CWI part A TEST 150 QUESTIONS AND CORRECT ANSWERS
2025 LATEST//GRADED A+
Which of the following tests can be used to judge the soundness of a weld? - ANSWER-Nick break,
side bend, face bend, fillet break
The type of testing used to evaluate the type of microstructure present in a metal is called -
ANSWER-Metallorgraphic
The 5 main classes of stainless steels are ... - ANSWER-Ferrictic , martensitic, austenitic,
precipitation hardening, and duplex grades
A discontinuity is ..... - ANSWER-A rejectable if it exceeds code limits
The mating surface of a member that is in contact with or in close proximity to another member to
which it is to be joined is called? - ANSWER-Faying surface
The maximum inter pass temp for quenched and tempered steels is specified for what reason -
ANSWER-Avoid hydrogen cracking
Which section of asme code covers qualification of welders - ANSWER-Section IX
Which of the following brazing techniques requires the most skilled personnel - ANSWER-Manual
torch brazing
What is the heat input for a molten weld pool at 5ipm travel speed, 25 volts and 100 amperes? Refer
to page 10-8 for formula - ANSWER-30,000 J/in
The code that covers the welding of steel structures is: - ANSWER-AWS D1.1
,The term for that portion of a single bevel butt joint where the two pieces to be joined come
together come closest together is: - ANSWER-Joint root
Generally, as strength increases for carbon steels, the ductility: - ANSWER-Decreases
Which of the following should be checked after fit-up and tack welding? - ANSWER-Tack Welds
Which of the following is a capability of a CAWI? - ANSWER-Perform visual examinations under the
direct supervision of a CWI or SCWI
Metals can dissolve into each other when both are in the solid form. - ANSWER-True
For satisfaction results, a braze joint should have: - ANSWER-Clean joint surfaces
The width of a cut is referred to as the: - ANSWER-Kerf
Which of the following are true regarding electrical hazards ? - ANSWER-Present in electric arc
welders
Present in secondary leads
Minimized by proper equipment installation
More severe in the presence of water or moisture
Some of the toxic materials the welder may be exposed to are: - ANSWER-Cadmium
Chromium
Nickel
Lead
A tensile specimen having a cross sectional are of 0.25 square inch breaks at a load of 15,250 lbs.
what is its tensile strength? (Tensile strength = Load /Area - ANSWER-61,000psi
, Proper usage and handling of compressed gas cylinders include: - ANSWER-Not welding on
cylinders
Not including the cylinders in ground or electrical circuit
Securing them properly
Identifying the gas prior to use
The discontinuity that results from the entrapment of gas within the weld cross section is referred to
as: - ANSWER-Porosity
For SMAW, which of the following requires a higher preheat temperature? - ANSWER-High carbon
steels
High strength low alloy steels
Of the following processes, which is unlikely to have slag inclusions in a completed weld -
ANSWER-PAW
In a partial penetration single V groove weld, the term for the dimension measured from the joint
root to where the weld penetration stops is? - ANSWER-Root penetration
Which of the following tests will generally be used to determine the behavior of a metal at a specific
temperature? - ANSWER-Charpy impact test
Capillary action plays a role in which NDT method - ANSWER-PT
What is the pipe welding position where the pipe remains fixed with its axis horizontal, so the welder
must weld around the joint? - ANSWER-5G
Which of the following should be checked prior to fit up. - ANSWER-Bevel angle
Which of the following is not a method used to eliminate or reduce residual stresses - ANSWER-
External restraint
2025 LATEST//GRADED A+
Which of the following tests can be used to judge the soundness of a weld? - ANSWER-Nick break,
side bend, face bend, fillet break
The type of testing used to evaluate the type of microstructure present in a metal is called -
ANSWER-Metallorgraphic
The 5 main classes of stainless steels are ... - ANSWER-Ferrictic , martensitic, austenitic,
precipitation hardening, and duplex grades
A discontinuity is ..... - ANSWER-A rejectable if it exceeds code limits
The mating surface of a member that is in contact with or in close proximity to another member to
which it is to be joined is called? - ANSWER-Faying surface
The maximum inter pass temp for quenched and tempered steels is specified for what reason -
ANSWER-Avoid hydrogen cracking
Which section of asme code covers qualification of welders - ANSWER-Section IX
Which of the following brazing techniques requires the most skilled personnel - ANSWER-Manual
torch brazing
What is the heat input for a molten weld pool at 5ipm travel speed, 25 volts and 100 amperes? Refer
to page 10-8 for formula - ANSWER-30,000 J/in
The code that covers the welding of steel structures is: - ANSWER-AWS D1.1
,The term for that portion of a single bevel butt joint where the two pieces to be joined come
together come closest together is: - ANSWER-Joint root
Generally, as strength increases for carbon steels, the ductility: - ANSWER-Decreases
Which of the following should be checked after fit-up and tack welding? - ANSWER-Tack Welds
Which of the following is a capability of a CAWI? - ANSWER-Perform visual examinations under the
direct supervision of a CWI or SCWI
Metals can dissolve into each other when both are in the solid form. - ANSWER-True
For satisfaction results, a braze joint should have: - ANSWER-Clean joint surfaces
The width of a cut is referred to as the: - ANSWER-Kerf
Which of the following are true regarding electrical hazards ? - ANSWER-Present in electric arc
welders
Present in secondary leads
Minimized by proper equipment installation
More severe in the presence of water or moisture
Some of the toxic materials the welder may be exposed to are: - ANSWER-Cadmium
Chromium
Nickel
Lead
A tensile specimen having a cross sectional are of 0.25 square inch breaks at a load of 15,250 lbs.
what is its tensile strength? (Tensile strength = Load /Area - ANSWER-61,000psi
, Proper usage and handling of compressed gas cylinders include: - ANSWER-Not welding on
cylinders
Not including the cylinders in ground or electrical circuit
Securing them properly
Identifying the gas prior to use
The discontinuity that results from the entrapment of gas within the weld cross section is referred to
as: - ANSWER-Porosity
For SMAW, which of the following requires a higher preheat temperature? - ANSWER-High carbon
steels
High strength low alloy steels
Of the following processes, which is unlikely to have slag inclusions in a completed weld -
ANSWER-PAW
In a partial penetration single V groove weld, the term for the dimension measured from the joint
root to where the weld penetration stops is? - ANSWER-Root penetration
Which of the following tests will generally be used to determine the behavior of a metal at a specific
temperature? - ANSWER-Charpy impact test
Capillary action plays a role in which NDT method - ANSWER-PT
What is the pipe welding position where the pipe remains fixed with its axis horizontal, so the welder
must weld around the joint? - ANSWER-5G
Which of the following should be checked prior to fit up. - ANSWER-Bevel angle
Which of the following is not a method used to eliminate or reduce residual stresses - ANSWER-
External restraint
