OXY-FUEL
What is the primary purpose of a welding helmet?
To protect the eyes and skin from UV and infrared radiation
what should you NOT keep in your pocket during welding?
Butane lighter or matches
Which shade of lens is recommended for medium amperage stick welding?
shade 10-12
proper ventilation is required in a welding shop to?
remove hazardous fumes and gases from the welders breathing zone
what color is the oxygen hose on an oxy-fuel setup?
Green
what should you use to light an oxy-fuel torch?
stricker(friction lighter)
before starting work, you should inspect your welding leads for?
frayed insulation or exposed copper wire
what is the purpose of a "fire watch"?
to monitor the area for sparks or fires during and after welding
how far should flammable materials be kept from welding area?
35 ft
What is the best practice when opening cylinder valves and regulators?
Oxy-one full revolution. fuel-quater revolution
hands free of contaminants
what color is the fuel (acetylene) hose on an oxy-fuel set up?
Red
why should you never weld in wet or damp conditions?
it increases the risk of electric shock
the work clamp (ground clamp) should be attached to?
the work piece or the welding table
what are the symptoms of "metal fume fever"?
Flu-like symptoms (fever,chills,nausea)
what type of fire extinguisher is best for general shop use, including electrical fires?
ABC
if a cylinder valve is stuck, what should you do?
tag it out and notify the supplier
"flash burn" to the eyes feels like?
having sand in the eyes
who is ultimately responsible for your safety in the shop?
you
Screens and curtains around the welding booth are used to?
protect others from arc rays and sparks
Acetylene cylinders should always be stored and used in what position?
upright
why is it dangerous to use oil or grease on an oxygen regulator?
it can cause an explosion or fire in the presence of high pressure oxygen
What type of clothing material is safest for welding?
100% cotton or wool
when using a grinder in the welding shop, what PPE is required in addition to safety glasses?
face shield
galvanized steel should be welded with extreme caution because it releases?
zinc oxide fumes
what should you do before welding on a container that previously held flammable liquids?
ensure its properly cleaned and purged according to safety standards