The working pressure of oxygen in OFC is generally anywhere between 100-125 psi.

The most widely used fuel gas is propane.

To ensure that it is not possible for someone to connect the hose to the wrong gas, oxygen hose fittings have left-hand threads and fuel gas hoses have right-hand threads.

Never use copper tubing to transport acetylene gas.

Which of the following is NOT an advantage of OFC?

Which of the following is NOT used as a fuel gas in OFC?

Acetylene is extremely unstable at pressure over ___ psi.

Which of the following produces the hottest flame?

If an acetylene cylinder has been mistakenly stored in a horizontal position, it must be returned to an upright position for a minimum of ___ hours before it is safe to use.

The chemical used to stabilize acetylene is ___.

Which of the following gases is generally delivered by a pipeline, as opposed to being supplied by compressed gas cylinders?

The oxygen in OFC actually causes the ___ in molten steel to burn.

The working pressure of oxygen during the OFC process is generally anywhere between ___ psi.

A special ___ hose carries oxygen and fuel gas from the cylinders to the cutting torch.

Which of the following is a characteristic of oxygen?

To ensure that it is not possible for someone to connect the hose to the wrong gas, oxygen hose fittings have ___ threads and fuel gas hoses have ___ threads.

There are two grades of hose for fuel gases. ___ is suitable for any fuel gas: acetylene, propane, propylene and natural gas. ___ is suitable for use with oxygen-acetylene only.

Withdrawing acetone from a cylinder along with acetylene can cause ___.

Flashbacks can cause catastrophic failure of ___.