Welding Chapter 1

Oxygen flame cutting is a chemical reaction that occurs between the steel and ______ ______ ______.

• torch flame cone

• cutting oxygen stream

• fuel gas cylinder

• oxygen gas cylinder

The kindling temperature of steel is__________.

• 1300 degrees

• 1400 degrees

• 1500 degrees

• 1600 degrees

When the oxygen cutting jet burns the iron in the steel, which has been heated to kindling temperature by oxyfuel preheat flames, what is the result?

• welding

• soldering

• severing

• oxidation

When the oxygen stream and the preheated metal combine, what is formed?

• iron oxides

• kerf

• bead

• flux

If metal is heated and permitted to cool, _______ ______ form on the surface.

• light scales

• heavy scales

• light grooves

• heavy grooves

One advantage of the OFC process is that it is extremely _________.

• portable

• safe

• neat

• stable

The materials that can be cut with OFC are limited primarily to ________ materials.

• fibrous

• fibulous

• ferrous

• ferret