Auto Body Repair Technology

While having a discussion, Technician A says that plug welds are used when a car is built in a factory.Technician B says resistance spot welds are used when a car is built in a factory.Who is correct?

During the welding process, either inert gas or active gas shields the weld from the atmosphere and prevents oxidation of the base metal.

Electronic shielding or protection is needed when welding near on-board computers (electronic control units [ECUs]) and sensor wiring.

In an MIG lap weld, the arc is directed to penetrate both pieces of metal, while triggering a timed impulse of wire feed.

A(n) ____ sometimes called a filter plate, is a shaded glass welding helmet insert for protecting your eyes from ultraviolet burns.

While having a discussion, Technician A says that if the tip-to-base metal distance is too long, the length of wire protruding from the end of the gun increases and becomes preheated, which increases the melting speed of the wire.Technician B says that if the tip-to-base metal distance is too long, the shield gas effect will be reduced.Who is correct?

MIG welders lay down weld beads at the average of 15 inches (381 mm) per minute.

Welding blankets are thick covers made of fire resistant cloth for protecting vehicle surfaces from heat, sparks, and weld spatter.

____ is an electric arc welding process that uses a tubular wire with flux inside.

Which of the following statements is LEAST-Likely true?

Lap and flange welds should be made only in repairs where they replace original factory lap or flange welds or where outer panels, but not structural panels, are involved.

____ is a paste that can be applied to parts to absorb heat and prevent warpage.

The weld face is the part of the joint where the wire electrode is directed.

All of the following are considered clamping tools for welding EXCEPT:

The term____ implies that the pieces are parallel with the bench or shop floor.

____ affects the base metal penetration depth, the speed at which the wire is melted, arc stability, and the amount of weld spatter.

When welding a horizontal joint, the best procedure is usually to start the arc at the top of the joint and pull downward with a steady drag.

A ____ on the back of a weld is an indication of good weld penetration.

Butt welds are formed by fitting two edges of adjacent panels together and welding along the mating or butting edges of the panels.

When welding near a vehicle computer, remove the computer from the vehicle to avoid electronic circuit damage.