It is okay to use welding equipment you have no training with when it is similar to equipment you already use.

No. even if the equipment is similar you have to have specific training and Welding you have to use specific equipment and it can be dangerous if you don't know the guidelines

No, there is a big risk of injury since you have no training and what equipment is similar to welding?

Explanation:

wood carving remains today the primary sculptural art form of the sub saharan continent. african art history shows the earliest wooden sculptures from the 17th c are attributed to the kuba, central zaire but the earliest surviving sub-saharan sculpture is a zoomorphic head found in 1928 in central angola.

i hope this .

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: