(Practice Test Questions)
According to the AWS, the nominal composition of a brown shade-coded tungsten electrode is: -
ANStungsten and zero.25% zirconium oxide (natural tungsten is inexperienced)
Alloyed tungsten electrodes have some advantages over pure tungsten electrodes. The
following is not one of those advantages: - ANSlower electrode price
Spray, globular and brief-circuiting are phrases utilized in GMAW welding to describe -
ANSmode of metallic transfer thru the arc
The usable role for GMAW wires is not specified inside the class because it depends on: -
ANSa. The shielding gasoline
b. The twine diameter
c. The mode of metallic switch
CSA standard W59 requires that the electrode holding ovens for low-hydrogen electrodes be
saved at a minimum temperature of: - ANS120°C
When stepped forward mechanical homes (durability) of the weld metallic deposit are required,
the flux have to be formulated to transfer the smallest possible quantity of: - ANSOxygen
When production fused fluxes, the temperature at which the substances are melted collectively
is: - ANS1,500°C to 1,seven hundred°C
An electrode this is for use with DC electrode high quality contemporary simplest is: -
ANSE4910
The result of expanded nitrogen content within the final weld deposit will be: - ANSPorosity
Generally, as the percentage of carbon dioxide in an argon gasoline aggregate decreases, the
very last weld deposit can have: - ANSincreased strength residences because of a higher
manganese and silicon content material
Electrode retaining ovens are encouraged for: - ANSlow-hydrogen electrodes
The primary feature of cellulose as a coating component is to provide: - ANSgaseous safety