Question

arrange the steps for setting up air carbon arc cutting (cac - a) in the correct order.
start order
adjust the compressed air pressure.
connect the welding power source and ground clamp.
install the carbon electrode in the torch.
set the appropriate amperage.
test the system on scrap metal.
end order

Explanation:

The correct setup order for CAC-A follows logical preparation steps: first connect power/ground (basic electrical setup), then install the electrode (tool component), adjust air pressure (process medium), set amperage (electrical parameter), and finally test on scrap (safety/function check).

Answer:

1. Connect the welding power source and ground clamp.
2. Install the carbon electrode in the torch.
3. Adjust the compressed air pressure.
4. Set the appropriate amperage.
5. Test the system on scrap metal.