You should never weld or cut on ______________, because water vapor may expand and explode.

The types of clothing recommended for welding are wool or cotton, cuff-less pants and shirts, and ____________.

Regardless of what's in a cylinder, ____________ should never be used to test leaks.

The filter plate needs to be protected from ________ and _________.

To protect your lungs from welding fumes, proper ___________ needs to be provided.

Failure to protect your eyes from the intense electrical arc can cause _____________.

The best way to avoid electrical shock is through proper ______________.

The darkest lens shade recommended for the largest diameter electrodes is ________________.

What determines the lens shade required?

A welder can be burned by all except _____________.