CSWIP 3.1
MULTI CHIOICE QUESTIONS
1
Applying preheat when welding carbon manganese steel is normally done to avoid:
a)
b)
c)
d)
2
Which of following mechanical properties of a weld in carbon manganese steel is most
affected if the heat input per unit length of weld is excessively high?
a)
b)
c)
d)
3
Linear misalignment
Undercut
Overlap
Linear slag inclusion
Which of the following welding processes uses a resistive heating system to achieve
weld metal deposition?
a)
b)
c)
d)
6
Impound all welding consumables
Report the occurrence to high authority
Stop all welding
Call for full NDT checks
Which of the following defects is unlikely to be found by visual inspection.
a)
b)
c)
d)
5
Elongation
Tensile strength
Hardness
Toughness
You observe centerline cracking a weld that has been made one of five work stations
each making similar components. The first action to take is:
a)
b)
c)
d)
4
Slag inclusions
Hydrogen cracking
Lack of sidewall fusion
Porosity
Manual metal arc welding
Submerged-arc welding
Electro slag welding
Resistance spot welding
Which of the following units could Charpy V notch energy be measured in?
a)
b)
c)
d)
Pounds per square inch
Joules
Newtons per square millimeter
None of the above
Page 1 of 28
Set A
7
The usual method of assessing the sensitivity of radiograph is by means of a:
a)
b)
c)
d)
8
Under normal contract conditions, weld procedure approval tests for pipe work are:
a)
b)
c)
d)
9
Austenitic stainless steels
High strength alloy steels
Low and medium strength steels
Low carbon steels
Manual metal arc welding of low alloy steels is more likely to be performed with:
a)
b)
c)
d)
13
The prevention of porosity
The prevention of cracking
The enhancement of arc voltage
Their ease of arc starting
For which of the following is pre-heating most likely to be required?
a)
b)
c)
d)
12
Bend test
Macro examination
Impact tests
Fracture tests
Hydrogen controlled electrodes were developed principally for:
a)
b)
c)
d)
11
Mandatory
Depend upon site and weather conditions
Dependent upon the contractor's confidence in his procedures
Only required when CO2 welding is to be used.
Which of the following destructive tests is not normally required for welder approval test
for mild steel?
a)
b)
c)
d)
10
Dosimeter
Fluoroscope
I.QI (Penetrameter
Clinometer
Rutile electrodes
Cellulosic Electrodes
Iron powder electrodes
Basic hydrogen controlled electrodes
Which of the following defects is more common to weld deposited by the CO2 welding
process than weld deposited by manual metal arc?
a)
b)
c)
d)
Slag inclusion
Excess penetration
Lack of side fusion
Tungsten inclusions
Page 2 of 28
Set A
14
Which defect would you expect to obtain in TIG welds in non-deoxidized steel?
a)
b)
c)
d)
15
Which of the following can arise from copper inclusions is a ferrite steel weld?
a)
b)
c)
d)
16
Radiography
Magnetic particle
Penetrants
Ultrasonic flaw detector
Which of the following defects do you not expect to find by visual examination of
completed welds?
a)
b)
c)
d)
20
Penetrants
Magnetic particles
Radiography
Ultrasonic flaw detector
You suspected that ferritic steel plates, which have been edge, prepared contain crack in
the prepared edges. Which NDT method would you use to check this?
a)
b)
c)
d)
19
Cellulosic electrodes
Submerged arc with acid flux
Spray transfer CO2 welding
Basic coated normal metal arc electrodes
Which of the following methods of NDT would be most likely to detect lack of side fusion
in ferritic steel welds?
a)
b)
c)
d)
18
Weld metal cracks
HAZ cracks
Lamellar tearing
Porosity
Which of the following is likely to give the highest impact strength in ferritic weld metal?
a)
b)
c)
d)
17
Under cut
Porosity
Tungsten inclusions
Linear misalignment
Linear slag inclusions
Under cuts
Overlap
Linear misalignment
Stress relief is not helpful in one of the following cases. Which one?
a)
b)
c)
d)
In improving resistance to stress corrosion cracking
In dimensional stability after machining improving
In lowering the peak residual stress
In softening the steel
Page 3 of 28
Set A
21
What effect to mid thickness lamination in steel plate normally have when they are
located within a weld HAZ?
a)
b)
c)
d)
22
When hydrogen control is specified for a manual metal arc-welding project the electrode
would normally be:
a)
b)
c)
d)
23
It is too expensive
The wire would be too thick
The weld metal composition may be wrong
The wire is too short
When open site working, serious porosity in manual metal arc welding is brought to your
attention. What would you investigate?
