CWB 1 Exam with verified detailed solutions ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
1. Which is not a recommended method for surface cleaning of a part for liquid penetrant
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
examination?
a) Cleaning with organic solvents.
||\\//|| ||\\//|| ||\\//|| ||\\//||
b) Blasting with shot or dull sand.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Cleaning with de-greasers.
||\\//|| ||\\//|| ||\\//||
d) Use of de-scaling solutions.
||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Ultrasonic cleaning methods. - correct answer✔✔b) Blasting with shot or dull sand.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
2. Which of the following weld defects is most likely to be missed by radiography in a weld:
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) Undercutting.
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b) Porosity.
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c) Slag inclusions.
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d) Cracking.
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e) Burn through . - correct answer✔✔d) Cracking.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
3. In the choices given below, metallographic tests would be the least informative with
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
regard to the: ||\\//|| ||\\//||
a) Presence of the non-metallic inclusions.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
b) Grain structure in the weld and fusion zone.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Ability of the material to withstand repeated fluctuating loads.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Extent and structure of the heat affected zone.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Number of weld passes. - correct answer✔✔c) Ability of the material to withstand
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
repeated fluctuating loads. ||\\//|| ||\\//||
,4. In producing a drawing for a scale of 1:50, what would be the distance represented by a
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
distance on ||\\//||
the drawing of 6 em? ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) 12 cm. ||\\//|| ||\\//||
b) 30 cm. ||\\//|| ||\\//||
c) 50 cm. ||\\//|| ||\\//||
d) 240 cm. ||\\//|| ||\\//||
e) 300 cm. - correct answer✔✔e) 300 cm.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
5. The mechanical test used to determine the ability of a material to resist failure by brittle
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
fracture
requires the use of: ||\\//|| ||\\//|| ||\\//||
a) A tensile test specimen.
||\\//|| ||\\//|| ||\\//|| ||\\//||
b) A bend test specimen.
||\\//|| ||\\//|| ||\\//|| ||\\//||
c) A compression test specimen.
||\\//|| ||\\//|| ||\\//|| ||\\//||
d) An impact test specimen.
||\\//|| ||\\//|| ||\\//|| ||\\//||
e) A spectrographic test. - correct answer✔✔d) An impact test specimen.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
6. The cooling rate of aT-joint is:
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) Less than that in a butt joint.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
b) Greater than that in a butt joint.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Greater than that in a butt joint only where the carbon equivalent is high .
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Greater at the mid-section than at the start.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Greater at the mid-section than at the finish. - correct answer✔✔b) Greater than that in
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a butt joint.
||\\//|| ||\\//||
7. What are slag and non-metallic inclusions usually caused by?
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
,a) Moisture in the weld joint.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
b) High welding current.
||\\//|| ||\\//|| ||\\//||
c) Loss of shielding gas.
||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Inadequate interpass cleaning. - correct answer✔✔d) Inadequate interpass cleaning.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
8. Where deviations from the drawings are warranted the inspector should do which of the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
following?
a) Authorize approval of the changes.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
b) Obtain official approval for the changes.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Reject the work without any further consideration.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Stop the work until drawing revisions have been completed. - correct answer✔✔b)
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Obtain official approval for the changes. ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
9. With the appropriate electrode, which of the following welding processes can operate
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
with or without ||\\//|| ||\\//||
a shielding gas:
||\\//|| ||\\//||
a) Electrogas welding process.
||\\//|| ||\\//|| ||\\//||
b) Gas metal arc welding process.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Flux cored arc welding process.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Submerged arc welding process.
||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Pulsed gas metal arc welding process. - correct answer✔✔c) Flux cored arc welding
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
process.
10. If there is inadequate penetration at the root of a double vee groove, which of the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
following
statements best defines the reason for this: ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) Groove angle exceeds specified amount.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
, b) Root opening too large.
||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Groove depth too large causing melt through on the second side
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Groove angle is too small.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Excessive plate thickness. - correct answer✔✔d) Groove angle is too small
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
11. The continuous method of magnetic particle inspection means:
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) Carrying out all the steps in the process without pause.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
b) Using DC current.
||\\//|| ||\\//|| ||\\//||
c) Applying magnetic particles to the weld while the current is flowing in the yoke.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Applying magnetic particle to the test surface while current flows from one leg of the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
yoke
through the material to the other leg of the yoke. ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Precautions must be taken to prevent over-magnetization of the material. - correct
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔c) Applying magnetic particles to the weld while the current is flowing in the ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
yoke.
