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CSWIP 3.2 Test 10:
Q. 1/30: 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 1/30
Test Progress : 3.33%
Q. 2/30: An undesirable property of aluminium oxide residue is that it:
Creates problems when welding in position (vertical, horizontal, overhead).
Requires more heat to melt it when compared with aluminium.
Increases weld pool fluidity.
Decreases weld pool fluidity.
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Q 2/30
Test Progress : 6.67%
Q. 3/30: A welder qualified in the PG position would normally be qualified for welding:
All diameters of pipe.
Welding positions PA, PC, PG, and PF.
In position PG only.
All pipe wall thickness.
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Q 3/30
Test Progress : 10.00%
Q. 4/30: A fabrication calls for the toes to be blended in by grinding.The most likely reason for this is to…
aMake the weld suitable for liquid (dye) penetrant inspection
Improve the fatigue life
reduce residual stresses
improvethe general appearance of the welds
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Q 4/30
Test Progress : 13.33%
Q. 5/30: A carbon equivalent of 0.48%:
Is high for carbon steel and may require a preheat temperature over 100oC.
Is insignificant for carbon steel and preheat will not be required.
Is calculated from the heat-input formula.
Is not a consideration for determining preheating temperatures.
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Q 5/30
Test Progress : 16.67%
Q. 6/30: Which of the following statements is true?
The core wire of an MMA electrode always contains alloying elements.
Basic electrodes are preferred when welding is carried out in situations where porosity free welds are specified.
Rutile electrodes always contain a large proportion of iron powder.
Cellulose electrodes may deposit in excess of 90ml of hydrogen per 100g of weld metal.
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Q 6/30
Test Progress : 20.00%
Q. 7/30: Preheat:
Must always be carried out on steels.
Need not be carried out if post weld heat is to follow.
Is always carried out using gas flames.
None of the above.
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Q 7/30
Test Progress : 23.33%
Q. 8/30: Which element has the greatest effect on general corrosion resistance?
Manganese.
Chromium.
Carbon.
Nickel.
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Q 8/30
Test Progress : 26.67%
Q. 9/30: Which of the following is the correct arc energy if the amps are 350, volts 32 and travel speed 310 mm/minute.
2.16 kJ/mm.
0.036 kJ/mm.
2.61 kJ/mm.
0.36 kJ/mm.
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Q 9/30
Test Progress : 30.00%
Q. 10/30: Which of the following mechanical test(s) can give a quantitative measurement of ductility?
Tensile test.
Bend test
Nick break test.
Both a and b.
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Q 10/30
Test Progress : 33.33%
Q. 11/30: Which of the following are applicable to fatigue cracking?
A rough randomly torn fracture surface, an initiation point and beach marks.
A smooth fracture surface, an initiation point and beach marks.
Beach marks, step like appearance and a secondary mode of failure.
All of the above.
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Q 11/30
Test Progress : 36.67%
Q. 12/30: What is a lap in steel?
A fold occurring in the steel during forming or rolling.
A sub-surface lamination, which may affect the strength of the steel.
A type of crack occurring in the parent material.
A non-metallic inclusion.
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Q 12/30
Test Progress : 40.00%
Q. 13/30: How can you tell the difference between an EN/ISO weld symbol and an AWS weld symbol?
"The EN/ISO weld symbol will always have the arrow side weld at the top of the reference line."
The EN/ISO symbol has the welds elementary symbol placed on the indication line lying above or below the solid reference line to indicate a weld on the other side.
The EN/ISO symbol has a fillet weld leg length identified by the letter ‘a’.
The EN/ISO symbol has a fillet weld throat thickness identified by the letter ‘z’.
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Q 13/30
Test Progress : 43.33%
Q. 14/30: What would the number 141 placed at the end of the reference line indicate on a welding symbol in accordance with BS EN ISO 2553?
NDT requirements.
SAW welding process.
MMA welding process.
TIG welding process.
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Q 14/30
Test Progress : 46.67%
Q. 15/30: What would the number 136 placed at the end of the reference line indicate on a welding symbol in accordance with BS EN ISO 2553?
MMA welding process.
MIG welding process.
FCAW welding process.
MAG welding process.
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Q 15/30
Test Progress : 50.00%
Q. 16/30: What is meant by the term normative document?
General term used to cover standards, specifications etc.
A legal document, the requirements of which must be carried out.
A document approved by a recognised body through consensus.
