Self shielded flux cored wires are: - ANSWERbetter able to tolerate air currents.
What do the first two digits of a shielded metal arc welding electrode classification indicate? - ANSWER
The FCAW wire electrodes, compared to GMAW wire electrodes, are: - ANSWERmore expensive.
The submerged ...
CWB Welding Inspector Level 1 -
Chapter 3 2024 UPDATE!!
Self shielded flux cored wires are: - ANSWERbetter able to tolerate air currents.
What do the first two digits of a shielded metal arc welding electrode classification
indicate? - ANSWER
The FCAW wire electrodes, compared to GMAW wire electrodes, are: -
ANSWERmore expensive.
The submerged arc welding process: - ANSWER
The primary control on a SMAW power source is: - ANSWERcurrent.
The SAW fluxes are: - ANSWERclassified in conjunction with the welding wire
forming an electrode/flux designation.
How is the arc shielded when using the submerged arc welding process? -
ANSWERBy a blanket of granular flux
Welding power sources are broadly classified as: - ANSWERconstant current and
constant voltage
Electrodes for flux cored arc welding: - ANSWERcan be self shielded or gas
shielded.
A wire designated by CSA standard W48 as an E491T-9MJ-H8: - ANSWERresults in
a weld deposit with a maximum of 8 ml of diffusible hydrogen per 100 g of weld
metal.
What are the four modes of transfer used in gas metal arc welding? - ANSWERShort
circuit, globular, spray, and pulsed
What are examples of an F3 fast-freeze SMAW electrode? - ANSWEREXX10,
EXX11
The GMAW process uses __________ to shield the molten weld metal from the
atmosphere: - ANSWERan external shielding gas
There are two types of fluxes used for submerged arc welding. These are: -
ANSWERFused and bonded
Each electrode for SMAW must be imprinted with its classification. - ANSWERTrue
, The GMAW process generally uses: - ANSWERa constant voltage power source
with a constant speed wire feeder.
The electrode used in flux cored arc welding is a: - ANSWERtubular wire containing
flux.
Examples of physical properties that influence the GMAW arc are: -
ANSWERionizing potential, thermal conductivity, and specific gravity.
The main advantage(s) of using the GTAW process is (are): - ANSWERa high
quality weld deposit and the ability to weld virtually all weldable metals.
Which of the following would NOT result in an increase in deposition rate with the
SAW process? - ANSWERThe use of DCEP
Advantages of using robotic GMAW include - ANSWERhigh productivity,
comparatively easy to feed the wire, and works for sheet metal and thicker materials.
The advantage of pulsed GMAW transfer is: - ANSWERreduced heat input.
The power source used for SMAW is: - ANSWERconstant current.
Which of the following does the welder manipulate when using the SMAW
processes? - ANSWERAmperage setting, speed of travel, arc length, electrode
angle.
The SAW fluxes that significantly influence the composition of the weld metal
through slag/metal reactions are called: - ANSWERActive Fluxes
Welding using the GTAW process with direct current electrode negative (DCEN)
results in: - ANSWER30% arc heat at the electrode and 70% arc heat at the work.
The deposition rate for GMAW compared to SMAW is: - ANSWERhigher.
When using the submerged arc process with direct current, which polarity gives
better control over bead shape and deeper penetration? - ANSWERDirect current
electrode Positive (DCEP)
The gas metal arc welding process uses: - ANSWERBoth inert gasses and active
gas mixtures.
What is considered a limitation when using the SAW process? - ANSWERNot
applicable for vertical and overhead welding
Which of the following processes uses a non-consumable electrode? -
ANSWERGTAW
In welding, the arc is intensely hot with temperatures exceeding: - ANSWER30,000
°C (54,000 °F).
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