12. From the welding problems identified below which one of the five does not fit the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
pattern established ||\\//||
by the other four?
||\\//|| ||\\//|| ||\\//||
a) Insufficient throat.
||\\//|| ||\\//||
b) Incorrect bevel angle.
||\\//|| ||\\//|| ||\\//||
c) Loss of shielding gas.
||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Improper fit up.
||\\//|| ||\\//|| ||\\//||
e) Use of wrong consumable. - correct answer✔✔a) Insufficient throat.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
13. A 10 mm fillet weld has a nominal:
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) Throat dimension of 10 mm.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
1. Which is not a recommended method for surface cleaning of a part for liquid penetrant
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
examination?
a) Cleaning with organic solvents.
||\\//|| ||\\//|| ||\\//|| ||\\//||
b) Blasting with shot or dull sand.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Cleaning with de-greasers.
||\\//|| ||\\//|| ||\\//||
d) Use of de-scaling solutions.
||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Ultrasonic cleaning methods. - correct answer✔✔b) Blasting with shot or dull sand.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
2. Which of the following weld defects is most likely to be missed by radiography in a weld:
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) Undercutting.
||\\//||
b) Porosity.
||\\//||
c) Slag inclusions.
||\\//|| ||\\//||
d) Cracking.
||\\//||
e) Burn through . - correct answer✔✔d) Cracking.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
3. In the choices given below, metallographic tests would be the least informative with
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
regard to the: ||\\//|| ||\\//||
a) Presence of the non-metallic inclusions.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
b) Grain structure in the weld and fusion zone.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Ability of the material to withstand repeated fluctuating loads.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Extent and structure of the heat affected zone.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Number of weld passes. - correct answer✔✔c) Ability of the material to withstand
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
repeated fluctuating loads. ||\\//|| ||\\//||
,4. In producing a drawing for a scale of 1:50, what would be the distance represented by a
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
distance on ||\\//||
the drawing of 6 em? ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) 12 cm. ||\\//|| ||\\//||
b) 30 cm. ||\\//|| ||\\//||
c) 50 cm. ||\\//|| ||\\//||
d) 240 cm. ||\\//|| ||\\//||
e) 300 cm. - correct answer✔✔e) 300 cm.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
5. The mechanical test used to determine the ability of a material to resist failure by brittle
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
fracture
requires the use of: ||\\//|| ||\\//|| ||\\//||
a) A tensile test specimen.
||\\//|| ||\\//|| ||\\//|| ||\\//||
b) A bend test specimen.
||\\//|| ||\\//|| ||\\//|| ||\\//||
c) A compression test specimen.
||\\//|| ||\\//|| ||\\//|| ||\\//||
d) An impact test specimen.
||\\//|| ||\\//|| ||\\//|| ||\\//||
e) A spectrographic test. - correct answer✔✔d) An impact test specimen.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
6. The cooling rate of aT-joint is:
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) Less than that in a butt joint.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
b) Greater than that in a butt joint.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Greater than that in a butt joint only where the carbon equivalent is high .
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Greater at the mid-section than at the start.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Greater at the mid-section than at the finish. - correct answer✔✔b) Greater than that in
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a butt joint.
||\\//|| ||\\//||
7. What are slag and non-metallic inclusions usually caused by?
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
,a) Moisture in the weld joint.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
b) High welding current.
||\\//|| ||\\//|| ||\\//||
c) Loss of shielding gas.
||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Inadequate interpass cleaning. - correct answer✔✔d) Inadequate interpass cleaning.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
8. Where deviations from the drawings are warranted the inspector should do which of the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
following?
a) Authorize approval of the changes.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
b) Obtain official approval for the changes.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Reject the work without any further consideration.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Stop the work until drawing revisions have been completed. - correct answer✔✔b)
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
Obtain official approval for the changes. ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
9. With the appropriate electrode, which of the following welding processes can operate
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
with or without ||\\//|| ||\\//||
a shielding gas:
||\\//|| ||\\//||
a) Electrogas welding process.
||\\//|| ||\\//|| ||\\//||
b) Gas metal arc welding process.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Flux cored arc welding process.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Submerged arc welding process.
||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Pulsed gas metal arc welding process. - correct answer✔✔c) Flux cored arc welding
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
process.
10. If there is inadequate penetration at the root of a double vee groove, which of the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
following
statements best defines the reason for this: ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) Groove angle exceeds specified amount.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
, b) Root opening too large.
||\\//|| ||\\//|| ||\\//|| ||\\//||
c) Groove depth too large causing melt through on the second side
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Groove angle is too small.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Excessive plate thickness. - correct answer✔✔d) Groove angle is too small
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
11. The continuous method of magnetic particle inspection means:
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) Carrying out all the steps in the process without pause.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
b) Using DC current.
||\\//|| ||\\//|| ||\\//||
c) Applying magnetic particles to the weld while the current is flowing in the yoke.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Applying magnetic particle to the test surface while current flows from one leg of the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
yoke
through the material to the other leg of the yoke. ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
e) Precautions must be taken to prevent over-magnetization of the material. - correct
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
answer✔✔c) Applying magnetic particles to the weld while the current is flowing in the ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
yoke.
12. From the welding problems identified below which one of the five does not fit the
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
pattern established ||\\//||
by the other four?
||\\//|| ||\\//|| ||\\//||
a) Insufficient throat.
||\\//|| ||\\//||
b) Incorrect bevel angle.
||\\//|| ||\\//|| ||\\//||
c) Loss of shielding gas.
||\\//|| ||\\//|| ||\\//|| ||\\//||
d) Improper fit up.
||\\//|| ||\\//|| ||\\//||
e) Use of wrong consumable. - correct answer✔✔a) Insufficient throat.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
13. A 10 mm fillet weld has a nominal:
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
a) Throat dimension of 10 mm.
||\\//|| ||\\//|| ||\\//|| ||\\//|| ||\\//||
