CWB LEVEL 2 EXAMINERS 2026 SET QUESTIONS
AND ANSWERS SURE A+
✔✔Select the correct definitions for "accuracy" and "precision".
- How close repeated measurements are to the "true" value.
- How close repeated values are to each other. - ✔✔"Accuracy" - How close repeated
measurements are to the "true" value.
"Precision" - How close repeated values are to each other.
✔✔A steel tape measure should be checked at a temperature of _____° C. - ✔✔20° C
Note: When using it in colder temperatures, allow 15-20 minutes for it to adjust!
✔✔According to CSA, what is the formula used to measure a convex fillet weld?
(A) 0.07 x face width + 1.6 mm
(B) 0.7 x face width + 1 mm
(C) 0.7 x leg length + 1mm
(D) 0.07 x leg length + 1.6mm - ✔✔(A) 0.07 x face width + 1.6 mm
✔✔How do you measure a concave fillet weld? - ✔✔Use the throat side of a fillet
gauge, and ensure both sides touch the workpiece
,✔✔How do you measure the size of a flare-groove weld?
(A) throat thickness (sectioning of trial welds required)
(B) face width (welding conditions factored in and unchanged)
(C) either of the above - ✔✔(C) either of the above
✔✔When it comes to a skewed fillet weld, angles of less than _____ are considered
partial penetration groove welds.
(A) 30°
(B) 60°
(C) 90°
(D) 110° - ✔✔(B) 60°
✔✔What is the correct definition of "effective throat thickness" when referring to a
groove weld?
(A) the shortest distance from face to root of the weld, plus any reinforcement
(B) the shortest distance from the face to the root of the weld, minus any reinforcement -
✔✔(B) the shortest distance from the face to the root of the weld, minus any
reinforcement
✔✔Is the FCAW wire E492T-10 self-shielded or gas-shielded? - ✔✔Self-shielded
✔✔True or False:
You can use an E308 grade electrode when welding 304 type stainless steel. - ✔✔True!
Note: For welding austenitic stainless, it's actually recommended to use an electrode
that's similar to the base metal, but with a higher nickel-chromium content. The
additional alloying content compensates for losses during welding
✔✔A Plasma is:
A) A gas made up of positive ions and free electrons
B) A liquid used to reduce adherence of spatter
C) The main component in an inverter power source
D) Always present in an electrical circuit - ✔✔A) A gas made up of positive ions and
free electrons
✔✔To increase melting rate (burn-off rate) in the shielded metal arc welding (SMAW)
process, which polarity should be used?
A) DCEP
B) ACEP
, C) DCEN
D) ACEP - ✔✔C) DCEN
✔✔Which type of welding power source is used for the SMAW process?
A) Constant Current
B) Constant Voltage
C) Pulsed Current
D) Pulsed Voltage - ✔✔A) Constant Current
✔✔The purpose of a drooping welding power source is to produce:
A) Constant voltage regardless of the current demand
B) Constant arc length regardless of current
C) Nearly constant current regardless of voltage fluctuations
B) Low open circuit voltage - ✔✔C) Nearly constant current regardless of voltage
fluctuations
✔✔A self-regulating welding arc is produced by a:
A) Constant current power source with a constant speed wire feed system
B) Constant voltage power source with a voltage sensing wire feed system
C) Constant current power source
D) Constant voltage power source with a constant speed wire feed system - ✔✔D)
Constant voltage power source with a constant speed wire feed system
✔✔Short circuit current is determined by the:
A) Voltage in the circuit
B) Static characteristic of the power source
C) Position of welding
D) Skill of the welder - ✔✔B) Static characteristic of the power source
✔✔A Transformer is a device that:
A) Transforms AC to DC
B) Works only to change a DC voltage
C) Changes the value of an AC voltage but does not change the frequency
D) Is made from a semiconductor - ✔✔C) Changes the value of an AC voltage but does
not change the frequency
✔✔A Rectifier is a device that converts:
A) DC current to AC current
B) AC Current to a high value DC current
AND ANSWERS SURE A+
✔✔Select the correct definitions for "accuracy" and "precision".
