Canadian Welding Bureau (CWB) Level 2 Visual Welding
Inspector All Modules EXAM LATEST QUESTIONS AND 100%
Verified ANSWERS
A Rectifier is a device that converts:
A) DC current to AC current
B) AC Current to a high value DC current
C) DC current to a high value DC current
D) AC current to DC current - answer>>D) AC current to DC current
It would be correct to say:
A) Expansion and contraction are proportional to the dimensions of the heated area
B) When a bar is heated under restraint, its stress relieves itself as it cools
C) Slow cooling of a heated area will provide the greatest amount of shrinkage
D) When metal is heated it expands, but it does not shrink back to its original size when it cools -
answer>>A) Expansion and contraction are proportional to the dimensions of the heated area
When a structural member has been bent sharply, it can be straightened by heating:
A) A vee shaped section of the web underneath the bent area of the flange
B) The inside corner of an angle, channel, i-beam, or T bar
C) A vee shaped area at the point of the greatest bend, with the top of the vee at the point of greatest
bend
D) All along the edge of the section
E) All along the edge opposite of the one which is bent - answer>>C) A vee shaped area at the point of
the greatest bend, with the top of the vee at the point of greatest bend
,Of the many mechanical means of controlling distortion, the following will have the least residual
stress:
A) Rigid clamping
B) Subassembly of the sections
C) Heavy strongbacks, welded on both sides of the joint
D) Similar weldments clamped back to back
E) Pre-set the plates to allow recovery of angular distortion - answer>>E) Pre-set the plates to allow
recovery of angular distortion
Decreasing the number of weld beads in a specific weld will:
A) Result in annealing the weld area
B) Give a finer grain structure
C) Reduce the transverse shrinkage
D) Increase the transverse shrinkage
E) Possibly crack the root pass - answer>>C) Reduce the transverse shrinkage
The neutral axis is the:
A) Line on which there will be neither tension nor compression when the piece is flexed or bent
B) Centreline of a weld bead halfway between the root pass and the face pass
C) Outside centreline of the web of a channel
D) Inside corner line of an unequal leg steel angle
E) Dimensional halfway point of a welded assembly - answer>>A) Line on which there will be neither
tension nor compression when the piece is flexed or bent
When expansion and contraction are prevented, heating and cooling may cause:
A) No residual stresses
,B) Failure due to lamellar tearing
C) No permanent deformation or failure
D) Failure when the metal is highly ductile
E) Failure when metal is not sufficiently ductile - answer>>E) Failure when metal is not sufficiently
ductile
When heated, unrestrained metal will expand:
A) Transversely (across the weld)
B) Volumetrically (in all directions)
C) Until it upsets
D) Longitudinally (lengthwise)
E) Mostly across the width of the weld - answer>>B) Volumetrically (in all directions)
It would be INCORRECT to say that peening:
A) Should not be used on the last pass
B) Puts surface of the weld in compression
C) Should not be used on root passes
D) Can be used to form the surface contour of the weld to the inspector`s satisfaction
E) Should be stopped before the weld surface starts to flake - answer>>D) Can be used to form the
surface contour of the weld to the inspector`s satisfaction
To avoid longitudinal bending of a plate when it is being cut to width, you would:
A) Cool the outer edge with an air blast
B) Cut both edges at the same time
C) Dog the plate down away from the cut
, D) Pre-bend the plate away from the cut
E) Slow down the cutting speed - answer>>B) Cut both edges at the same time
High-heat-input welds will typically have:
A) Large beads and large heat affected zones
B) Large beads and narrow heat affected zones
C) Small beads and large heat affected zones
D) Small beads and small heat affected zones - answer>>A) Large beads and large heat affected zones
Which of the following will have the greatest effect of the metallurgical changes that occur within the
HAZ?
A) The peak temperature reached
B) The welding amperage
C) The welding voltage
D) The contact tip-to-work distance - answer>>A) The peak temperature reached
Which of the following will reduce the available hydrogen when welding operations are planned?
A) Preheat
B) A coat of paint on the base material to be welded
C) Moisture on the electrode to be used
D) Grease on the plate surface to be welded - answer>>A) Preheat
The controlled thermal severity test (CTS) uses which type of weld?