a)
b)
c)
d)
27
Concrete shuttering welding team
Pipe welders
Plate welders
Plant maintenance welders
You noticed manual metal arc welding electrodes, stripe of flux, are being used as filler
wire, for TIG welding. You would object because:
a)
b)
c)
d)
26
Color
Length
Trade name
AWS/BS639 Code Letter
When manual metal arc welding is being carried out on an open construction site, which
groups of welder are most likely to require continuous monitoring?
a)
b)
c)
d)
25
Cellulosic
Iron oxide
Acid
Basic
You would with certainty recognize a hydrogen controlled flux covered electrode from it’s:
a)
b)
c)
d)
24
Cause lamellar tearing
Fuse together to form a bond
Affect the weld metal composition
Cause internal tearing on a micro-scale
Electrode type
Power plant type
Electrode storage
Day temperature
The steel composition in structural contract is changed form 0.15% carbon, 0.6%
manganese, to 0.2% carbon, 1.2% manganese. Might this influence the incidence of?
a)
b)
c)
d)
Porosity
Cracking in the weld area
Under cut for fillet welds
Lack of root fusion defects
Page 4 of 28
.
Set A
28
One of the following alloys is non-magnetic, which?
a)
b)
c)
d)
29
When the TIG welding Austenitic Stainless Steel pipe. Argon gas backing is called for.
This is to:
a)
b)
c)
d)
30
Single operator transformer
Multi operator transformers
AC/DC composite power unit
Diesel engine driven motor generator
If submerged welding to be used to make butt welds, which would you be most critical of:
a)
b)
c)
d)
34
Leg length
Actual throat thickness
Weld width
For open site manual metal arc welding the following equipment is available. Which
would you choose for safe working?
a)
b)
c)
d)
33
Scattered porosity
Worm hole porosity
Parent metal cracking
Lack of penetration
IN UK practice, BS 499 Part2 specifies that the drawing dimension quoted for a fillet weld
is the:
a)
b)
c)
32
Prevent oxidation
Prevent under bead cracking
Prevent porosity
Control the penetration bead shape
Pre-heating a carbon steel manual metal arc welding is carried out to minimize the risk of
a)
b)
c)
d)
31
4.0% Chromium molybdenum
12.0% Chromium
Austenitic Stainless Steel
9.0% Nickel Steel
The root gap tolerance
The angle of penetration
The root face width
The gas cut finish
During CO2 welding, the arc length is most likely to be affected by:
a)
b)
c)
d)
The wire diameter
The current return connections
The gas flow rate
The torch to work angle
Page 5 of 28
Set A
35
Pre heating for arc welding applies to:
a)
b)
c)
d)
36
You see a welder using oxy-acetylene flame with along feathered inner cone. What
would be the effect of this on carbon steel?
a)
b)
c)
d)
37
Side bend
Root bend
Face bend
Guided bend
Lamellar tearing has been occurred in steel fabrication. BEFORE welding could it have
been found by:
a)
b)
c)
d)
41
HAZ cracking
Fatigue life
Residual stresses
Yield strength
Bend test specimens have been taken from a 25 mm thick carbon steel butt weld. Which
would show lack of inter-run fusion:
a)
b)
c)
d)
40
The skill of the welder
The quality of the materials
The non-destructive procedures
The manufacturing methods
A fabricating procedure calls for fillet welds to be blended in by grinding. This is to
influence:
a)
b)
c)
d)
39
The weld could be hard and brittle
The weld metal could be too soft
There will be no effect on the weld
The weld has under cut
A welder qualification test is to verify:
a)
b)
c)
d)
38
Assembly welding only
Assembly and tack welding
Joint over 25 mm thick only
Cruciform welds only
X-ray examination
Dye penetrant
Ultrasonic inspection
It would not have been found by any inspection method
You are to over see arc welding of some machine fittings and find they are cadmium
plated. What you:
a)
b)
c)
d)
Permit it to proceed
Permit it to proceed with fume extraction
Stop the operation at once
Advise the welder to drink milk and proceed
Page 6 of 28
Set A
42
What two functions in arc welding must be in equilibrium to enable a stable arc to be
established?
a)
b)
c)
d)
43
In MMA welding, what parameter is used for the control penetration into the base
material?
a)
b)
c)
d)
44
Macro
Nick break
Hardness
Charpy vee notch
Degreasing components are essential for quality welding but some agents may:
a)
b)
c)
d)
48
Constant voltage
Flat Characteristic
Drooping Characteristic
Motor Generator
Which of the following destructive tests would indicate the toughness of weld
metal/parent metal - HAZ.
a)
b)
c)
d)
47
Root Face
Bevel Angle
Root Gap
One of the above
What type of power source characteristic is required for manual welding?