- How close repeated measurements are to the "true" value.
- How close repeated values are to each other. - ✔✔"Accuracy" - How close repeated
measurements are to the "true" value.
"Precision" - How close repeated values are to each other.
✔✔A steel tape measure should be checked at a temperature of _____° C. - ✔✔20° C
Note: When using it in colder temperatures, allow 15-20 minutes for it to adjust!
✔✔According to CSA, what is the formula used to measure a convex fillet weld?
(A) 0.07 x face width + 1.6 mm
(B) 0.7 x face width + 1 mm
(C) 0.7 x leg length + 1mm
(D) 0.07 x leg length + 1.6mm - ✔✔(A) 0.07 x face width + 1.6 mm
✔✔How do you measure a concave fillet weld? - ✔✔Use the throat side of a fillet
gauge, and ensure both sides touch the workpiece
,✔✔How do you measure the size of a flare-groove weld?
(A) throat thickness (sectioning of trial welds required)
(B) face width (welding conditions factored in and unchanged)
(C) either of the above - ✔✔(C) either of the above
✔✔When it comes to a skewed fillet weld, angles of less than _____ are considered
partial penetration groove welds.
(A) 30°
(B) 60°
(C) 90°
(D) 110° - ✔✔(B) 60°
✔✔What is the correct definition of "effective throat thickness" when referring to a
groove weld?
(A) the shortest distance from face to root of the weld, plus any reinforcement
(B) the shortest distance from the face to the root of the weld, minus any reinforcement -
✔✔(B) the shortest distance from the face to the root of the weld, minus any
reinforcement
✔✔Is the FCAW wire E492T-10 self-shielded or gas-shielded? - ✔✔Self-shielded
✔✔True or False:
You can use an E308 grade electrode when welding 304 type stainless steel. - ✔✔True!
Note: For welding austenitic stainless, it's actually recommended to use an electrode
that's similar to the base metal, but with a higher nickel-chromium content. The
additional alloying content compensates for losses during welding
✔✔A Plasma is:
A) A gas made up of positive ions and free electrons
B) A liquid used to reduce adherence of spatter
C) The main component in an inverter power source
D) Always present in an electrical circuit - ✔✔A) A gas made up of positive ions and
free electrons
✔✔To increase melting rate (burn-off rate) in the shielded metal arc welding (SMAW)
process, which polarity should be used?
A) DCEP
B) ACEP
, C) DCEN
D) ACEP - ✔✔C) DCEN
✔✔Which type of welding power source is used for the SMAW process?
A) Constant Current
B) Constant Voltage
C) Pulsed Current
D) Pulsed Voltage - ✔✔A) Constant Current
✔✔The purpose of a drooping welding power source is to produce:
A) Constant voltage regardless of the current demand
B) Constant arc length regardless of current
C) Nearly constant current regardless of voltage fluctuations
B) Low open circuit voltage - ✔✔C) Nearly constant current regardless of voltage
fluctuations
✔✔A self-regulating welding arc is produced by a:
A) Constant current power source with a constant speed wire feed system
B) Constant voltage power source with a voltage sensing wire feed system
C) Constant current power source
D) Constant voltage power source with a constant speed wire feed system - ✔✔D)
Constant voltage power source with a constant speed wire feed system
✔✔Short circuit current is determined by the:
A) Voltage in the circuit
B) Static characteristic of the power source
C) Position of welding
D) Skill of the welder - ✔✔B) Static characteristic of the power source
✔✔A Transformer is a device that:
A) Transforms AC to DC
B) Works only to change a DC voltage
C) Changes the value of an AC voltage but does not change the frequency
D) Is made from a semiconductor - ✔✔C) Changes the value of an AC voltage but does
not change the frequency
✔✔A Rectifier is a device that converts:
A) DC current to AC current
B) AC Current to a high value DC current
