ESTUDYR
CWB 2 VISUAL WELD INSPECTOR UPDATED EXAM WITH MOST
TESTED QUESTIONS AND ANSWERS | GRADED A+ | ASSURED
SUCCESS WITH DETAILED RATIONALES
1. What is a consumable electrode?
A. An electrode that does not melt during welding
B. An electrode used only for TIG welding
C. An electrode that melts and provides metal to fill the joint
D. An electrode that serves as an insulator
Answer: C. An electrode that melts and provides metal to fill the joint
Rationale: Consumable electrodes are designed to melt during welding and act as filler material for the
weld joint.
2. What is the weld heat-affected zone?
A. The area where the weld metal is deposited
B. The portion of the base metal adjacent to the weld metal whose properties have been changed due
to the heat of welding
C. The area cooled by a water-cooled torch
D. The joint where flux has been applied
Answer: B. The portion of the base metal adjacent to the weld metal whose properties have been
changed due to the heat of welding
Rationale: The heat-affected zone (HAZ) is the part of the base metal affected by the heat but not
melted.
3. When an arc is formed between two electrodes, electricity flows from:
A. Positive anode to negative cathode
B. Ground to workpiece
C. Workpiece to electrode
D. Negative cathode to positive anode
Answer: D. Negative cathode to positive anode
Rationale: In an electric arc, electrons flow from the negative cathode to the positive anode, creating
heat for welding.
,ESTUDYR
4. The magnetic pinch force in welding helps to detach molten metal drops. The magnetic force:
A. Increases as the current decreases
B. Decreases with increasing current
C. Increases as the square of the current, causing smaller and smaller droplets to be detached
D. Remains constant
Answer: C. Increases as the square of the current, causing smaller and smaller droplets to be detached
Rationale: The magnetic pinch effect is proportional to the square of the welding current, aiding in
metal transfer.
5. What is the electric current transformation required for welding?
A. Low voltage, low amperage to high voltage, high amperage
B. High voltage, low amperage to low voltage, high amperage
C. High voltage, high amperage to low voltage, low amperage
D. Alternating current to direct current
Answer: B. High voltage, low amperage to low voltage, high amperage
Rationale: Welding requires low voltage and high amperage to generate the heat necessary for welding.
6. The major advantage of the electron beam welding process is:
A. Minimal equipment cost
B. Simplicity of operation
C. Full penetration welds on thick material in one pass
D. High portability
Answer: C. Full penetration welds on thick material in one pass
Rationale: Electron beam welding can produce deep, narrow welds in a single pass, even on thick
materials.
7. What is the welding direction for the Electroslag welding process?
A. Horizontal
B. Overhead
C. Vertical up
D. Flat
Answer: C. Vertical up
Rationale: Electroslag welding progresses vertically upward, making it suitable for thick plates.
,ESTUDYR
8. Explosion welding is a process in which:
A. Metal is fused by melting the joint with high heat
B. Coalescence is produced through high-speed impact by controlled detonation
C. The weld pool is formed by an electric arc
D. Welding is performed using a laser
Answer: B. Coalescence is produced through high-speed impact by controlled detonation
Rationale: Explosion welding is a solid-state process where materials are joined by explosive force
without melting.
9. A typical application of thermite welding is:
A. Automotive parts
B. Pipelines
C. Joining of rails
D. Structural steel fabrication
Answer: C. Joining of rails
Rationale: Thermite welding is commonly used for railways because it produces high-quality welds for
joining rails.
10. Welding without filler metal using the GTAW process is called:
A. MIG welding
B. Autogenous welding
C. Submerged arc welding
D. Spot welding
Answer: B. Autogenous welding
Rationale: Autogenous welding involves fusing two metal pieces without adding filler material,
commonly used in TIG welding.
11. A common weld flaw associated with GTAW is:
A. Undercut
B. Porosity
C. Excessive spatter
D. Lack of penetration
, ESTUDYR
Answer: B. Porosity
Rationale: Porosity can occur in GTAW due to contamination or improper shielding gas flow.
12. SMAW power sources typically have a volt-ampere curve that is:
A. Flat
B. Drooping
C. Constant
D. Fluctuating
Answer: B. Drooping
Rationale: A drooping volt-ampere curve provides the stable arc necessary for Shielded Metal Arc
Welding.
13. Once a box of E49XX low hydrogen electrodes is opened, they may remain at ambient
temperature for:
A. 8 hours
B. 24 hours
C. 4 hours
D. 12 hours
Answer: C. 4 hours
Rationale: Low hydrogen electrodes must be stored properly to prevent moisture absorption, which can
cause weld defects.
14. The spray mode of metal transfer is achieved with:
A. Low amperage and CO₂ shielding gas
B. High amperage, high voltage, and argon-rich shielding gas
C. Medium amperage and helium shielding gas
D. Low voltage and mixed gas
Answer: B. High amperage, high voltage, and argon-rich shielding gas
Rationale: Spray transfer requires high energy and argon shielding for smooth droplet transfer.
