Question

why is smaw good for welding outdoors?

it is a very portable process
it is very inexpensive compared to other welding processes
it doesnt require an external supply of shielding gas
all of the above

Explanation:

Analyze the portability of SMAW

Using the SMAW knowledge point
Shielded Metal Arc Welding (SMAW), commonly known as stick welding, requires minimal equipment (just a power source, electrode holder, ground clamp, and electrodes), making it highly portable for outdoor field work.

Evaluate the cost of SMAW

Using the SMAW knowledge point
SMAW equipment is relatively simple and has a lower initial purchase cost compared to more complex systems like GMAW (MIG) or GTAW (TIG).

Analyze shielding gas requirements

Using the Shielding Gas Function knowledge point
SMAW uses a consumable electrode covered with flux. The flux coating burns to produce its own protective gas shield, meaning it does not require an external cylinder of shielding gas that could easily be blown away by outdoor wind.

Determine the correct option

Since portability, low cost, and the lack of external shielding gas are all valid reasons why SMAW is highly suited for outdoor environments, all three individual statements are correct.

Answer:

• (A) It is a very portable process
• (B) It is very inexpensive compared to other welding processes
• (C) It doesn't require an external supply of shielding gas
• (D) All of the above (Correct answer)