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CWB 2 ALL MODULES EXAM
LATEST ACTUAL EXAM
QUESTIONS AND 100% VERIFIED
ANSWERS|EXCELLENT SCORES
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 - CORRECT-ANSWER-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
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B) ACEP
C) DCEN
D) ACEP - CORRECT-ANSWER-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 - CORRECT-ANSWER-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 - CORRECT-ANSWER-C) Nearly constant
current regardless of voltage fluctuations
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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 - CORRECT-ANSWER-D) Constant voltage power source with a
constant speed wire feed system
Which of the following hardness testers will be used because it has a
small indentation size that can easily locate regions in a weld?
A) Brinell
B) Knoop
C) Vickers
D) Rockshaw - CORRECT-ANSWER-C) Vickers
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Brittle materials in a toughness test will:
A) Absorb significant energy
B) Absorb minimal energy
C) Deform with considerable plasticity
D) Exhibit a flat and dull surface - CORRECT-ANSWER-B) Absorb minimal
energy
A proof test on a structure to measure the final quality of manufacture
is a test that:
A) Involves overloading beyond design of the structure
B) Shows absolute proof of quality
C) Involves the rapid increase in pressure
D) Does not require governing codes and specifications - CORRECT-
ANSWER-A) Involves overloading beyond design of the structure
Fatigue cracks are one of several issues that threaten the life of welded
structures. They begin as:
CWB 2 ALL MODULES EXAM
LATEST ACTUAL EXAM
QUESTIONS AND 100% VERIFIED
ANSWERS|EXCELLENT SCORES
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 - CORRECT-ANSWER-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
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B) ACEP
C) DCEN
D) ACEP - CORRECT-ANSWER-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 - CORRECT-ANSWER-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 - CORRECT-ANSWER-C) Nearly constant
current regardless of voltage fluctuations
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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 - CORRECT-ANSWER-D) Constant voltage power source with a
constant speed wire feed system
Which of the following hardness testers will be used because it has a
small indentation size that can easily locate regions in a weld?
A) Brinell
B) Knoop
C) Vickers
D) Rockshaw - CORRECT-ANSWER-C) Vickers
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Brittle materials in a toughness test will:
A) Absorb significant energy
B) Absorb minimal energy
C) Deform with considerable plasticity
D) Exhibit a flat and dull surface - CORRECT-ANSWER-B) Absorb minimal
energy
A proof test on a structure to measure the final quality of manufacture
is a test that:
A) Involves overloading beyond design of the structure
B) Shows absolute proof of quality
C) Involves the rapid increase in pressure
D) Does not require governing codes and specifications - CORRECT-
ANSWER-A) Involves overloading beyond design of the structure
Fatigue cracks are one of several issues that threaten the life of welded
structures. They begin as:
