Mr. Navarro's Chapter 6 Exam

Group of oxygen cutting processes that use an oxyfuel gas flame to heat metal to its kindling temperature before a high-pressure stream of oxygen is directed onto the metal to cut it.

• cutting lever

• Oxyfuel gas cutting (OFC)

Torches that use a mixing chamber in the body or at the tip

• machine cutting torch

• equal-pressure torche

Torches use both equal gas pressures and low-fuel gas pressures?

• Injector torches

• machine cutting torch

Made of copper alloy, but some tips are chrome

• cutting lever

• cutting tips

Brings the temperature of the metal to be cut above its kindling point.

• tip cleaner

• preheat flame

Creates a low-pressure area that pull the fuel gases in and mixes them.

• coupling distance

• Venturi

The distance of the inner cones of the flame when a cut is made and should be between 1/8"-3/8".

• coupling distance

• drag

The distance that the bottom of the cut is behind the top, to be reduced before stopping.

• drag

• soapstone

The lowest temperature at which a material will burn turning it into cherry red.

• drag lines

• kindling point

What statements are true about a mixing chamber?

• where oxygen is mixed with the fuel gas to produce a high-temperature preheating flame.

• is located in the body or in the tip of the torch

• is larger than both the gas inlet and outlet causing turbulence and mixing the gases thoroughly.

• All of the above are true