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CSWIP 3.1 Test 1:
Q. 1/30: Which of the following butt-weld preparations is usually the most susceptible to lack of sidewall fusion during the manual arc process?
A double-U butt
A single-V butt.
A double-V butt.
It is not normally a defect associated with the MMA welding process.
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Q 1/30
Test Progress : 3.33%
Q. 2/30: Weld Joint in which the parent materials have significant differences in mechanical properties and/or chemical composition
Homogeneous Joint
Dissimilar JOint
Heterogeneous Joint
None Of These
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Q 2/30
Test Progress : 6.67%
Q. 3/30: What is the term given for the area of a welded joint outside the weld metal that has undergone microstructural changes?
Heat affected zone.
The weld zone
Fusion zone.
All of the above terms may be used.
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Q 3/30
Test Progress : 10.00%
Q. 4/30: The majority of welder qualification tests are carried out using unbacked electrode because:
It is quicker and cheaper if back-gouging is not required.
If the welding process is not TIG. back purging is not required.
All welder qualification tests are done on a small diameter pipe.
It requires more skill and increases the welders' qualification range.
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Q 4/30
Test Progress : 13.33%
Q. 5/30: Which is the best destructive test for showing lack of sidewall fusion in a 25mm thickness butt weld?
Nick break
Side bend
Charpy impact
Face bend
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Q 5/30
Test Progress : 16.67%
Q. 6/30: Pipe bores of some materials must be purged with argon before and during TIG welding in order to
Prevent linear porosity
Prevent burn-through
Prevent oxidation of the root bead
Eliminate moisture pick-up in the root bead.
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Q 6/30
Test Progress : 20.00%
Q. 7/30: Carbon equivalent values (CEV) are used to determine how to avoid the risk of:
Hydrogen cracking
Lamellar tearing
Solidification cracking
Weld decay
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Q 7/30
Test Progress : 23.33%
Q. 8/30: When ‘hydrogen control’ is specified for a manual metal arc welding project the electrode would normally be:
Cellulosic
Iron oxide
Acid
Basic
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Q 8/30
Test Progress : 26.67%
Q. 9/30: Incomplete root fusion in a single V butt weld may be caused by:
Linear misalignment
Root gap being too large
Root faces being too small
Welding current too high
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Q 9/30
Test Progress : 30.00%
Q. 10/30: The term low hydrogen electrode is often used for certain electrodes. What type of covering will they have?
Cellulosic
Rutile
Acid
Basic
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Q 10/30
Test Progress : 33.33%
Q. 11/30: Applying preheat when welding carbon manganese steel is normally done to avoid:
Slag inclusions
Hydrogen cracking
Lack of sidewall fusion
Porosity
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Q 11/30
Test Progress : 36.67%
Q. 12/30: Transfer of material identification by hard stamping is sometimes not allowed for high integrity applications because it:
Is too slow
Can be a safety hazard
May damage the material
Causes problems with coating operations.
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Q 12/30
Test Progress : 40.00%
Q. 13/30: Weld Joint in which the parent material and weld metal have significant differences in mechanical properties and/or chemical composition
Homogeneous Joint
Dissimilar Joint
Heterogeneous Joint
All of These
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Q 13/30
Test Progress : 43.33%
Q. 14/30: For SAW, what is the effect of raising arc voltage but keeping all other parameters the same?
Weld bead width will increase
Depth of penetration will increase
Weld bead width will decrease
Depth of penetration will decrease
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Q 14/30
Test Progress : 46.67%
Q. 15/30: visible HAZ. What would this defect possibly signify?
HAZ cracking.
Toe cracking.
Lamellar tearing.
Lamination.
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Q 15/30
Test Progress : 50.00%
Q. 16/30: All things contain imperfections, but is only when they fall outside the level of acceptance they should be termed?
Discontinuity
Defect
Mechanical damage
Welding imperfections
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Q 16/30
Test Progress : 53.33%
Q. 17/30: A suitable gas/gas mixture, for GMAW for aluminium is:
100% CO2
100% Argon
80% Argon + 20% CO2
98% Argon + 2% 02
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Q 17/30
Test Progress : 56.67%
Q. 18/30: When 'hydrogen control' is specified for a manual metal arc welding project the electrode would normally be:
Cellulosic
Iron oxide
Acid
Basic
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Q 18/30
Test Progress : 60.00%
Q. 19/30: A Fusible insert for TIG welding helps:
Reduce porosity
Give controlled root penetration
Avoid the need for a back purge
By acting as a backing for the root run
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Q 19/30
Test Progress : 63.33%
Q. 20/30: A transverse tensile test from a Weld Procedure Approval Record (WPAR) test plate is used to measure:
Tensile strength of the weld
Tensile strength of the joint
Stress/strain characteristics of the weld
Stress/strain characteristics of the joint
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Q 20/30
Test Progress : 66.67%
Q. 21/30: You are to oversee the arc welding of some machine fittings and find that they are cadmium plated. Would you:
Permit it to proceed
Permit it to proceed with fume extraction
Stop the operation at once
Advise the welder to drink milk and proceed
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Q 21/30
Test Progress : 70.00%
Q. 22/30: The fusion boundary of a fillet weld is the:
Boundary between the weld metal and HAZ
Boundary between individual weld runs
Depth of root penetration
Boundary between HAZ and parent material.
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Q 22/30
Test Progress : 73.33%
Q. 23/30: What does the number 141 refer to when it is written next to the tail when using symbols
WPS number
Welding process
Filler material
Acceptance Standard
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Q 23/30
Test Progress : 76.67%
Q. 24/30: The risk of hydrogen cracking is greater when MMA welding:
C-Mn Steels
Austenitic Stainless Steels
Low Alloy Steels For Elevated Temperature Service
Low Carbon Steels For Cryogenical Service
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Q 24/30
Test Progress : 80.00%
Q. 25/30: A welder approval certificate should be withdrawn if:
He has not done any welding for 4 months
He has been absent from work for 7 months
The repair rate for his work exceeds 1%
His work has been examined by UT only
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Q 25/30
Test Progress : 83.33%
Q. 26/30: Bend test specimens have been taken from a 25mm thick carbon steel butt weld. Which would show lack of inter-run fusion:
Face Bend
Guided Bend
Root bend
Side bend
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Q 26/30
Test Progress : 86.67%
Q. 27/30: EN ISO 5817 (Level C) specifies that the limit for the diameter (D) of a single pore in a weld is: D<0.3s, but max. 4mm where s=material thickness. For which of the following situations is the pore acceptable?
S=20mm, measured pore diameter = 5mm
S=15mm, measured pore diameter = 4.5mm
S=10mm, measured pore diameter = 3mm
S=10mm, measured pore diameter = 3.5mm
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Q 27/30
Test Progress : 90.00%
Q. 28/30: One of the reasons for excluding hydrogen from the weld metal is to prevent the weld from:
Cracking
Cooling slowly
Cooling quickly
Expanding
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Q 28/30
Test Progress : 93.33%
Q. 29/30: Which of the following is applicable for none planar defects?
They are always repaired.
Their existence will result in the removal of the entire weld.
They are not usually as significant as planar defects.
They can only be detected using radiograph .
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Q 29/30
Test Progress : 96.67%
Q. 30/30: Actual Throat Thickness of a weld is
Design Throat Thickness + Excess weld metal
Design Throat Thickness - Excess weld metal
Design Throat Thickness
None of these
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Q 30/30
Test Progress : 100.00%
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