Exam 12: Gas Metal Arc Welding

Changes in the electrode travel angle will affect the weld bead shape and ____.

The gun angle, work angle, and ____________________ are names used to refer to the relation of the gun to the work surface.

The disadvantages of using the forehand welding technique are: weld thickness, welding speed, and ____.

Because a lap joint may not be as strong in all directions, it is important to weld all sides of the joint when possible.

The lap joint can be welded on one side or both sides with a ____.

If the wire feed speed is too high, the voltage is too high.

Butt joints are made by overlapping the edges of the two plates.

____ are commonly used to join the edges of plates and structural members.

____________________ welds are used when the strength of a full-length weld is not required, to speed up the welding process and reduce welding cost, to reduce welding heat distortion, or to help stop weld bead cracking.

One disadvantage of the backhand welding technique is limited visibility.

There are several reasons butt welds may be made as ____.

Usually, butt welds are made all the way along the length of the joint.

The ____ is made by tack welding one piece of metal on another piece of metal at a right angle.

The higher the wire feed speed, the lower the welding current.

Forehand, perpendicular, and ____________________ are the terms most often used to describe the gun angle as it relates to the work and the direction of travel.

The advantages of the ____ are: weld bead visibility, travel speed, and depth of fusion.

An outside corner joint is made by placing the plates at an angle to each other, with the edges forming a(n) ____________________.

The wire feed speed is generally recommended by the electrode manufacturer and is selected in ____.

The term perpendicular is used when the gun angle is at approximately ____ to the work surface.

A welded tee joint can be strong only if it is welded on both sides and has deep penetration.