| A | B |
|---|
| Oxygen hoses are usually what color and have what type of threads? | green and right hand threads |
| Acetylene hoses are usually what color and have what type threads? | red and left hand threads |
| What is piercing? | to penetrate straight through the metal |
| How can you cut a 45 degree angle with an oxyfuel torch? | tack a piece of angle iron to the base on its open face |
| What other gases can be used with oxygen instead of acetylene? | Propane, Natural, MAAP, propylene |
| What does SMAW stand for? | Shielded Metal Arc Welding |
| What does GTAW stand for? | Gas Tungsten Arc Welding |
| What does GMAW stand for? | Gas Metal Arc Welding |
| What does FCAW stand for? | Flux Core Arc Welding |
| What does PAC stand for? | Plasma Arc Cutting |
| What does CAC-A stand for? | Air Carbon Arc Cutting and Gouging |
| What does AWS stand for? | American Welding Society |
| What is a welding code? | a listing of rules that apply to a particular weld |
| Would SMAW be performed with Constant Current or Constant Voltage? | CC/constant current |
| Would GMAW/FCAW be performed with Constant Current or Constant Voltage? | CV/constant voltage |
| Would GTAW be performed with Constant Current or Constant Voltage? | CC/constant current |
| Would PAC be performed with Constant Current or Constant Voltage? | CC/constant current |
| Would CAC-A be performed with Constant Current or Constant Voltage? | CC/constant current |
| Would oxygen acetylene cutting or welding be performed with Constant Current or Constant Voltage? | CV/constant voltage |
| What are the major components inside a GMAW/FCAW gun? | Liner, diffuser, contact tip, electrode wire, insulator, nozzle |
| How is the electrode wire fed to the gun? | With the wire feed rollers |
| What common gases are used for shielding the weld from the atmosphere while cooling? | 75% argon and 25% CO2 |
| What are the common electrode sizes? | 0.23, 0.35, 0.45 |
| In FCAW what would shelf shielding be? | Using flux in the wire as the only shielding gas |
| In FCAW what would dual shielding be? | Flux in the wire and gas are used |
| What type of gas is best for GMAW welding of mild steel? | 75/25 mixed gas |
| What should you do if your wire is not feeding correctly from your MIG gun? | make sure the wire isn't tangled |
| What are major compenents of the PAC equipment? | torch and lead, clamp, power supply |
| The idle arc is established where? | between electrode and nozzle |
| Where does high frequency pilot arc come from? | when the lit torch is brought near the metal |
| What type of gases are used for shielding? | air, nitrogen, oxygen, argon-hydrogen |
| What is another application for gas that a PAC unit may require? | Cooling the machine |
| What type of electrode does PAC use? | Replaceable Tungsten |
| What is a flow meter? | same as a regulator but uses a floating ball to measure rather than a dial needle |
| CAC-A uses a jet of what to blow the molten metal away? | air |
| What are the major components of a CAC-A? | welding machine, air compressor, CAC-A torch, carbon graphite electrode |
| If your CAC-A electrode diameter is 1/2" what will your groove width be? | 1/2" |
