oxyfuels

What type of regulator is this?

• Argon

• Acetylene

• Oxygen

• CO2

The oxyfuel cutting process creates oxides that mix with molten iron and produce dross, which is blown from the cut by a jet of _.

• pure nitrogen

• pure oxygen

• carbon dioxide

• cooling water

What threading direction does this regulator turn?

• right

• down

• up

• left

Answer explanation

All Fuel regulators and gas hoses are notched and are left hand threaded, so you will never confuse an oxygen line with fuel.

Oxyfuel cutting is best suited for use on_.

• steel alloys

• ferrous metals

• nonferrous metals

• stainless steel

Describe what is wrong is this picture

A friction lighter produces sparks when its steel surface is rubbed with a piece of _.

• flint

• soapstone

• graphite

• steatite

What is the best option to light a cutting torch?

• Match

• Lighter

• Flint striker

• butane hand warmer

Before opening cylinder valves, verify that the adjusting screws on the oxygen and fuel gas regulators have been_.

• tightened

• closed

• loosened

• purged

What is the tool that is being shown in the picture?

• monkey wrench

• torch wrench

• open ended wrench

• cylinder key

What devices are pictured here?

• check valves

• caps

• flow valves

• flashback arrestors