Q:- When welding on construction site which type of power source would be considered to be the most unsafe:

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1. 110Volt main machine
2. 440Volt main machine
3. Diesel engine driven welding generator process
4. All welding hav the same safety factors

This entry was posted in AWS CWI Exam Part B Practical Questions, AWS CWI Questions and tagged , , , , , , .

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