MW Chapter 4

Which of the following processes uses a consumable flux-covered metal electrode?

• SMAW

• GMAW

• GTAW

• All of the above

In the ____ process, a wire feeder continuously supplies metal electrode, which comes in the form of wire on a large spool.

• SMAW

• GTAW

• GMAW

• All of the above

In FCAW, the flux material that cleans and shields the weld area is ____.

• on the electrode wire

• applied ahead of the weld through a hopper

• in the hollow electrode

• applied with a brush

Which statement about GTAW is false?

• The welder manually operates the tungsten electrode holder and the filler rod.

• The GTAW process is used on nonferrous metals.

• GTAW produces no metal spatter

• A consumable tungsten electrode is used.

Which of the following is used to clean the metal during torch brazing?

• A flux

• A strong detergent soap

• Water at a temperature above 180°F (82°C)

• Soapstone

During brazing, which of the following may present health hazards?

• Zinc

• Beryllium

• Cadmium or phosphorus

• All of the above.

In the oxyfuel gas cutting process, a jet of ____ causes the rapid oxidation or burning of the steel after the metal is heated to a melting temperature.

• air under pressure

• high-pressure acetylene

• pure oxygen

• water

Flash welding is a(n) ____ process.

• arc welding

• solid-state welding

• explosion welding

• resistance welding

The letters FW stand for ____.

• friction stir welding

• flash welding

• friction welding

• flux welding

Why is submerged arc welding referred to as submerged?

• The arc is submerged in or covered by a thick layer of flux material and cannot be seen.

• The welding is done under water.

• The arc is covered by a thick layer of filler material.

• The base metal is submerged and the arc is shielded by an inert gas.