6832 –09 Oxy- Fuels Welding and Cutting

15 psi The maximum pressure for acetylene gas is ________ psi

Friction lighter The best tool for lighting the torch is a _____________.

Soapy water The proper procedure to check for leaks is to use _________ ________.

5 feet When not in use the acetylene and oxygen tank should be separated by a ____ foot wall

20 feet If not separated by a 5 foot wall the tanks should be at least ____ feet apart.

5 The most common tip for oxy-acetylene welding is a number _______

Neutral What kind of flame is best for welding, cutting and heating?

Red High carbon steel should be preheated to a _____ color before welding.

Not quite touch The white cone should be how far from the metal when welding?

Tip movement The width of the puddle is determine by the ______ __________.

Chained and Upright When transporting tanks, they should be ___________ and ___________.

Butt Two pieces of metal lying flat end to end is call a _______ weld

Lap weld A weld joint where two pieces of metal overlap is called a______ weld

Corner Weld A weld joint where two pieces make a 90 degree is called a tee weld or a _______ weld

Edge weld A ________ weld is when two pieces of metal are stacked on top of one another.

Fillet weld A ________ weld is when two pieces of metal form an angle such as a Tee Weld or a Corner Weld.

Same thickness The filler rod should be the _______ size (diameter) as the metal being welded.

Beveled Thick metal should be __________ before welded.

Tacked Pipe should be ________ on two sides before welding.

Fixed and rolled Two methods of pipe welding are _______ and _______.

Puddle The weld ______ is harder to control on out of position welds.

Bottom Up When welding vertical with the oxy-acetylene unit you should weld from the________ _______

Metal Container A ________ _________ should be used to catch the hot metal after cutting.

1/8 inch The inner cone should be ______ inches from the metal when cutting with the torch.

Square, curved When cutting with the torch, the top edge of the metal should be ______ and the drag line will be slightly _______

Drill a hole When cutting a hole in the center of a piece of metal it is a good idea to do what first?

When cutting a hole in metal, first drill a______ inch pilot hole. ¼ inch hole When cutting a hole in metal, first drill a______ inch pilot hole.

90 degrees When cutting metal, you should hold the torch at a _______ angle.

___________ and __________ does not melt the metal. Soldering or brazing ___________ and __________ does not melt the metal.

Brazing __________ uses a non ferrrous filler rod such as a bronze rod.

Brazing __________ uses a neutral flame that is above 800 degrees but is below the melting point of the metal.

Soldering ______________ uses solder

Flux When soldering always use a______ to help remove sulfides, oxides and nitrates

Sweating Soldering a copper fitting is also called _______ a joint

Soldering gun A propane torch, a soldering iron or a __________ __________ can be used to solder.

Heated Metal thicker than 3/8 inches should be ________ before being bent.

Cherry Red Metal should be heated to what color before bent?

Hardening ___________ metal makes it more brittle and gives it more strength.

OIL or Water When hardening metal, heat to cherry red then plunge into _______ or ________.

Tempering _____________ is done to reduce brittleness

Quenching To cool metal quickly in water is called ____________.

Crack Quenching too soon can cause some metal to shatter and ________.

Soft Quenching too late will cause the metal to be too _______

Annealing _______________ is the process of heating metal and cooling it slowly.

Hardening or Tempering Annealing metal reverses the process of _________ or __________.

Sand or Vermiculite Metal can be cooled slowly by placed it in a container of _________ or _______.

Changes When metal is heated and or cooled, it _____________ its characteristics.