ASVAB Shop Information Practice Test 374321

Question 2 of 5
Welding

Welding is a high-temperature process that involves melting the base metals in the objects to be joined to fuse them together. A filler metal is used to provide additional material to make up a joint that, depending on the weld type, can be stronger than the base materials alone. Oxyacetylene welding is a welding process that uses a torch fueled with oxygen and acetylene gases. Electric-arc welding utlizes electric current in a safer welding process (it doesn't involve burning explosive gases) that enables a wide variety of specialized applications like stick, MIG (metal inert gas), and TIG (tungsten inert gas) welding.

Which of the following statements about welding is not true?

a weld can often be stronger than the base materials alone

welding is done at higher temperatures than soldering

electric-arc welding is safer than oxyacetylene welding

no filler metal is required when welding