CWI Practice Part A UPDATED ACTUAL
Exam Questions and CORRECT Answers
Which of the following metals cannot be efficiently cut with OFC? - CORRECT
ANSWER - stainless steel and cast iron
Electrical conductivity of a part is the primary requirement for which NDE method? -
CORRECT ANSWER - ET
The melting point of carbon steel is approximately? - CORRECT ANSWER - 2780
Decibel is a term associated with which NDE method? - CORRECT ANSWER - UT
Which GMAW metal transfer mode results in the least amount of penetration? - CORRECT
ANSWER - short circuiting
Which of the following gas(es) is commonly used as a shielding gas for GTAW? - CORRECT
ANSWER - argon
NDE technicians are certified in accordance with? - CORRECT ANSWER - ASNT SNT-
TC-1A
When a metal is alloyed, how are the atoms of the alloy incorporated into the original metal
lattice structure? - CORRECT ANSWER - substitutionally or interstitially
A wire is used in which NDE method? - CORRECT ANSWER - RT
In general, which of the following is not commonly used as a semiautomatic process? -
CORRECT ANSWER - SMAW
,Items to be monitored by VT after welding include - CORRECT ANSWER - Extent of
welding, final weld appearance, dimensional accuracy, amount of distortion
Crater cracks are most often the result of - CORRECT ANSWER - improper technique
The tail of a welding symbol should not be used for - CORRECT ANSWER - denoting
groove angle
During tempering, as the temperature increases, which of the following are correct? - CORRECT
ANSWER - hardness decreases
In GMAW, the distance from the end of the contact tube to the arc is - CORRECT
ANSWER - electrode extension
Of the following, which is not a type of metal transfer in GMAW - CORRECT ANSWER -
Open Circuiting
Ultraviolet light may be used with which NDE methods? - CORRECT ANSWER - MT
and PT
The technique which does not aid in reducing residual stress is - CORRECT ANSWER -
external restraint
Which of the following may not be detected with VT? - CORRECT ANSWER - Lamellar
tear
Heat treatment conditions can be determined using which of the following? - CORRECT
ANSWER - ET
Which of the following elements are commonly used as alloying elements with tungsten to
produce GTAW electrodes - CORRECT ANSWER - thorium
, For single bevel-groove weld symbols, the line of the AWS weld symbol running perpendicular
to the reference line is always drawn on which side of the weld symbol? - CORRECT
ANSWER - on the left
The portion of the groove fave within the joint root is called - CORRECT ANSWER - root
face
NDE technicians are usually qualified in accordance with the requirements of - CORRECT
ANSWER - ASNT SNT-TC-1A
Which of the factors listed below has the least amount of effect on the residual stress and
distortion that results from welding? - CORRECT ANSWER - welding position
capillary action plays a role in which NDE method - CORRECT ANSWER - MT
Which of the following tests would be least effective for judging the soundness of a weld in the
as-welded condition? - CORRECT ANSWER - straight beam UT
Arc blow cannot be caused by - CORRECT ANSWER - Welding with AC
Which of the following shielding gases is used for GMAW spray transfer on steel? - CORRECT
ANSWER - oxygen-2%, argon-98%
Which discontinuity below will provide the sharpest MT indication? - CORRECT
ANSWER - surface crack
IN SMAW, an increase in arc length results in? - CORRECT ANSWER - Decreased
current; increased voltage
Exam Questions and CORRECT Answers
Which of the following metals cannot be efficiently cut with OFC? - CORRECT
ANSWER - stainless steel and cast iron
Electrical conductivity of a part is the primary requirement for which NDE method? -
CORRECT ANSWER - ET
The melting point of carbon steel is approximately? - CORRECT ANSWER - 2780
Decibel is a term associated with which NDE method? - CORRECT ANSWER - UT
Which GMAW metal transfer mode results in the least amount of penetration? - CORRECT
ANSWER - short circuiting
Which of the following gas(es) is commonly used as a shielding gas for GTAW? - CORRECT
ANSWER - argon
NDE technicians are certified in accordance with? - CORRECT ANSWER - ASNT SNT-
TC-1A
When a metal is alloyed, how are the atoms of the alloy incorporated into the original metal
lattice structure? - CORRECT ANSWER - substitutionally or interstitially
A wire is used in which NDE method? - CORRECT ANSWER - RT
In general, which of the following is not commonly used as a semiautomatic process? -
CORRECT ANSWER - SMAW
,Items to be monitored by VT after welding include - CORRECT ANSWER - Extent of
welding, final weld appearance, dimensional accuracy, amount of distortion
Crater cracks are most often the result of - CORRECT ANSWER - improper technique
The tail of a welding symbol should not be used for - CORRECT ANSWER - denoting
groove angle
During tempering, as the temperature increases, which of the following are correct? - CORRECT
ANSWER - hardness decreases
In GMAW, the distance from the end of the contact tube to the arc is - CORRECT
ANSWER - electrode extension
Of the following, which is not a type of metal transfer in GMAW - CORRECT ANSWER -
Open Circuiting
Ultraviolet light may be used with which NDE methods? - CORRECT ANSWER - MT
and PT
The technique which does not aid in reducing residual stress is - CORRECT ANSWER -
external restraint
Which of the following may not be detected with VT? - CORRECT ANSWER - Lamellar
tear
Heat treatment conditions can be determined using which of the following? - CORRECT
ANSWER - ET
Which of the following elements are commonly used as alloying elements with tungsten to
produce GTAW electrodes - CORRECT ANSWER - thorium
, For single bevel-groove weld symbols, the line of the AWS weld symbol running perpendicular
to the reference line is always drawn on which side of the weld symbol? - CORRECT
ANSWER - on the left
The portion of the groove fave within the joint root is called - CORRECT ANSWER - root
face
NDE technicians are usually qualified in accordance with the requirements of - CORRECT
ANSWER - ASNT SNT-TC-1A
Which of the factors listed below has the least amount of effect on the residual stress and
distortion that results from welding? - CORRECT ANSWER - welding position
capillary action plays a role in which NDE method - CORRECT ANSWER - MT
Which of the following tests would be least effective for judging the soundness of a weld in the
as-welded condition? - CORRECT ANSWER - straight beam UT
Arc blow cannot be caused by - CORRECT ANSWER - Welding with AC
Which of the following shielding gases is used for GMAW spray transfer on steel? - CORRECT
ANSWER - oxygen-2%, argon-98%
Which discontinuity below will provide the sharpest MT indication? - CORRECT
ANSWER - surface crack
IN SMAW, an increase in arc length results in? - CORRECT ANSWER - Decreased
current; increased voltage
