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Welding

	What tungsten electrode and shielding gas do I use for tig welding?
	What is straight and reverse polarity?
	What size of cutting tip and welding nozzle do I use for oxygen and acetylene?
	What shade of filter lens do I need?
	What size of welding cable do I need?

Safety

	What sizes and types of fire extinguishers are available and how do I use them?
	How do I choose the right pipe marker?
	What are the requirements for signs and labels in the workplace?
	What materials are available for signs and labels?
	What does STEL and TWA mean?
	What does "intrinsic safety" mean?
	I'm not a chemist, but can you help me with some chemical definitions and properties for hazardous gases?
	Is there an easy way to test my employee's exposure to harmful chemicals?
	What is the difference between maintenance, petroleum, and chemical sorbents?
	What is 29 CFR Part 1910.134?
	How do I select the right glove for the right job?