1|Page
CWB 2 VISUAL WELD INSPECTOR EXAM NEWEST ACTUAL
EXAM COMPLETE 1000 QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY
GRADED A+||NEWEST EXAM!!!
Welding codes normally require a waiting period between
welding and inspection because - ANSWER-hydrogen induced
cracks (HICC) may occur several hours after the weld has
solidified
What is the main reason for pre-heating - ANSWER-to reduce
the hydrogen content of the weld by diffusion
The tekkan test is suitable to study crack susceptibility in a -
ANSWER-Groove weld
Lamellar tearing is most likely to occur in which of the following
- ANSWER-thick T-groove welds
During welding, the proportion of heat energy that enters the
plate is referred to as its efficiency. What is the efficiency
dependent on - ANSWER-The welding process
,2|Page
When the alloy content of a structural steel us sufficiently high
that HAZ hardness cannot be controlled - ANSWER-The only
remaining factor which can be controlled is hydrogen content
In arc welding, the area of the base metal adjacent to the fusion
line which is not melted is called - ANSWER-The Heat Affected
Zone
Process that are not hydrogen controlled may require -
ANSWER-Higher preheat temperatures for thicker plates
What joints provide the most dilution - ANSWER-The square
groove weld with zero root opening
what electrode type is often required if stress relieving
operation are planned on the fabricated structure to maintain
the same yield strength and tensile strength - ANSWER-
Molybdenum-bearing electrodes
The type of microstructure and susceptibility to cracking of a
heat affected zone depends on - ANSWER-Hardenability of the
steel and the weld cooling rate
,3|Page
The level of preheat required is typically derived from the -
ANSWER-plate thickness and the carbon content of the steel
Submerged arc welding has a process efficiency of - ANSWER-
90% to 99%
Covered electrodes that use basic coatings - ANSWER-Reduce
electrodes that use basic coatings
The extent to which grain growth in HAZ occurs depends on -
ANSWER-The energy input
For given set of welding parameters, an increase in travel speed
will - ANSWER-Decrease the heat input
Why is it possible for some multipass welds to have higher
toughness than a single pass weld - ANSWER-The passes in the
multipass weld refine the underlying grain structure
The amount of dilution of weld metal by the parent metal -
ANSWER-is mostly dependent on the joint design and welding
process
, 4|Page
Restraint is usually higher in - ANSWER-Groove welds than in
fillet welds
The G-BOP test is suitable to study crack susceptibility relating
to - ANSWER-Hydrogen -cracking in the heat affected zone
What is the heat input efficiency of the SMAW process -
ANSWER-50 - 85
In some steels a very slow cooling rate may procedure a -
ANSWER-soft, coarse grain structure with low toughness
Sometimes an unwanted microstructure can be refined and
altered by reheating - ANSWER-Into normalizing range, where it
will re-crystalize and transform back into small austenite grains
Hydrogen entrapped in the solidified weld metal - ANSWER-Can
not escape into the atmosphere before it causes cracking
According to CSA W59, the SAW process can be used without
preheat if adequate energy input is ensured. This is applicable
when making - ANSWER-Fillet welds in one pass
CWB 2 VISUAL WELD INSPECTOR EXAM NEWEST ACTUAL
EXAM COMPLETE 1000 QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY
GRADED A+||NEWEST EXAM!!!
Welding codes normally require a waiting period between
welding and inspection because - ANSWER-hydrogen induced
cracks (HICC) may occur several hours after the weld has
solidified
What is the main reason for pre-heating - ANSWER-to reduce
the hydrogen content of the weld by diffusion
The tekkan test is suitable to study crack susceptibility in a -
ANSWER-Groove weld
Lamellar tearing is most likely to occur in which of the following
- ANSWER-thick T-groove welds
During welding, the proportion of heat energy that enters the
plate is referred to as its efficiency. What is the efficiency
dependent on - ANSWER-The welding process
,2|Page
When the alloy content of a structural steel us sufficiently high
that HAZ hardness cannot be controlled - ANSWER-The only
remaining factor which can be controlled is hydrogen content
In arc welding, the area of the base metal adjacent to the fusion
line which is not melted is called - ANSWER-The Heat Affected
Zone
Process that are not hydrogen controlled may require -
ANSWER-Higher preheat temperatures for thicker plates
What joints provide the most dilution - ANSWER-The square
groove weld with zero root opening
what electrode type is often required if stress relieving
operation are planned on the fabricated structure to maintain
the same yield strength and tensile strength - ANSWER-
Molybdenum-bearing electrodes
The type of microstructure and susceptibility to cracking of a
heat affected zone depends on - ANSWER-Hardenability of the
steel and the weld cooling rate
,3|Page
The level of preheat required is typically derived from the -
ANSWER-plate thickness and the carbon content of the steel
Submerged arc welding has a process efficiency of - ANSWER-
90% to 99%
Covered electrodes that use basic coatings - ANSWER-Reduce
electrodes that use basic coatings
The extent to which grain growth in HAZ occurs depends on -
ANSWER-The energy input
For given set of welding parameters, an increase in travel speed
will - ANSWER-Decrease the heat input
Why is it possible for some multipass welds to have higher
toughness than a single pass weld - ANSWER-The passes in the
multipass weld refine the underlying grain structure
The amount of dilution of weld metal by the parent metal -
ANSWER-is mostly dependent on the joint design and welding
process
, 4|Page
Restraint is usually higher in - ANSWER-Groove welds than in
fillet welds
The G-BOP test is suitable to study crack susceptibility relating
to - ANSWER-Hydrogen -cracking in the heat affected zone
What is the heat input efficiency of the SMAW process -
ANSWER-50 - 85
In some steels a very slow cooling rate may procedure a -
ANSWER-soft, coarse grain structure with low toughness
Sometimes an unwanted microstructure can be refined and
altered by reheating - ANSWER-Into normalizing range, where it
will re-crystalize and transform back into small austenite grains
Hydrogen entrapped in the solidified weld metal - ANSWER-Can
not escape into the atmosphere before it causes cracking
According to CSA W59, the SAW process can be used without
preheat if adequate energy input is ensured. This is applicable
when making - ANSWER-Fillet welds in one pass
