OXYLFUEL CUTTING BASIC
THE OXYFUEL CUTTING PROCESS CREATES OXIDES THAT MIX WITH MOLTEN IRON AND PRODUCE DROSS, WHICH IS DROSS FROM THE CUT BY A JET OF
PURE OXYGEN
A TYPE OF OXYFUEL CUTTING TOOL THAT USES STEEL PIPE CONTAINING MAGNESIUM AND ALUMINUM CORED POWER OR RODS FOR HEAVY INDUSTRIAL CUTTING APPICATION AND DEMOLITION WORK IS
EXOTHERMIC OXYGEN LANCE
THERE ARE THREE TYPES OF OXYFUEL FLAMES
NEUTRAL FLAME, CARBURING FLAME, AND OXIDIZING FLAME
BEFORE HOLES OR SLOTS CAN BE CUT IN A PLATE, THE PLATE MUST BE
PIERCED
WHEN CORRECT PORTIONS OF FUEL GAS AND OXYGEN ARE FED TO A FLAME THE FLAME IS SAID TO BE
NAUTRAL FLAME
CARBON DIOXIDE, ARGON AND NITROGEN ARE ALL GASES THAT ARE SUITABLE FOR
PURGING EXPLOSIVE FUMES FROM CONTAINERS
THE MOST COMMON MATERIAL USED FOR MARKING CUTTING LINES ON METAL IS A FROM OF HEAT RESISTANT CALLED
SOAPSTONE
WHEN OXYFUEL CUTTING EQUIPMENTIS BEING SHUT DOWN HOW SHOULD THE FUEL GAS AND OXYGEN REGULATOR ADJUSTING SCREW BE POSITIONED AFTER BLEEDING THE REMAINING GAS IN THE HOSES
BOTH SCREWS LOOSE
ON A PORTABLE OXYFUEL TRACK BURNER THE CUTTING TORCH CAN BE ANGLED IN A PLANE THAT IS PERPENDICULA TO THE TRACK BY USING THE TORCH
BEVEL ADJUSTMENT
CREATING A GROOVE IN THE SURFACE OF A WORKPIECE IS A PROCESS OF
GOUGING
USE A PIECE OF __________ OR TAG TO WRITE THE PROBLEM ON THE CYLINDER
SOAPSTONE
WHAT BASIC TYPE OF OXYFUEL CUTTING TORCH IS DESIGNED FOR USE WITH FUEL THAT IS SUPPLIED THROUGH A REGULATOR FROM A PRESSURIZED FUEL STORAGE CYLINDER
POSITIVE PRESSURE TORCH
IMMEDIATELY AFTER SETUP AND PERIODICALLY THEREAFTER, OXYFUEL EQUIPMENT MUST BE TESTED FOR
LEAKS
A WASHING OPERATION USED A SPECIAL TORCH TIP WITH A LARGE CUTTING HOLE THAT PRODUCE
LOW-VELOCITY STREAM OF OXYGEN
METAL THAT CONTAIN IRON ARE CALL
FERROUS METAL
OXYFUEL CUTTING PRODUCES _________
INTENSE LIGHT AND HEAT
SAFETY DEVICES USED ON REGULATORS, HOSES, AND TORCHES TO PREVENT REVERSE GAS FLOW AND PROTECT AGAINST FIRES AND EXPLOSIONS ARE
CHECK VALVES AND FLASHBACK ARRESTORS
AN OXIDIZING TORCH FLAME IS ONE THAT HAS A
EXCESS OF OXYGEN
THE PROCESS OF BURNING A SMALL HOLE THROUGH THE METAL WHERE AND OXYFUEL CUT CAN BE STARTED IS CALLED
PIERCING
A LOUD SNAP OR POP THAT CAN BE HEARD AS A TORCH FLAME IS EXTINGUISHED IS CALLED
BACKFIRE
OXYFUEL CUTTING, ALSO CALL FLAME CUTTING OR BURNING, IS A PROCESS THAT USES A FLAME AND OXYGEN FROM A CUTTING TORCH TO CUT
FERROUS METALS
A LIGHTER THAT AIR COMPOUND OF CARBON AND HYDROGEN THAT IS FORMED BY DISSOLVING CARBIDE IN WATER IS
ACETYLENE
GAS CYLINDERS CAN BE LIFTED TO HIGHT__________
USING A CYLINDER CAGE
AN OXYFUEL CUT THAT HAS GOUGING AT THE BOTTON A PRONOUNCED BREAK IN THE DRAG LINE AND AN IRREGULAR KERF IS MOST LIKELY TO OCCUR WHEN THE
TRAVEL SPEED IS TOO FAST
THE GAP PRODUCED BY CUTTING PROCESS IS CALLED
KERF