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CSWIP 3.2 Test 9:
Q. 1/30: Pipe bores of some materials must be purged with argon before and during TIG welding 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 1/30
Test Progress : 3.33%
Q. 2/30: According to AWS A2.4 a weld symbol for the other side is placed:
Above the dashed line.
Below the dashed line.
Above the solid line.
Below the solid line.
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Q 2/30
Test Progress : 6.67%
Q. 3/30: Which of the following elements is added to steel to give resistance to creep at elevated service temperatures?
Nickel.
Manganese.
Molybdenum.
Aluminium.
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Q 3/30
Test Progress : 10.00%
Q. 4/30: Compound welds:
Always contain full penetration butt welds.
Joints which have combinations of welds made by different welding processes.
Combinations between two different weld types.
All of the above.
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Q 4/30
Test Progress : 13.33%
Q. 5/30: Welding inspectors:
Normally supervise welders.
Are normally requested to write welding procedures.
Are sometimes requested to qualify welders.
All of the above.
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Q 5/30
Test Progress : 16.67%
Q. 6/30: In an arc welding process, which of the following is the correct term used for the amount of weld metal deposited per minute?
Filling rate.
Deposition rate.
Weld deposition.
Weld duty cycle.
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Q 6/30
Test Progress : 20.00%
Q. 7/30: The throat thickness of 19mm fillet weld is?
27.5mm.
24mm.
13.3mm.
12.5mm.
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Q 7/30
Test Progress : 23.33%
Q. 8/30: Pre-heat for steel will increase if:
The material thickness reduces.
Faster welding speeds.
The use of a larger welding electrode.
A reduction in carbon content in the parent material.
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Q 8/30
Test Progress : 26.67%
Q. 9/30: What is the maximum allowable linear misalignment for 8mm material if the code states the following, ‘Linear misalignment is permissible if the maximum dimension does not exceed 10% of t up to a maximum of 2mm’?
0.8mm.
2mm.
8mm.
None of the above, insufficient information provided.
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Q 9/30
Test Progress : 30.00%
Q. 10/30: BS EN ISO 17637:
The minimum light illumination required for visual inspection is 350 Lux.
The minimum light illumination required for visual inspection is 500 Lux.
The minimum light illumination required for visual inspection is 600 Lux at not less than 30°.
Doesn’t specify any viewing conditions for visual inspection.
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Q 10/30
Test Progress : 33.33%
Q. 11/30: Which of the following electrodes and current types may be used for the TIG welding of nickel and its alloys?
Cerium electrode, DC –ve.
Zirconium electrode, AC.
Thorium electrode, DC +ve.
All of the above may be used.
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Q 11/30
Test Progress : 36.67%
Q. 12/30: When considering the MIG/MAG welding process which of the following metal transfer modes would be the most suited to the welding of thick plates over 25mm in PA.
Dip transfer.
Pulse transfer.
Spray transfer.
Globular transfer.
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Q 12/30
Test Progress : 40.00%
Q. 13/30: When considering hydrogen, which of the following welding processes would produce the lowest levels in the completed weld? (under controlled conditions)
MMA.
SAW.
TIG.
FCAW.
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Q 13/30
Test Progress : 43.33%
Q. 14/30: In steel the element with the greatest effect on hardness is:
Chromium.
Manganese.
Carbon.
Nickel.
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Q 14/30
Test Progress : 46.67%
Q. 15/30: Brittle fractures:
The susceptibility in steels will increase with the formation of a fine grain structure.
The susceptibility in steels will increase with a reduction in the in-service temperature to sub-zero conditions.
The susceptibility in steels will increase with a slow cooling rate.
All of the above.
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Q 15/30
Test Progress : 50.00%
Q. 16/30: Which of the following steels is considered non-magnetic?
18%Cr, 8%Ni.
2.25Cr 1Mo.
9%Cr,1Mo.
9%Ni.