a)
b)
c)
d)
46
Voltage
Welding speed
Iron powders in the coating
Current
In the welding of butt joint from one side, which of the following controls the profile of the
root bead?
a)
b)
c)
d)
45
Are voltage
Current
Wire/electrode feed rate
Metal bum-off rate
Cause corrosion Problems
Give off Phosgene Gas
Leave Residues
All of the Above
Which of the following chemical elements has the greater effect on the harden ability of a
steel plate?
a)
b)
c)
d)
Molybdenum
Chromium
Titanium
Carbon
Page 7 of 28
Set A
49
In MAG/CO2 welding, which parameters give the greatest control of weld appearance
during dip transfers or short-circuiting welding?
a)
b)
c)
d)
50
In MMA welding, the slag produced can be varied to suit the welding position; which type
of slag would be required for welding in the HV position?
a)
b)
c)
d)
51
Ductility
Toughness
Fatigue strength
Mechanical strength
In the welding of Austenitic pipe work, the borer is usually purged with Ar to?
a)
b)
c)
d)
55
Iron powder
Calcium fluoride
Silicon
Calcium carbonate
Welds made with high heat inputs show a reduction in one of the following properties?
a)
b)
c)
d)
54
The core wire
The flux coating
Iron powder with the flux coating
What constituent is needed in coating of an electrode to prevent formation of porosity in
welding of rimming steel?
a)
b)
c)
d)
53
Fluid
Viscous
None of the above
Semi fluid
The weld metal deposits of manual metal arc electrode achieves its mechanical strength
through?
a)
b)
c)
52
Wire sick-out length
Amperage
Wire feed speed
Inductance
Prevent formation of porosity in the weld
Prevent burn-through in the root run
Prevent oxidation of the rood bead
Eliminate the formation of H2
In X-ray the quality of the radiograph negative is assessed by the?
a)
b)
c)
d)
Density of the Film
IQI indicator
KVA available
Stand-off distance
Page 8 of 28
Set A
56
A steel described as QT will have improved tensile properties, it has?
a)
b)
c)
d)
57
Which one of the following steels would give rise to the formation of porosity when
autogenously welded with an arc process?
a)
b)
c)
d)
58
Cracking in the HAZ
The formation of chromium carbides
Cracking in the weld metal
Distortion
Submerged arc fluxes can be supplied in two forms; these are?
a)
b)
c)
d)
62
Hydrogen control is needed
Iron powder in the electrode
Higher arc voltage can be obtained
Shorter arc length can be achieved
In the welding of Austenitic stainless steels. The electrode and plate material can be
purchased with low carbon contents. The reason for this is to prevent?
a)
b)
c)
d)
61
Insufficient flux melting
Excessive flux melting
Slag removal difficulties
Spatter
The use of cellulosic electrode is often made when welding the root pass of pipes in the
field. This is because?
a)
b)
c)
d)
60
Fully killed steel
Semi killed steel
Rimming steel
Fine grained steel
In submerged arc welding, the use of excessively high voltage would result in?
a)
b)
c)
d)
59
Control of chemical composition
Been heat treated
Been quality tested
Been vacuum melted
Sintered and agitated
Agitated and fused
Crushed and agglomerated
Fused and agglomerated
In a steel, which has improved creep properties at elevated temperature, which one of
the following elements helps in this improvement?
a)
b)
c)
d)
Tungsten
Manganese
Molybdenum
Carbon
Page 9 of 28
Set A
63
Welding a steel plate of CE of 0.45 would require preheating to?
a)
b)
c)
d)
64
Which of the following processes uses the "keyholing" system of fusion?
a)
b)
c)
d)
65
Shows reduction in size
Is flat and featureless
Breaks in the weld metal
Breaks in the parent material
What destructive test would be required to ascertain the likelihood of cracking in the HAZ
of a weld?
a)
b)
c)
d)
69
Have poor profile
Have larger grain size
Have high hardness in the HAZ
Have low elongation properties
In a tensile test, a brittle material would be indicated if the fracture surface?
a)
b)
c)
d)
68
Liquid state
Solid state
Plastic state
Elastic state
Welding procedures may require welds to be deposited at a controlled rate heat input.
