CSWIP 3.
1
TECHNOLOGY
PAPER 3
Total points 50/60
The respondent's email
(taravindnagaraj@gmail.com) was recorded
on submission of this form.
1. Who should have access to *1/1
WPQRS?
a. NDT operators
b. Welding inspectors
c. Welders only
d. Welding engineer
2. Who determines what the *1/1
correct preparation(root gap
,root face , included angle
)should be?
a. The welding engineer
b. The welding supervisor
c. The welder will decide
d. The inspector will recommended
what is suitable
3. How is preheat for tack welds *1/1
during assembly and fit up
determined?
a. By the welders as they have
extensive knowledge
b. The fabrication
speciAcation/WPS will give the
requirements
c. The fabrication drawings will give all
the information
d. Any temperature will do as it is only
tack weld
4. Why is it sometimes *1/1
necessary to preheat the base
material before welding?
a. To remove oil and reuse
b. To remove moisture from inside the
material
c. To prevent the possible risk of
cracking
d. Not required if using cellulosic
electrodes as these will provide
enough heat
5. Which of the following would *1/1
not be require before welding?
a. The welding consumables
b. The welder’s qualiAcation
c. calibration of welding equipment
d. The workshop humidity
6. Which BS EN stands is used *1/1
for welding symbols?
a. BS EN 970
b.BS EN 287
c.BS EN 22553
d.BS EN 4515
7. Who responsible for site *1/1
safety?
a. Site quality engineer
b. Welding supervisor
c. An Approved safety engineer
d. Every one
8. Who has the responsibility of *1/1
ensuring the welder is using
correct polarity during welding?
a. The welder and welding
inspector
b. store man and the welder
c. Welding engineer
d. Q/A department
9. When would you measure the *1/1
minimum preheat temperature?
a. on completion of each pass
b. Immediately prior to
commencing the Arst pass and
subsequent passes
c. when the welding is completed
d. between run and the next run to it
10. During root welding which of *1/1
the following would be the main
cause of excess penetration?
a. The root gap is too small in a
accordance with WPS
b. Preheat not used
c. The current is too high
d. Root face is too high
11. The welder had increased *0/1
the voltage on the SAW welding
set, what would be the effect on
the weld?
a. NO effect
b. The weld width would be narrower
c. The penetration will be
increased
d. The weld width would be wider
Correct answer
d. The weld width would be wider
12. What is the maximum OCV *1/1
allowable to initiate an arc when
using AC current?
a. 1000 V
b. 10 V
c.90V
d. 900 V
13. Why is the OCV capped at *1/1
this voltage setting?
a. To save electricity
b. To prevent exploding of the
consumables
c. allows smooth transition into
welding voltage range
d. To reduce the risk of fatality
14. What information would be *1/1
recorded as a minimum on a
completed production weld
a. Size and type of electrode
b. Welding supervisor’s name
c. welders ’s identiAcation, date
and weld number
d. Welding inspector’s name
15. Why would visual inspection *1/1
of the excess weld material at
the bottom of a cross country
pipeline be important?
a. It is the most diWcult area to
weld
b. It is the dirtiest part of the pipe as it
is near to the ground
c. Welders always forget to weld the
bottom
d. It is the most diWcult area to
radiograph
16. Why is it essential to clean *1/1
the excess weld metal on
completion of the production
weld?
a. So it can be ready for painting
b. To remove an y rust
c. To ensure it is suitably clean for
welding inspection and NDT
d. To remove slag from the undercut
17. To assess surface of a weld *1/1
for indirect inspection, the
distance from the surface to the
eyes should be a maximum of
a. 200mm
b. 600mm
c.60mm
d. 6000 mm
18. What is the recommended *1/1
minimum range of illumination
required by BS EN 970 for
inspection of a welded surface?
