CWB RED SEAL REVIEW TEST QUESTIONS &
ANSWERS
constant current - Answer -what type of power supply is required for GTAW?
decreases the current - Answer -in a constant voltage output system, increasing tip to
work distance increases the resistance in the power circuit. What is the effect on current
flow?
rebaked at 370 to 430 degrees C - Answer -Electrodes that are exposed to the
environment for more than 4 hours should be?
inert OR reactive gases - Answer -the GMAW process protects its welds through the
use of:
the 1st pass is done using a drag technique - Answer -When welding the first passes of
thick groove joints with weld backing:
gas shielded penetrate more deeply than self shielded electrodes - Answer -which
electrode penetrates more deeply? Gas shielded or self shielded
short-circuit transfer - Answer -which GMAW transfer is most prone to incomplete
fusion?
CO2 - Answer -Which shielding gas may require an in line heater at high flow rates?
6-12mm (1/4 - 1/2") - Answer -The required electrode extension for short-circuit transfer
is:
flat and horizontal - Answer -Which position is SAW normally performed in?
intended for single pass only - Answer -What do the letters GS mean in the following
type of electrode? ER70S-GS
Voltage-Sensing Wire Feeder - Answer -A power supply set to constant current mode
requires a:
120v- 240v single phase - Answer -Residential power in Canada is supplied at what
value?
high voltage - Answer -To initiate an arc requires:
EWP - Answer -Which of the following designates an "unalloyed" tungsten?
, DCEP (reverse polarity) - Answer -Which GMAW polarity produces deeper
penetration?
constant current - Answer -Which type of power is best suited for manual welding?
composite filler metal - Answer -What does the letter C stand for in the following type of
electrode? ER70C-X
pure tungsten using AC - Answer -Which tungsten would you expect to see balled after
striking an arc?
high current - Answer -Excessive spatter and undercutting of a weld bead can be
caused by:
increase arc voltage - Answer -To increase arc length when SAW welding:
fused - Answer -There are several types of SAW fluxes. Which type flux can be
reused?
consists of a rotating magnetic field inside the conductor windings. - Answer -A
generator, consists of rotating conductors in a stationary magnetic field and an
alternator:
voltage-sensing - Answer -Which wire feeder set-up is used with SAW in constant-
current mode?
flat groove welds, and flat and horizontal fillets - Answer -According to CSA W48-01, in
what welding position would an E492T-5 electrode be used?
5 l/m (11cfh) - Answer -What is a suitable shielding gas flow rate for GTAW on DCEN
using a #6 gas cup?
DCEN - Answer -Which type of current is used for GTAW of stainless steel?
step-down transformer - Answer -A transformer with more windings in the primary than
in the secondary is what kind of transformer?
lower hydrogen weld metal than rutile type - Answer -Basic FCAW electrodes can have
lower operator appeal due to the flux system. Why are they used?
E7048 (4948) - Answer -Which electrode is not suitable for overhead position welding?
pulsed spray transfer - Answer -The GMAW method that uses surges of current and
voltage for all position welding without spatter is:
ANSWERS
constant current - Answer -what type of power supply is required for GTAW?
decreases the current - Answer -in a constant voltage output system, increasing tip to
work distance increases the resistance in the power circuit. What is the effect on current
flow?
rebaked at 370 to 430 degrees C - Answer -Electrodes that are exposed to the
environment for more than 4 hours should be?
inert OR reactive gases - Answer -the GMAW process protects its welds through the
use of:
the 1st pass is done using a drag technique - Answer -When welding the first passes of
thick groove joints with weld backing:
gas shielded penetrate more deeply than self shielded electrodes - Answer -which
electrode penetrates more deeply? Gas shielded or self shielded
short-circuit transfer - Answer -which GMAW transfer is most prone to incomplete
fusion?
CO2 - Answer -Which shielding gas may require an in line heater at high flow rates?
6-12mm (1/4 - 1/2") - Answer -The required electrode extension for short-circuit transfer
is:
flat and horizontal - Answer -Which position is SAW normally performed in?
intended for single pass only - Answer -What do the letters GS mean in the following
type of electrode? ER70S-GS
Voltage-Sensing Wire Feeder - Answer -A power supply set to constant current mode
requires a:
120v- 240v single phase - Answer -Residential power in Canada is supplied at what
value?
high voltage - Answer -To initiate an arc requires:
EWP - Answer -Which of the following designates an "unalloyed" tungsten?
, DCEP (reverse polarity) - Answer -Which GMAW polarity produces deeper
penetration?
constant current - Answer -Which type of power is best suited for manual welding?
composite filler metal - Answer -What does the letter C stand for in the following type of
electrode? ER70C-X
pure tungsten using AC - Answer -Which tungsten would you expect to see balled after
striking an arc?
high current - Answer -Excessive spatter and undercutting of a weld bead can be
caused by:
increase arc voltage - Answer -To increase arc length when SAW welding:
fused - Answer -There are several types of SAW fluxes. Which type flux can be
reused?
consists of a rotating magnetic field inside the conductor windings. - Answer -A
generator, consists of rotating conductors in a stationary magnetic field and an
alternator:
voltage-sensing - Answer -Which wire feeder set-up is used with SAW in constant-
current mode?
flat groove welds, and flat and horizontal fillets - Answer -According to CSA W48-01, in
what welding position would an E492T-5 electrode be used?
5 l/m (11cfh) - Answer -What is a suitable shielding gas flow rate for GTAW on DCEN
using a #6 gas cup?
DCEN - Answer -Which type of current is used for GTAW of stainless steel?
step-down transformer - Answer -A transformer with more windings in the primary than
in the secondary is what kind of transformer?
lower hydrogen weld metal than rutile type - Answer -Basic FCAW electrodes can have
lower operator appeal due to the flux system. Why are they used?
E7048 (4948) - Answer -Which electrode is not suitable for overhead position welding?
pulsed spray transfer - Answer -The GMAW method that uses surges of current and
voltage for all position welding without spatter is:
