW?
25. Which type of electrode provides protective slag in flux cored arc welding?

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