A written description of all essential parameters for a given process.
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Q 16/30
Test Progress : 53.33%
Q. 17/30: In the AWS standard for welding symbols which of the following is true.
The elementary welding symbol is always place below the reference line to indicate a site weld.
The elementary welding symbol is always placed above the reference line to indicate a weld made on the arrow side.
The elementary welding symbol can be placed above or below the reference line to indicate a weld made on the other side.
The elementary welding symbol is always placed below the reference line to indicate a weld made on the arrow side.
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Q 17/30
Test Progress : 56.67%
Q. 18/30: Impact test:
Is a destructive test used to measure weld zone hardness.
Is a mechanical test used to determine a welds resistance to creep.
Is a dynamic test, which is used to give a measure of notch toughness.
All of the above.
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Q 18/30
Test Progress : 60.00%
Q. 19/30: If arc strikes are found on carbon steel (carbon equivalent of 0.5%), what undesirable grain structure may be present?
Perlite.
Martensite.
Ferrite.
All of the above are undesirable grain structures in constructional steels.
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Q 19/30
Test Progress : 63.33%
Q. 20/30: Which of the following units is used to express the energy absorbed by a charpy specimen?
Joules.
Newton’s.
Mega Pascal’s.
Both a and c.
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Q 20/30
Test Progress : 66.67%
Q. 21/30: What does the 70 represent on an E7010 AWS A5.1 classified electrode?
70 N/mm2 minimum UTS.
70N/mm2 minimum impact strength.
70,000 p.s.i. minimum UTS.
70,000 p.s.i. minimum yield strength.
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Q 21/30
Test Progress : 70.00%
Q. 22/30: A multi-run MMA butt weld made on low alloy steel consists of 5 passes using a 6mm diameter electrode, a 12 pass weld made on the same joint using a 4mm diameter electrode on the same material will:
Have a lower heat input and a higher degree of grain refinement.
Have a lower heat input and a coarse grain structure.
Have a lower amount of distortion and a higher degree of grain refinement.
Have a higher amount of distortion and a lower degree of grain refinement.
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Q 22/30
Test Progress : 73.33%
Q. 23/30: Which of the following would you expect of a martensitic grain structure?
An increase in toughness and a reduction in hardness.
An increase in hardness and a reduction in ductility.
An increase in ductility and a reduction in toughness.
An increase in malleability and an increase in hardness.
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Q 23/30
Test Progress : 76.67%
Q. 24/30: Which of the following would reduce the chances of arc blow?
A change from AC current to DC current.
A change from DC current to AC current.
A change from DC electrode +ve to DC electrode –ve.
A change from DC electrode –ve to DC electrode +ve.
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Q 24/30
Test Progress : 80.00%
Q. 25/30: Which of the following mechanical properties of a weld made on C-Mn steel is most affected if the heat input per unit length is excessively high?
Tensile strength.
Ductility.
Toughness.
Elongation.
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Q 25/30
Test Progress : 83.33%
Q. 26/30: Which of the following tests would you not expect to be carried out on a welder qualification test?
Radiography.
Tensile test.
Macro.
Bend test.
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Q 26/30
Test Progress : 86.67%
Q. 27/30: Which two aspects of radiographic images are normally measured?
Density and contrast.
Sensitivity and definition.
Density and sensitivity.
Contrast and definition.
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Q 27/30
Test Progress : 90.00%
Q. 28/30: What are the units used when measuring light intensities for viewing test specimens using MPI or DPI testing?
Tesla.
Lux.
Hertz.
Gray.
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Q 28/30
Test Progress : 93.33%
Q. 29/30: If it was a requirement to radiograph a 10mm thick steel weldment, which of the following isotopes would be the most suited with regards to application and quality?
Se 75.
Tm 170.
Yb 169
Co 60.
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Q 29/30
Test Progress : 96.67%
Q. 30/30: When carrying out inspection on a Double V butt weld (35° bevel angle), which the following NDT methods would be the most suited for the detection of lack of sidewall fusion in the root region?
Ultrasonic Inspection.
Radiographic Inspection.
Magnetic Particle Inspection.
Dye Penetrant Inspection.
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Q 30/30
Test Progress : 100.00%
Q. 31/30: Which NDT method would you associate with prods?
Radiographic Inspection.
Magnetic Particle Inspection.
Ultrasonic Inspection.
Dye Penetrant Inspection..
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Q 31/30
Test Progress : 103.33%
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