SMAW
What does SMAW stand for?
what is shielded metal arc welding
What tool is used for oxyacetylene cutting?
A torch
What is one thing you check first when diagnosing an engine?
Spark (willing to take compression
What is a farm level used for?
What are you doing when marking out a rafter?
measuring and marking angles for a roof
What is the purpose of the ground clamp?
It completes the electrical circuit and allows current to flow
What should be adjusted before lighting the torch
Gas pressure (oxygen and acetylene levels).
What does compression measure?
Pressure inside the engine cylinder (PSI)
What does it mean to "level" an instrument?
Adjusting it so it's perfectly horizontal
a speed square or a framing square
What does amperage control in welding?
it controls the heat of the weld
What do we set our regulators to for oxygen and acetylene
oxygen 25-35, acetylene 5-7
what does a strong spark look like?
A strong blue spark
What is a rod reading?
The measurement taken from the leveling rod.
What is a plumb cut?
a vertical cut that aligns the rafter with the ridge
Why is a proper gap important in a weld?
It ensures proper penetration and a strong weld.
What could happen if the flame is not adjusted correctly?
The cut may be uneven, rough, or not go through the metal.
Why is gap measurement important
It ensures proper ignition of the fuel-air mixture.
Why is it important to properly set up equipment?
to ensure accurate measurements
Why is accuracy important when marking out rafters?
to ensure proper fit and structural ability.
What happens if a weld bead is done incorrectly or unevenly?
The weld can be weak, crack, or fail.
What PSI is the danger zone for acetylene
15 psi
How do compression, spark, and gap work together to affect engine performance?
All three must be correct for the engine to run properly; if one is off, performance is affected or the engine won’t run.
It causes incorrect data and inaccurate results
What could happen if measurements are incorrect when building a structure?
the structure could be uneven, weak, or safe