weld 165 final

Oxygen is represented by which color

• Red
• Green
• Blue
• Yellow

the fuel is represented by which color

• Blue

• Red

• Yellow

• Green

In the Oxy-Acetylene rig, acetylene is used to

• produce the flame
• oxidize the metal
• blow metal from the cut
• stabilize the flame

In the Oxy-Acetylene rig, oxygen is used to

• cool the metal
• produce the flame
• blow metal from the cut
• stabilize the flame

The maximum safe rate for drawing acetylene from a cylinder is ____ of the cylinder’s capacity per hour.

• 1/7
• 1/4
• 1/2
• 3/4

The correct shade lens for brazing or cutting with the oxy-acetylene rig is

• 1
• 5

• 2
• 8

Acetylene hoses and tanks have right handed threads.

• true
• false

The width of cut produce by a cutting operation is called a

• Kerf

• chips

• Edge

• Orifice

Cylinder regulators are used to

• set line pressure

• set tank pressure

• determine tank size

• determine tip size

Gas leaks on an oxy-acetylene rig are checked with

• compressed air
• soapy water
• flame
• teflon