AIDS

Medium carbon steel contains

.30 to .50 percent carbon

When a backing strip of the same material as the base metal is used the root face should be

6.4 mm (1/4)

Which of the following is a thermal process seldom used due to the deposits left behind which can lead to weld defects

Air carbon arc cutting

When brushing aluminum use stainless steel brushes that have only been used on

Aluminum

Which letter prefix when used in the AISI numbering system. Indicates acid Bessemer carbon steel

B

Which of the following materials is not a common joint backing material

Cast iron

To achieve proper penetration for each layer during multilayer surface welding

Cleaned after every layer

Grinding wheels containing aluminum oxide, silicon carbide and other materials have a composition that require

Consultaion of the sds/msds for recomended respiratory system

The 5 basic types of joints are butt, lap, corner, t joint and

Edge joint

Lap joints, t joints or corner joints can be welded using

Fillet welds

Which of the following is an advantage of mechanical joint prep over the thermal method

Less heat input

U groove welds are formed by preparing two matching j grooves that require

More prep Time but less weld material

A pneumatic tool that uses a number of blunt steel needles to remove surface oxidation is called a

Needle scaler

The requirement for use of a wps is often listed

On the blueprints, notes, or on tail of welding symbol

Beveling equipment made for pipe is sometimes called

Pipe end prep laths

Grinding wheels selected for use must be rated equal to or greater than the grinders

Rpms

When a metal piece is pulled in opposite directions to determine its breaking point, it is a test of its

Tensil strength

Torsion applied to a weld joint refers to a force

Twisting the metal in opposite directions

The best approach to gouging seems or cracks is

Using a nibbler

Never directly or indirectly view an electronic arc without

Using a properly tinted lense

A type of copper alloyed steel that protects itself from damaging oxidation by creating a hard tough layer of oxidation on its surface is called

Weathering steel