a.90 to 125 lux
b.150 to 250 lux
c.350 to 500 lux
d. 35 to 50 lux
19. Who should select the *1/1
specific welds for NDT, to cover
the 10% contractual percentage
required by the
specification/code
a. Anyone can select the welds as it is
a random choice
b. The welder has he knows which
welds ar likely to produce the least
defects
c. This will be referenced in the
inspection and test plan
d. nobody , as welding is carried out to
a high standard the use of percentage
NDT of no real value
20. In a transverse weld tensile *1/1
test, if the break was in the weld
material , the sample would be
a. Rejected
b. Acceptable if the UTS is equal to
or greater than the speciAed UTS
plate
c. retested
d. Acceptable if the UTS is between
80-90 % of the speciAed UTS of the
plate
21. in a welder qualification *1/1
testing of 45 mm plates, why are
side bends used instead of
roote and face bends
a. They are easier to produce
b. the testing equipment cannot
handle thick root/ face bends
c. Roots defects are not important for
welder qualiAcations
d. They give more accurate
indications
22. Which of the following is not *1/1
a quantitative test?
a. Root bend
b. Macro hardness
c. Charpy
d. Tensile
23. When examining a *0/1
completed bend test, the angle
of the bend was found to be
185°.the testing specification
calls for the sample to have
been formed through 180°
a. They should be acceptable as the
standard refers to minimum forming
angle
b. They bends should be considered as
failed
c. New bends should be produced
and bent to 180° then re-examined
d. they should be rejected as the angle
is not close enough to be acceptable
Correct answer
a. They should be acceptable as the
standard refers to minimum forming
angle
24. In a cross joint tensile test, *1/1
the following observations were
made; specimen width :20mm,
material thickness :20mm, max
load 180KN break position:
parent plate, what is the UTS?
a. 45KN/MM2
B.450N/mm2
c. 39 KN/mm2
d. 39N/mm2
25. Charpy impact test showing *1/1
rough torn surface after the
completed test , this would
indicate which type of failure
a. fatigue
b. Ductile
c Fatigue to ductile
d. Brittle
26. A butt weld has been made *1/1
by MMA in a 50 thick impacted
tested steel plate. The welding
electrode used as a basic type
5mm diameter, the measured
running parameters for one
runs was 250 amps 24 volts
using DC+ve polarity and a ROL
of 180 mm per minute , what
would be the arc energy?
a. In suWcient information given to the
calculate arc energy
b. 1.9 kj/mm
c. 1.87kj/mm
d. 2.0kj/mm
27. What is a typical ARC *0/1
voltage setting when welding
with TIG(GTAW)process in AC?
a. 90 V
c. 10-12 V
b. 24-26 V
d. 70-90 V
Correct answer
c. 10-12 V
28. When MMA welding what *0/1
will be the effect on the weld if
the power source was changed
from AC to DC -ve?
a. None
b. Higher deposition rate
c. It would slightly increase the
depth of penetration
d. The arc would become unstable
Correct answer
b. Higher deposition rate
29. When using multiple SAW *1/1
arc systems (twin wires etc.),
the arc often has different
polarities or use all AC rather
than DC polarity, this is to
a. Prevent arc blow between the
arcs
b. To maximize productivity
c. To reduce the risk of fatality
d. Makes it easier to initiate the arc
30. Which is the mode of metal *0/1
transfer for the
TIG(GTAW)welding process?
a. Spray transfer
b. Globular transfer
c. Dip transfer
d. None of the above
Correct answer
d. None of the above
31. Which of the following *1/1
process uses a flat
characteristic?
a. MAG(GMAW)
b. Oxy –fuel gas welding
c. Resistance spot welding
d. SAW using more than 1000 amps
32. When welding medium *1/1
carbon steel plates over 100
mm in thickness would the basic
electrodes require any pre
treatment before use?
a. None if they were in vacuum pack
opened 8 hours prior to use
b. none if they were in a sealed
vacuum pack prior to use
c. Heat 500°c for 2 hours if used
outside
d. Baked at 50° for 4 hrs prior to use
33. Which of the following *1/1
defects is usually associated
with the MAG(GMAW) welding
process when using DIP
transfer?
a. Centerline crack
b. Lack of sidewall fusion
c. spatters
d. Tungsten inclusion
34. What would be the most *1/1
likely SAW flux type for welding
medium carbon steel which
requires impact testing?
a. Cellulosic
b. Rutile
c. Fused
d. Agglomerated
35. With which of the following *0/1
NDE process is it possible to
detect the both surface and
slight sub surfaces defects up to
2 mm below the surface
a. visual
b. Dye- Penetrant
c. Magnetic particle using DC
d. Magnetic particle using AC
Correct answer
c. Magnetic particle using DC
36. For MPI using the prods *1/1
methods, which of the following
statement is true
a. it may cause arc damage on the
specimen material surface
b. It requires lower operations there for
easier
c. It can e used with ferritic and non
ferritic materials
d. it is quicker than using a yoke type
electromagnet
37. Which of the following *1/1
commonly used radioactive
isotopes has the longest half-
life?
