Metal Cutting Techniques Quiz

MAPP gas, natural gas, propane, and acetylene can be used with oxygen to cut metal.

• True

• False

A cutting torch has five needle valves to control the oxyfuel flame.

• True

• False

Preheat holes are used to blow the molten metal away from the cutting section.

• True

• False

The correct oxygen and acetylene pressures of a particular torch are determined by following manufacturer recommendations.

• True

• False

To flame cut round stock, the cut should be started approximately 90° from the top edge.

• True

• False

The largest hole on the cutting tip is for oxygen.

• True

• False

If the cut is penetrating the thickness of the metal, a shower of sparks will be seen on the underside of the cut.

• True

• False

A bar clamped parallel to the cut can serve as a guide for a straight cut when beveling.

• True

• False

When cutting cast iron, cutting should be stopped and started as necessary to complete the cut.

• True

• False

The plasma arc cutting process can cut steel up to 10 times faster than an oxyfuel mixture.

• True

• False