15. Digital wire feeders:
CWB 2 VISUAL WELD INSPECTOR UPDATED EXAM WITH MOST
TESTED QUESTIONS AND ANSWERS | GRADED A+ | ASSURED
SUCCESS WITH DETAILED RATIONALES
1. What is a consumable electrode?
A. An electrode that does not melt during welding
B. An electrode used only for TIG welding
C. An electrode that melts and provides metal to fill the joint
D. An electrode that serves as an insulator
Answer: C. An electrode that melts and provides metal to fill the joint
Rationale: Consumable electrodes are designed to melt during welding and act as filler material for the
weld joint.
2. What is the weld heat-affected zone?
A. The area where the weld metal is deposited
B. The portion of the base metal adjacent to the weld metal whose properties have been changed due
to the heat of welding
C. The area cooled by a water-cooled torch
D. The joint where flux has been applied
Answer: B. The portion of the base metal adjacent to the weld metal whose properties have been
changed due to the heat of welding
Rationale: The heat-affected zone (HAZ) is the part of the base metal affected by the heat but not
melted.
3. When an arc is formed between two electrodes, electricity flows from:
A. Positive anode to negative cathode
B. Ground to workpiece
C. Workpiece to electrode
D. Negative cathode to positive anode
Answer: D. Negative cathode to positive anode
Rationale: In an electric arc, electrons flow from the negative cathode to the positive anode, creating
heat for welding.
,ESTUDYR
4. The magnetic pinch force in welding helps to detach molten metal drops. The magnetic force:
A. Increases as the current decreases
B. Decreases with increasing current
C. Increases as the square of the current, causing smaller and smaller droplets to be detached
D. Remains constant
Answer: C. Increases as the square of the current, causing smaller and smaller droplets to be detached
Rationale: The magnetic pinch effect is proportional to the square of the welding current, aiding in
metal transfer.
5. What is the electric current transformation required for welding?
A. Low voltage, low amperage to high voltage, high amperage
B. High voltage, low amperage to low voltage, high amperage
C. High voltage, high amperage to low voltage, low amperage
D. Alternating current to direct current
Answer: B. High voltage, low amperage to low voltage, high amperage
Rationale: Welding requires low voltage and high amperage to generate the heat necessary for welding.
6. The major advantage of the electron beam welding process is:
A. Minimal equipment cost
B. Simplicity of operation
C. Full penetration welds on thick material in one pass
D. High portability
Answer: C. Full penetration welds on thick material in one pass
Rationale: Electron beam welding can produce deep, narrow welds in a single pass, even on thick
materials.
7. What is the welding direction for the Electroslag welding process?
A. Horizontal
B. Overhead
C. Vertical up
D. Flat
Answer: C. Vertical up
Rationale: Electroslag welding progresses vertically upward, making it suitable for thick plates.
,ESTUDYR
8. Explosion welding is a process in which:
A. Metal is fused by melting the joint with high heat
B. Coalescence is produced through high-speed impact by controlled detonation
C. The weld pool is formed by an electric arc
D. Welding is performed using a laser
Answer: B. Coalescence is produced through high-speed impact by controlled detonation
Rationale: Explosion welding is a solid-state process where materials are joined by explosive force
without melting.
9. A typical application of thermite welding is:
A. Automotive parts
B. Pipelines
C. Joining of rails
D. Structural steel fabrication
Answer: C. Joining of rails
Rationale: Thermite welding is commonly used for railways because it produces high-quality welds for
joining rails.
10. Welding without filler metal using the GTAW process is called:
A. MIG welding
B. Autogenous welding
C. Submerged arc welding
D. Spot welding
Answer: B. Autogenous welding
Rationale: Autogenous welding involves fusing two metal pieces without adding filler material,
commonly used in TIG welding.
11. A common weld flaw associated with GTAW is:
A. Undercut
B. Porosity
C. Excessive spatter
D. Lack of penetration
, ESTUDYR
Answer: B. Porosity
Rationale: Porosity can occur in GTAW due to contamination or improper shielding gas flow.
12. SMAW power sources typically have a volt-ampere curve that is:
A. Flat
B. Drooping
C. Constant
D. Fluctuating
Answer: B. Drooping
Rationale: A drooping volt-ampere curve provides the stable arc necessary for Shielded Metal Arc
Welding.
13. Once a box of E49XX low hydrogen electrodes is opened, they may remain at ambient
temperature for:
A. 8 hours
B. 24 hours
C. 4 hours
D. 12 hours
Answer: C. 4 hours
Rationale: Low hydrogen electrodes must be stored properly to prevent moisture absorption, which can
cause weld defects.
14. The spray mode of metal transfer is achieved with:
A. Low amperage and CO₂ shielding gas
B. High amperage, high voltage, and argon-rich shielding gas
C. Medium amperage and helium shielding gas
D. Low voltage and mixed gas
Answer: B. High amperage, high voltage, and argon-rich shielding gas
Rationale: Spray transfer requires high energy and argon shielding for smooth droplet transfer.
15. Digital wire feeders:
