CWB 2 Visual Weld Inspector Exam
Latest Update Questions with Correct
Answers Graded Perfect Score A+
"The impact toughness of the weld deposit required for the - Answer -
"Why would 650 C be a better temperature to specify for a PWHT of a welded martensitic stainless steel
than - Answer -
(B...
CWB 2 Visual Weld Inspector Exam
Latest Update Questions with Correct
Answers Graded Perfect Score A+
"The impact toughness of the weld deposit required for the - Answer -
"Why would 650 C be a better temperature to specify for a PWHT of a welded martensitic stainless steel
than - Answer -
(Blank) are normally required to be welded together to avoid a gap that may initiate cracks -
Answer -Backing bars
(Blank) are used to measure small dimensions where high precision is required - Answer -
Micrometers
(Blank) is a solidification cavity that could appear as a lamination in the middle of an end of section of a
rolled plate - Answer -Pipe
(f= V/λ)" - Answer -
1) F = Size of source - Answer -
100% CO2 is not generally used for GMAW of stainless steels - Answer -TRUE
2) Basic types - Answer -
2) Carefully clean off grease and dirt before welding - Answer -
2) Compression - Answer -
2) d= object to source distance - Answer -
2) Dark circular or pear shaped marks - Developer splashes before immersing whole film in developer -
Answer -
2) Developer is halted by immersion in stop bath - Answer -
2) electrodes must be stored in dry, warm areas - Answer -
2) EXXX-16 " - Answer -
2) Intended service conditions - Answer -
2) Radiographic contrast generally less than X-rays - Answer -
2) Reducing the amount of oxygen and other impurities in the weld - Answer -
,2) Rockwell - Answer -
2) Root bend - Answer -
2) Special safety precautions - Answer -
2) Steel - Answer -
2) Suitability of a welding procedure - Answer -
2) The ability to operate at lower temperatures for a given current density - Answer -
2) The wire diameter - Answer -
3) Cannot be used on all materials e.g. aluminum - Answer -
3) Controlling the bead shape and smoothness " - Answer -
3) Dark branched lines, dark sports - Marks due to static electrical discharge " - Answer -
3) Film is immersed in fixer solution " - Answer -
3) Greater arc stability and arc starting" - Answer -
3) Metal cored types " - Answer -
3) Shear" - Answer -
3) Side bend" - Answer -
3) slag is to be fully removed between passes and from the finished weld" - Answer -
3) Some defects not reliably detected " - Answer -
3) Structure produced in the weld deposit" - Answer -
3) Suitability of welding consumable" - Answer -
3) t=Object to film distance" - Answer -
3) The mode of metal transfer" - Answer -
3) Tungsten" - Answer -
3) Use stainless steel cleaning brushes " - Answer -
3) Vickers" - Answer -
4) Radiation emitted continuously " - Answer -
550 C" - Answer -To avoid temper embrittlement
,A "pipe" is a solidification cavity in steel. Where would you most likely find such a defect when inspecting
a rolled plate - Answer -in the middle of an end section
A 14% Cr martensitic steel hardened to 1000 C and air cooled proceduces - Answer -Martensite
A 6mm deep discontinuity in a beveled plate edge for welding has been found. What action should be
taken according to CSA W59 - Answer -The discontinuity has to be removed and rewelded
A certain instrument (Such as micrometer) can measure a dimension to 2 decimal places, this indicates -
Answer -Precision
A consumable electrode is: - Answer -AN electrode which melts and provides metal to fill the joint
A couplant is only needed if the surface is rough - Answer -FALSE
A dark narrow area 2-3 mm wide appears on a radiograph all the way along the edge of the area
representing the weld. The joint was 60 Degrees double Vee Groove. What does the dark area most
likely represent - Answer -Undercut
A dark, narrow area about 1 - 2 mm wide appears on a radiograph of a double vee groove weld along the
edge of the area representing the weld. What does this dark area most likely represent? - Answer -
Incomplete side wall fusion
A disadvantage of using the X-ray tube is that it - Answer -Requires an electrical source
A filter added to restrict the display and to make the inspector aware of an indication in a predetermined
area on the screen is referred to as - Answer -A Gate
A groove weld is determined to have undercut along the toes of the weld in excess of what is allowable
by applicable standard. The undercut may be correct by - Answer -Grinding the undercut regions
to provide a U groove profile and depositing weld pass to fill in the U groove
A guided root bend test on a weld would best reveal - Answer -Lack of penetration of fusion
A high quality measuring instrument should - Answer -Be calibrated regularly as specified in a
formal calibration program
A large ASTM grain size number indicates - Answer -A fine grain structure
A leak test method that utilizes a pressure differential on surfaces in the - Answer -Vacuum test
A material that may require a special technique for UT examination is - Answer -Austenitic
stainless steel
A method of controlling weld metal fissuring is to - Answer -Ensure there is a small amount of
residual delta ferrite in the weld metal
A physical property of metal that governs its change in shape in heating is - Answer -The
coefficient of thermal expansion
, A proof test on a pressure vessel is usually performed using a medium - Answer -Water
A proof test on a structure to measure the final quality of manufacture is a test that - Answer -
involves overloading beyond design of the structure
A raised portion on the surface caused by a gas bubble - Answer -A Blister
A reference point occupying the middle position of the symmetrical shape is known as - Answer -
neutral axis
A shape change produced by stress is known as - Answer -Strain
A specified curvature of a flange in the plane of the web is known as - Answer -Sweep
A splash of metal in the ingot mold rolled into the surface - Answer -Scab
A stainless steel electrode with the designation E316-25 woud be in - Answer -Basic flux electrode
usable for flat grooves and horizontal fillets only
A stainless steel is said to be passivated when - Answer -Stable adherent oxide layer protects the
surface
A steel bar of square cross section, 50 mm x 50 mm is subjected to a load of 213 kn. What is the tensile
stress in the bar - Answer -85.2 Mpa = [(50 x 50) / 213 kn]
A straight chromium steel < 0.1% carbon and 18% chromium when heated to 1000 C will -
Answer -Remain as ferrite
A typical application for thermite welding is - Answer -joining of rails
A typical frequency used for ultrasonic testing welds is - Answer -2.25 MHz
A typical weld flaw associated with GTAW process is - Answer -porosity
A welding arc consists of a - Answer -high current and low voltage
A well defined line indication with tightly held, heavy powder buildup is likely to represent -
Answer -A crack open to surface
According to AWS D1.6, occasional notches or gouges on a cut surface may be removed by grinding or
machining if they do not exceed the lesser of 1/8 in (3 mm) or 20% of the material thickness -
Answer -True
According to CSA W59, a damaged container of low alloy SMAW electrodes must be - Answer -re-
baked at temperatures between 230 C and 260 C
According to CSA W59, the SAW process can be used without preheat if adequate energy input is
ensured. This is applicable when making - Answer -Fillet welds in one pass
According to CSA W59, what is maximum deviation from flatness of a web 1500 mm deep -
Answer -10 mm
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