Oxygen is represented by which color

• Red
• Green
• Blue
• Yellow

Acetylene 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
• 4
• 2
• 8

Oxygen & acetylene are sold by the ________________________.

• ounce
• gallong
• pound
• cubic foot

Gas leaks on an oxy-acetylene rig are checked with

• compressed air
• soapy water
• flame
• teflon

The acetylene line pressure should never exceed

• 5 psi
• 10 psi
• 15 psi
• 20 psi

The acetylene tank valve should be opened _________ turn for safety reasons.

• 3/4

• 1 1/4

• 1 1/2

• 2