Term
|
Definition
|
|
Term
|
Definition
| MARK LEFT ON THE FACE OF A CUT FROM MOVEMENTS |
|
|
Term
|
Definition
| DEVICE THAT CHANGES CYLINDER PRESSURE TO WORKING PRESSURE IN ONE STEP |
|
|
Term
|
Definition
| DEVICE THAT CHANGES CYLINDER PRESSURE TO WORKING PRESSURE IN TWO STEPS |
|
|
Term
|
Definition
| CYLINDER MADE FROM ONE PIECE HIGH CARBON STEEL |
|
|
Term
|
Definition
| TWO PART CYLINDER NORMALLY USED FOR FUEL GASSES |
|
|
Term
| HIGH PRESSURE CYLINDER VALVE |
|
Definition
| MADE OF BRASS, HAS DOUBLE SEATED VALVE SEALS, HAS BURSTING DISC SAFETY DEVICE |
|
|
Term
|
Definition
| MADE OF BRASS, HAS O-RING TO SEAL VALVE STEM |
|
|
Term
| HOW IS ACETYLENE STORED IN A CYLINDER? |
|
Definition
|
|
Term
| WHY ARE FUEL CYLINDERS NEVER LAID ON THEIR SIDES? |
|
Definition
| THEY ALL HAVE FLAMMABLE LIQUID IN THEM THAT WILL LEAK |
|
|
Term
|
Definition
| A SAFETY DEVICE THAT HAS A FUSIBLE CENTER THAT MELTS IN HIGH TEMPERATURES TO RELIEVE EXCESS PRESSURE |
|
|
Term
| WHAT IS THE HEAT OF RECOMPRESSION |
|
Definition
| WHEN GASSES ARE COMPRESSED THEY HEAT UP. GAS COMING OUT OF A CYLINDER LOSE PRESSURE AND THEN REGAIN IT AS THEY FILL THE INLET TUBE AND REGULATOR. AS THE GAS REGAINS ITS PRESSURE IT HEATS UP |
|
|
Term
|
Definition
| AS PRESSURE ENTERS THE BOURDON TUBE IT TRIES TO STRAIGHTEN, THIS ACTION PULLS ON THE CALIBRATING LINK, WHICH TURNS THE SECTOR GEAR, WHICH TURNS THE PINION GEAR ATTACHED TO THE NEEDDLE ON THE FACE OF THE DIAL |
|
|
Term
| WHAT IS THE MAIN MOVING PART OF A REGULATOR? |
|
Definition
|
|
Term
| WHAT ARE THE THREE PURPOSES OF OXYGEN WHEN USING OFC? |
|
Definition
| 1. OXIDIZE THE STEEL 2. GIVE HOTTER PREHEAT FLAMES 3. BLOW OUT THE SLAG |
|
|
Term
|
Definition
| THE RAPID OXIDATION OF STEEL CAUSED BY APPLYING AN OXYGEN STREAM TO HEATED STEEL |
|
|
Term
| DESCRIBE HOW TO MAKE A CUT START |
|
Definition
| HEAT THE STEEL TO AN ORANGE/YELLOW STATE, SLOWLY OPEN THE CUTTING JET, & ADVANCE ACROSS THE PLATE |
|
|
Term
|
Definition
| the flame mmixture of oxygen and fuel are balanced |
|
|
Term
| WHAT IS AN OXYDIZING FLAME? |
|
Definition
| A FLAME THAT HAS EXCESS OXYGEN |
|
|
Term
| WHAT IS A CARBONIZING FLAME? |
|
Definition
| A FLAME WITH EXCESS FUEL GAS |
|
|
Term
| HOW FAR SHOULD THE CUTTING TIP BE HELD ABOVE THE METAL WITH ALTERNATE FUELS? |
|
Definition
|
|
Term
| WHERE SHOULD A CUT BE RESTARTED WHEN POSSIBLE? |
|
Definition
| IN THE WASTE SIDE OF THE CUT |
|
|
Term
| WHERE SHOULD A CUT BE STARTED ON A BOLT HEAD OR RIVET? |
|
Definition
| AT THE TOP MIDDLE OF THE BOLD HEAD OR RIVET |
|
|
Term
| A CUT THAT HAS A ROUNDED TOP SHOULDER AND HEAVY SLAG IS CAUSED BY? |
|
Definition
|
|
Term
| A CUT THAT HAS THE SLAG MELTING BACK TOGETHER IN THE KERF IS CAUSED BY? |
|
Definition
| TRAVEL SPEED TOO SLOW OR PREHEAT FLAMES EXCESSIVELY HOT |
|
|
Term
| A CUT FACE THAT HAS PRONOUNCED LAG LINES INDICATES? |
|
Definition
|
|
Term
| A CUT FACE THAT HAS THE TOP EDGE STRAIGHT AND THE BOTTOM EDGE BELLIED OUT INDICATES? |
|
Definition
|
|
Term
| TO MAKE A LONG CUT A __________ SHOULD BE USED. |
|
Definition
|
|
Term
| WHEN CHANGING CYLINDERS, THE FIRST THING TO DO IS? |
|
Definition
|
|
Term
| WHAT NEEDS TO HAPPEN BEFORE ATTACHING THE REGULATOR TO THE CYLINDER? |
|
Definition
| CRACK THE CYLINDER TO REMOVE ANY DEBRIS FROM THE VALVE |
|
|
Term
| HOW DO YOU CHECK FOR LEAKS AT THE REGULATOR? |
|
Definition
| OPEN THE CYLINDER, SHUT THE CYLINDER, & WATCH THE CYLINDER GAUGE FOR LOSS OF PRESSURE OVER SEVERAL MINUTES |
|
|
Term
| WHEN SHOULD A PUSH ANGLE BE USED ON OXY-FUEL CUTTING |
|
Definition
| ON PLAE UNDER 1/2 INCHE THICK |
|
|
Term
| HOW DOES PLATE THICKNESS AFFECT PUSH ANGLE WITH OFC? |
|
Definition
| THE THINNER THE METAL, THE MORE THE PUSH ANGLE SHOULD BE USED. |
|
|
Term
|
Definition
| THE FLAME BURNING BACK INTO THE TORCH OR BEYOND |
|
|
Term
|
Definition
| THE FLAME GOING OUT AND EXPLOSIVELY RE-IGNITING |
|
|
Term
| WHAT IS THE MAIN CAUSE OF BOTH FLASHBACKS AND BACKFIRES? |
|
Definition
|
|
