safety
When working in a boiler according to OSHA what safety measures must be taken?
Hot work permit
Fire watch
Hole watch
Welding intermittent welds on both sides of tee will
control distortion over the entire joint
Before entering the shop what must be on
safety glasses, ear plugs, boots , and pants
what polarity do you run a 6011 on
AC,DC- , DC+
The amount of time a welding machine can operate at a given amperage within a 10-minute period before it needs to cool down.
Duty Cycle
When working in an environment not accustomed to welding or burning other than a hot work permit what else does OSHA require?
Fire watch
A gas heated to at least a partially ionized condition enabling it to conduct an electrical current
Arc Plasma
What are the 2 methods of ventilation
Mechanical and natural
If i was going to stick weld on dirty metal and only had a DC + machine what would i use
6010
A delay that allows the shielding gas to flow for a few seconds before the arc starts, purging the air from the torch.
Pre-flow
When working in an environment that is not accustomed to welding in burning according to OSHA you need to fill out what?
Hot work permit
The molten metal area where the electrode wire is deposited to create the weld joint
Weld pool
What is a SDS sheet
A sheet that comes with everything to explain the hazards
what does the 8 in 7018 tell you
can be welded on all polarities
The primary setting for controlling the heat and penetration of the weld.
Amperage (Amps/Current):
If I have a wood fire, what class of fire extinguisher do I use?
class A
any material that is electrically conductive and 7 inches or more thick. - what process
Plasma cutting
What is each students responsibility for PPE everyday
To inspect it
If I was tig welding on dirty carbon steel what filler wire would i use
ER70s-6
A power source setting where the amperage is held constant and the voltage fluctuates.
Constant Current (CC)
When welding or burning in an area with flammable material on the floor that can’t be moved, what does OSHA want you to do?
Wet the floor down
the blue banded tungsten contains 2% of what element?
Lanthanum
What does a person have to be to be a fire watch
Familiar with the area, know where the fire extinguishers/fire alarms
What filler wire would you to Tig braze to unlike metals
Silicon bronze
Also known as reverse polarity, the electrode is positive and the workpiece is negative. This creates deeper penetration and is common in MIG and some Stick welding.
DC Electrode Positive (DCEP)