NCCER Oxyfuel 2

When cutting with an oxyfuel torch, what should you do with your safety glasses?

• Wear them under your goggles or face shield.
• Lay them on the table.
• Put them in your pocket.
• Keep them on top of your head.

When adding oxygen to a burning fuel it will cause it to …

• blow out the flame

• burn rapidly and very hot

• cool down the flame temperature

• sputter and pop

Fuse plugs in an acetylene cylinder are designed to melt at a temperature of about ____ degrees Farenheit.

• 150
• 212
• 500
• 1000

Which of the following is NOT a fuel gas used in oxyfuel cutting?

• Propane
• Propylene
• Natural Gas
• Nitrogen

Which of the following statements about oxygen and acetyelne hoses is true?

• The oxygen hose is longer than the acetylene hose.

• The oxygen hose is red and the acetylene hose is green.

• The oxygen hose is green and the acetylene hose is red.

• The acetylene hose has larger diameter than the oxygen hose.

Which torch tip would be best suited for cutting the head off of a rusty old bolt?

• standard torch tip
• gouging tip
• rivet cutting tip
• flue tip

A track torch is used to cut…

• straight lines or bevels
• intricate shapes
• anything drawn on a computer
• holes pierced into a plate

NCCER recommends using this to transport cylinders to a workstation.

• forklift
• pallet jack
• hand truck
• a strong back

This flame has too much oxygen.

• Acetylene
• Carburizing
• Neutral
• Oxidizing

If the torch tip touches the work surface or a hot piece of dross breifly interupts the flame, a ______ can occur, causing a pop which can spatter molten dross.

• flashburn
• backfire
• flashback
• burnback