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Q 16/30
Test Progress : 53.33%
Q. 17/30: 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 17/30
Test Progress : 56.67%
Q. 18/30: A STRA test is used to measure the:
Tensile strength of the welded joint.
Level of residual stress in butt joints.
Fracture toughness of the HAZ.
Through-thickness ductility of a steel plate (the Z direction).
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Q 18/30
Test Progress : 60.00%
Q. 19/30: A macrosection is particularly good for showing:
a The weld metal HAZ microstructure.
Overlap.
Joint hardness.
Spatter.
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Q 19/30
Test Progress : 63.33%
Q. 20/30: A suitable gas/gas mixture for GMAW of aluminium is:
00%CO2.
100% Argon.
80% argon + 20% CO2.
98% argon + 2% O2.
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Q 20/30
Test Progress : 66.67%
Q. 21/30: A crack running along the centreline of a weld bead could be caused by:
Use of damp flux.
Lack of preheat.
Arc voltage too high.
Weld bead too deep and very narrow.
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Q 21/30
Test Progress : 70.00%
Q. 22/30: The maximum hardness in the HAZ of a steel will increase if:
Heat input is increased.
CEV is increased.
Joint thickness is decreased.
Basic electrodes are used.
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Q 22/30
Test Progress : 73.33%
Q. 23/30: Initiation of a TIG arc using a high frequency spark may not be allowed because it:
Often causes tungsten inclusions.
Can damage electronic equipment.
Is an electrical safety hazard.
Often causes stop/start porosity.
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Q 23/30
Test Progress : 76.67%
Q. 24/30: In friction welding, the metal at the interface when the joining occurs is described as being in the:
aLiquid state.
Intercritical state.
Plastic state.
Elastic state.
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Q 24/30
Test Progress : 80.00%
Q. 25/30: What four criteria are necessary to produce hydrogen induced cold cracking?
Hydrogen, moisture, martensitic grain structure and heat.
Hydrogen, poor weld profiles, temperatures above 200oC and a slow cooling rate.
Hydrogen, a grain structure susceptible to cracking, stress and a temperature below 300oC.
Hydrogen, existing weld defects, stress and a grain structure susceptible to cracking.
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Q 25/30
Test Progress : 83.33%
Q. 26/30: Austenitic stainless steels are more susceptible to distortion when compared to ferritic steels this is because:
High coefficient of thermal expansion, low thermal conductivity.
High coefficient of thermal expansion, high thermal conductivity.
Low coefficient of thermal expansion, high thermal conductivity.
Low coefficient thermal expansion, low thermal conductivity.
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Q 26/30
Test Progress : 86.67%
Q. 27/30: Transverse tensile test:
Is used to measure the ultimate tensile strength of the joint.
Is used to measure the elongation of a material.
Is used to measure the yield strength of a material.
All of the above.
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Q 27/30
Test Progress : 90.00%
Q. 28/30: In the welding of austenitic stainless steels, the electrode and plate materials are often specified to be low carbon content. The reason for this:
To prevent the formation of cracks in the HAZ.
To prevent the formation of chromium carbides.
To prevent cracking in the weld.
Minimise distortion.
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Q 28/30
Test Progress : 93.33%
Q. 29/30: Essential variable:
in a WPS may change the properties of the weld.
In a WPS may influence the visual acceptance.
In a WPS may require re-approval of a weld procedure.
All of the above.
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Q 29/30
Test Progress : 96.67%
Q. 30/30: "In an all weld metal tensile test, the original test specimens gauge length is 50mm After testing the gauge length increased to 72mm, what is the elongation percentage?"
44%.
144%.
69.4%.
2.27%.
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Q 30/30
Test Progress : 100.00%
Q. 31/30: Which of the following will vary the most when varying the arc length using the MMA welding process?
Voltage.
Amperage.
Polarity.
Both a and b.
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Q 31/30
Test Progress : 103.33%
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