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