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CSWIP 3.1 Test 7:
Q. 1/30: Preheating a low alloy steel prior to welding to minimise the risk of:
Porosity
Excessive distortion
HAZ cracking
Lack of fusion
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Q 1/30
Test Progress : 3.33%
Q. 2/30: For deep penetration fillet welds symbol used for throat thickness is
Z
A
S
None of these
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Q 2/30
Test Progress : 6.67%
Q. 3/30: Preheating a steel plate with a carbon equivalent (CEV) of 0.48 may be required to:
Drive moisture from the plate
Prevent excessive hardening in the HAZ
Prevent the formation of carbides
Improve the mechanical properties of the weld metal
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Q 3/30
Test Progress : 10.00%
Q. 4/30: Which of the following coatings is associated with stove welding?
Rutile
Basic
Cellulosic
Oxidising
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Q 4/30
Test Progress : 13.33%
Q. 5/30: What is meant by the term weld junction?
The area containing the HAZ and weld metal.
The weld metal and parent metal.
The boundary between the fusion zone and the HAZ.
The part of the weld which has undergone metallurgical changes due to the heat from welding.
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Q 5/30
Test Progress : 16.67%
Q. 6/30: 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 6/30
Test Progress : 20.00%
Q. 7/30: 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 7/30
Test Progress : 23.33%
Q. 8/30: When TIG welding austenitic stainless steel pipe, argon gas backing is called for. This is to:
Prevent oxidation
Prevent underbead cracking
Prevent porosity
Control the penetration bead shape
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Q 8/30
Test Progress : 26.67%
Q. 9/30: In a transverse tensile test brittleness would be indicated if:
There is a reduction in cross-section at the position of fracture
The fracture surface is flat and featureless but has a rough surface
Fracture occurred in the weld metal
The fracture face shows beach marks
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Q 9/30
Test Progress : 30.00%
Q. 10/30: When two different material types are welded together the joint is referred to as:
A composite joint
A transition joint
An autogenous weld
Heterogeneous joint
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Q 10/30
Test Progress : 33.33%
Q. 11/30: The predominant structure of an hyper-eutectoid steel that has been quenched at above its upper critical point will be:
Austenite
Martensite
Troostite
Sorbite
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Q 11/30
Test Progress : 36.67%
Q. 12/30: 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 12/30
Test Progress : 40.00%
Q. 13/30: In MMA, welding penetration is principally controlled by:
Arc voltage
Welding speed
Ferro-silicon in the electrode coating
Current
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Q 13/30
Test Progress : 43.33%
Q. 14/30: Which type of submerged arc welding flux is susceptible to moisture pick-up?
Neutral
Agglomerated
Fused
Are all about the same
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Q 14/30
Test Progress : 46.67%
Q. 15/30: Exceeding the maximum interpass temperature specified for a C-Mn steel weld joint may give:
Excessive porosity
Burn through
Lower toughness
Higher strength
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Q 15/30
Test Progress : 50.00%
Q. 16/30: An Izod impact machine is used to give indication of the _______ of a material.
Hardness
Tensile Strength
Ductility
Yield Strength
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Q 16/30
Test Progress : 53.33%
Q. 17/30: Which of the following is a suitable shielding gas for FCAW of stainless steels?
100% Argon
70% Argon + 30% He
Argon + 5% Hydrogen
Argon + 20% CO2
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Q 17/30
Test Progress : 56.67%
Q. 18/30: Under most circumstances, which of the following do you consider to be duties of a welding inspector?
The supervision of welders.
Procedure writing.
Qualifying welders.
All of the above.
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Q 18/30
Test Progress : 60.00%
Q. 19/30: Heavy porosity on the surface of some MMA welds made on a construction site is most likely to be caused by:
Use of the wrong class of electrodes
Use of excessive current
Moisture pick-up in the electrode covering
A bad batch of electrodes
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Q 19/30
Test Progress : 63.33%
Q. 20/30: Under most circumstances, which of the following do you consider to be duties of a welding inspector?
The supervision of welders.
Procedure writing.
Qualifying welders.
All of the above.
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Q 20/30
Test Progress : 66.67%
Q. 21/30: Under most circumstances, which of the following do you consider to be duties of a welding inspector?
The supervision of welders.
Procedure writing.
Qualifying welders.
All of the above.
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Q 21/30
Test Progress : 70.00%
Q. 22/30: When visually inspecting the face of a finished weld which of the following flaws would be considered to be the most serious?
Excess weld metal height
Start porosity
Spatter
Arc strikes
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Q 22/30
Test Progress : 73.33%
Q. 23/30: The main cause of undercut is
Excessive amps.
Excessive OCV
Excessive travel speed
Current too low
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Q 23/30
Test Progress : 76.67%
Q. 24/30: Deflection of the arc by magnetic forces that can make welding difficult to control is commonly known as:
Arc initiation
Arc misalignment
Arc blow
Arc constriction
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Q 24/30
Test Progress : 80.00%
Q. 25/30: When MAG welding in dip transfer (a short-circuiting mode) spatter can be reduced by:
Using inductance
Using 100%CO2
Using Ar +30% He
Increasing the stick-out length
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Q 25/30
Test Progress : 83.33%
Q. 26/30: A fabricating procedure calls for fillet welds to be 'blended in' by grinding. This influences:
HAZ. cracking
Fatigue life
Residual stress
Yield strength
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Q 26/30
Test Progress : 86.67%
Q. 27/30: The principal purpose of a welder qualification test is to:
Test the skill of the welder
Assess the weldability of the materials
Decide which NDT methods to use
Give the welder practice before doing production welding
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Q 27/30
Test Progress : 90.00%
Q. 28/30: The chemical composition of the weld metal deposited by a C-Mn steel MMA electrode is usually controlled by:
Core wire composition
Additions in the flux coating
Iron powder in the flux coating
Dilution from the base material
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Q 28/30
Test Progress : 93.33%
Q. 29/30: When welding thin plate distortion can be minimised by:
Welding from both sides
Using U preparations rather than V types
Using strongbacks
Using back-step welding
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Q 29/30
Test Progress : 96.67%
Q. 30/30: Which element has the greatest effect on the HAZ hardness of C-Mn steel?
Molybdenum
Chromium
Titanium
Carbon
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Q 30/30
Test Progress : 100.00%
Q. 31/30: Under most circumstances, which of the following do you consider to be duties of a welding inspector?
The supervision of welders.
Procedure writing.
Qualifying welders.
All of the above.
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Q 31/30
Test Progress : 103.33%
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