METAL-(LURGY)
Name three non-ferrous metals
What is copper, aluminum, lead, nickel, tin, titanium, zinc and alloys such as brass
Name the document specifying welding parameters for a part/project that will include required machine settings
What is a WPS - Welding Procedure Specification
True or False:
Grinding is a cutting process
What is True
True or False:
All discontinuities are defects
What is False
CJP
What is Complete Joint Penetration
Name three mechanical properties of metal
What is hardness, brittleness, ductility, toughness, stress, tensile strength, compressive strength, shear strength, torsional strength, flexural strength, fatigue strength, or impact strength
Name two welding processes that use DCEN (direct current electrode negative) polarity.
What is GTAW (Gas Tungsten Arc Welding, aka Tig) and most self-shielded/inner-shielded FCAW (Flux Core Arc Welding) wires, and SAW.
Name the factor required with plasma arc cutting that is not required with oxy-fuel cutting
What is a complete electric circuit
True or False:
Arc strikes on the work are rejectable
What is False
D1.1 arc strikes are not rejectable,
D1.5 arc strikes are rejectable
DCEP
What is Direct Current Electrode Positive
Name three of the five types of cast iron
What is gray, white, malleable, ductile or special alloy cast irons
Arc control setting does this for SMAW - Shielded Metal Arc Welding aka Stick.
What is helps control dig, and prevent the electrode from sticking to the work
Name three gases that can be used for oxy-fuel cutting
What is acetylene, propane, MAP-Pro (methylacetylene, propyne and propadiene), propylene - (formerly known as MAPP), gasoline, natural gas
This defect is caused by gas being trapped in the weld.
What is porosity?
CAC-A
What is Carbon Arc Cutting Air/ Air Carbon Arc Cutting
Name the type of steel that has a two-phase microstructure consisting of both austenitic and ferritic steels
What is duplex stainless steel
True or False:
Amperage controls the height and width of the weld deposit
What is False
Amperage controls penetration. Voltage controls height and width of weld deposit
Name the abrasive particle typically used in water jet cutting
What is granulated garnet
This defect only occurs at the toe of the weld.
What is overlap?
SAW
What is Submerged Arc Welding
Name the "recipe" metallurgists use to create metals with specific properties in relation to the iron-carbon diagram. HINT: specific to temperature and cooling time
What is Isothermal Transformation Diagrams
In theory, when using Alternating Current, this percentage of heat is distributed to the work and this percentage to the electrode.
50/50,
50% to the work and 50% to the electrode
Name the type of cable that has allowed for advancement in laser cutting processes
What is fiber optic cable
This defect is caused by a rapid heating and cooling of the base metal adjacent to the weld.
What is HAZ cracking?
AHW
What is Atomic Hydrogen Welding
I can make a $1000 by doing this.
What is applying for the welder training scholarship?
https://www.aws.org/foundation/page/welder-training-scholarship