Oxy-Acetylene

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

Acetylene hoses and tanks have right handed threads.

• true
• false

A 350 cubic foot cylinder can supply acetylene at about ________ cubic feet per hour.

• 5
• 25
• 50
• 75

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

• Kerf
• Curf
• Edge
• Orifice