A) Corner weld
B) Lap weld
Inspector All Modules EXAM LATEST QUESTIONS AND 100%
Verified ANSWERS
A Rectifier is a device that converts:
A) DC current to AC current
B) AC Current to a high value DC current
C) DC current to a high value DC current
D) AC current to DC current - answer>>D) AC current to DC current
It would be correct to say:
A) Expansion and contraction are proportional to the dimensions of the heated area
B) When a bar is heated under restraint, its stress relieves itself as it cools
C) Slow cooling of a heated area will provide the greatest amount of shrinkage
D) When metal is heated it expands, but it does not shrink back to its original size when it cools -
answer>>A) Expansion and contraction are proportional to the dimensions of the heated area
When a structural member has been bent sharply, it can be straightened by heating:
A) A vee shaped section of the web underneath the bent area of the flange
B) The inside corner of an angle, channel, i-beam, or T bar
C) A vee shaped area at the point of the greatest bend, with the top of the vee at the point of greatest
bend
D) All along the edge of the section
E) All along the edge opposite of the one which is bent - answer>>C) A vee shaped area at the point of
the greatest bend, with the top of the vee at the point of greatest bend
,Of the many mechanical means of controlling distortion, the following will have the least residual
stress:
A) Rigid clamping
B) Subassembly of the sections
C) Heavy strongbacks, welded on both sides of the joint
D) Similar weldments clamped back to back
E) Pre-set the plates to allow recovery of angular distortion - answer>>E) Pre-set the plates to allow
recovery of angular distortion
Decreasing the number of weld beads in a specific weld will:
A) Result in annealing the weld area
B) Give a finer grain structure
C) Reduce the transverse shrinkage
D) Increase the transverse shrinkage
E) Possibly crack the root pass - answer>>C) Reduce the transverse shrinkage
The neutral axis is the:
A) Line on which there will be neither tension nor compression when the piece is flexed or bent
B) Centreline of a weld bead halfway between the root pass and the face pass
C) Outside centreline of the web of a channel
D) Inside corner line of an unequal leg steel angle
E) Dimensional halfway point of a welded assembly - answer>>A) Line on which there will be neither
tension nor compression when the piece is flexed or bent
When expansion and contraction are prevented, heating and cooling may cause:
A) No residual stresses
,B) Failure due to lamellar tearing
C) No permanent deformation or failure
D) Failure when the metal is highly ductile
E) Failure when metal is not sufficiently ductile - answer>>E) Failure when metal is not sufficiently
ductile
When heated, unrestrained metal will expand:
A) Transversely (across the weld)
B) Volumetrically (in all directions)
C) Until it upsets
D) Longitudinally (lengthwise)
E) Mostly across the width of the weld - answer>>B) Volumetrically (in all directions)
It would be INCORRECT to say that peening:
A) Should not be used on the last pass
B) Puts surface of the weld in compression
C) Should not be used on root passes
D) Can be used to form the surface contour of the weld to the inspector`s satisfaction
E) Should be stopped before the weld surface starts to flake - answer>>D) Can be used to form the
surface contour of the weld to the inspector`s satisfaction
To avoid longitudinal bending of a plate when it is being cut to width, you would:
A) Cool the outer edge with an air blast
B) Cut both edges at the same time
C) Dog the plate down away from the cut
, D) Pre-bend the plate away from the cut
E) Slow down the cutting speed - answer>>B) Cut both edges at the same time
High-heat-input welds will typically have:
A) Large beads and large heat affected zones
B) Large beads and narrow heat affected zones
C) Small beads and large heat affected zones
D) Small beads and small heat affected zones - answer>>A) Large beads and large heat affected zones
Which of the following will have the greatest effect of the metallurgical changes that occur within the
HAZ?
A) The peak temperature reached
B) The welding amperage
C) The welding voltage
D) The contact tip-to-work distance - answer>>A) The peak temperature reached
Which of the following will reduce the available hydrogen when welding operations are planned?
A) Preheat
B) A coat of paint on the base material to be welded
C) Moisture on the electrode to be used
D) Grease on the plate surface to be welded - answer>>A) Preheat
The controlled thermal severity test (CTS) uses which type of weld?
A) Corner weld
B) Lap weld