a. Iridium 192
b. Cobalt 60
c. Thulium 170
d. Ytterbium 169
38. Half-life is a term describe * 1/1
a. the penetrating ability of a gamma
source
b. Half the total time a gamma source
will be useful
c. The time taken by gamma
source to reduce its strength by
half
d. The rate of decay of an x-ray tube
39. What is the greatest *1/1
disadvantage of a radiographic
inspection?
a. Its inability to size defects
accurately
b. The physical size of the equipment
c. the skill level of the operators
d. The harmful effects of ionizing
radiations
40. Which of the following *1/1
defects are unlikely to be
detected by normal radiographic
techniques
a. inters granular corrosion
cracking
b. porosity
c. slag
d. lack of penetration
41. Weld decay occurs in which *1/1
of the following steel types
a. Carbon/manganese
b. Low alloy
c. Any stainless steel
d. Austenitic stainless steel
42. The temperature at which *1/1
chromium carbide is formed is
in the range
a. 350°-550 C
b. 550-800 °C
c. 800-1050°C
d. 1050 – 1500 °C
43. Weld decay cause which of *1/1
the following problem
a. A reduced resistance to
corrosion
b, A lower tensile strength
c. The toughness is reduced
d. The hardness will increase
44. Weld decay can be *1/1
minimized by specifying a steel
with
a. Higher carbon level
b. Higher chromium level
c. lower carbon level
d. lower Chromium level
45. Post weld heat treatment is *1/1
used to reduce
a. residual stress
b. Normalizing
c. Quench and tempering
d. Solution treatment over 1000°C
46. In GMAW MIG/MAG welding, *1/1
which mode of metal transfer
uses frequencies in cycle time?
a. pulse transfer
b. spray transfer
c. dip transfer
d. globular transfer
47. What is meant by the term *1/1
duty cycle?
a. How long a welder can weld for in a
given period
b. The amount of time the electrode is
being used
c. The amount of time a welding
machine can be used
d. The amount of electricity being
consumed
48. what is the purpose of a *0/1
cross joint tensile test? To
check?
a. for lack of side wall fusion
b. the strength of the haz
c. The strength of the weld
d. the strength of the joint
Correct answer
d. the strength of the joint
49. Why is the post weld heat *1/1
treatment carried out?
a. to reduce residual stress
b. to reduse distortion
c. reduse stress raisers
d. welding times are faster and cost
effective
50. What is the main difference *0/1
between EN and ASME welding
procedure?
a. Bend requirements
b. NDT requirements
c. Tensile requirements
d. Visual Acceptance
Correct answer
b. NDT requirements
51. The term manual welding is *1/1
used when the welder controls?
a. wire speed
b. arc length
c. transfer mode
d. burns off rate
52. What do the first 2 numbers *1/1
in MMA electrode represent to
en classification?
a. tensile strength
b. impact value
c. recovery rate
d. welding position
53. Pure argon is used with the *1/1
MIG process to weld which
material?
a. all materials
b. steels
c. stainless steels
d. aluminum
54. If preheating is decreased, *1/1
which of the following would be
most greatly affected?
A. tensile strength
b. distortion
c. hardness
d. toughness
55. In medium carbon steels a *0/1
fast cooling rate would most
likely cause which of the
following?
a. corrosion cracking
b. lamellar tearing
c. susceptible microstructure
d. solidiAcation cracking
Correct answer
c. susceptible microstructure
56. Which standard is used for *1/1
European welding procedure
qualification?
a. EN 22553
b. EN 15614
c. EN 499
d. EN 287
57. Sequential welding is *1/1
referred to which of the
following?
a. Fatigue line
b. residual stress
c. distortion
d. not associated with any of the
above
58. Which MMA electrode is *1/1
commonly used for vertical
down welding?
a. low hydrogen
b. basic
c. cellulosic
d. rutile
59. What unit measurement is *1/1
used for charpy impact testing?
a. joules
b. N/mm2
c. kj
d. vpn
60. Included angle of V joint * 0/1
a.30
b.35
c.120
d. 70
Correct answer
d. 70
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