High heat inputs would?
a)
b)
c)
d)
67
Friction welding
Diffusion bonding
Electron beam welding
Autogenous TIG welding
In friction welding, is the metal at the interface in the?
a)
b)
c)
d)
66
Prevent the formation of sulphides
Prevent hardening in the HAZ
Prevent the formation of carbides
To improve mechanical properties in the weld
Nick break
Side bend test
Charpy input
Macro test
In submerged arc welding, excessive arc voltage may cause?
a)
b)
c)
d)
Excessive penetration
Change in weld metal composition
Narrow weld width
Excessive bead profile
Page 10 of 28
Set A
70
The British code for visual inspection requirements is:
a)
b)
c)
d)
71
A code of practice for visual inspection should cover the following:
a)
b)
c)
d)
72
Cap height
Toe blend
Weld width
a, b & c
You notice a very "veed" ripple shape. This is most likely caused by:
a)
b)
c)
d)
76
Linear misalignment
Incorrect tilt angle
Differing root face widths
All of the above
When visually inspecting a completed single vee butt weld cap you would certainly
assess:
a)
b)
c)
d)
75
Excessive root face width
Excessive root gap size
Low current setting
Both a & c
Incomplete root fusion weld certainly be caused by:
a)
b)
c)
d)
74
Before, during and after welding activities
Before welding activities only
After welding activities only
None of the above
Incomplete penetration in a butt joint could be caused by:
a)
b)
c)
d)
73
BS4872
BS499
BS4870
None of the above
Poor consumable choice
Welding position
Excessive travel speed
All of the above
"Toe blending" is important as it may affect:
a)
b)
c)
d)
Corrosion
Fatigue life
Overlap type defects
All of the above
Page 11 of 28
Set A
77
Slag inclusion would occur with:
a)
b)
c)
d)
78
Undercut is principally caused by:
a)
b)
c)
d)
79
Change the properties of the weld
Influence the visual acceptability
Require re-approval of a weld procedure
All of the above
A magnifying glass may be used during visual inspection but BS 5289 states that its
magnification should be:
a)
b)
c)
d)
83
Give information to the welder
Give information to the inspector
Give "Confidence" to a product
All of the above
An essential variable may:
a)
b)
c)
d)
82
Its depth
Its length
Its blending
All of the above
A welding procedure is useful to:
a)
b)
c)
d)
81
Excessive amps
Excessive volts
Excessive travel speed
All of the above
Undercut is normally assessed by:
a)
b)
c)
d)
80
Manual metal arc
Metal inert gas
Submerged arc welding
Both a & c
Up to 5 Ø
2-2.5 Ø
5-10 Ø
None of the above
When visually inspecting a fillet weld, it would normally be "sized" by:
a)
The leg lengths
b)
The actual throat thickness
c)
The design throat thickness
d)
Both a & c
Page 12 of 28
Set A
84
The planar defect is:
a)
Incomplete fusion defects
b)
Slag inclusion
c)
Incomplete penetration
d)
Both a & c
85
Penetrant and Magnetic particle inspection are mainly used to:
a)
b)
c)
d)
86
Defects outside of the limits specified in a standard should always be:
a)
b)
c)
d)
87
Poor access
Loss of gas shield
"Dirty" materials
All of the above
"Weave technique" may give rise to:
a)
b)
c)
d)
91
Basic, cellulosic and rutile
Neutral, cellulosic and rutile
Basic, cellulosic and neutral
None of the above
The main causes of porosity in welded joints are:
a)
b)
c)
d)
90
Poor maintenance of equipment
Incorrect setting
Poor inter run cleaning
All of the above
Manual metal arc electrodes can be grouped into three main types. These are:
a)
b)
c)
d)
89
Repaired
Reported to "a senior person"
Assessed along with other defects
All of the above
MIG welding tends to be susceptible to lack of fusion problems. This is because of:
a)
b)
c)
d)
88
Aid visual inspection
Because application standard says so
To confirm "visual uncertainties"
All of the above
Better profiles
Improved toe blending
Improved ripple shape
All of the above
Cracks in welds may be due to:
a)
b)
c)
d)
Solidification problems
Hydrogen problems
Excessive stresses
All of the above
Page 13 of 28
Set A
92
With reference to a root penetration bead, you could certainly assess:
a)
b)
c)
d)
93
A fatigue failure characteristic by the appearance of the fracture surface. It would be:
a)
b)
c)
d)
94
Cracking
Misalignment problems
Inclusions
All of the above
Macroscopic examination requires any specimen to be inspected:
a)
b)
c)
d)
98
Poor welding technique
Welding process
Welding position
All of t he above
Flame cut preparations may, during welding, increase the likelihood of:
a)
b)
c)
d)
97
It may reduce the thickness dimension of a component
It may cause liquation cracks
It may cause hard zones
All of the above
Overlap in welds could be influenced by:
a)
b)
c)
d)
96
Rough and torn
"Cheveron" - like
Smooth
None of the above
"Stray arcing" may be regarded as a serious defect. This is because:
a)
b)
c)
d)
95
Root fusion and penetration
Root concavity
Burn-through
All of the above
Once, after etching
Twice, before and after etching
Using a microscope
None of the above
Which of the following may be classes as a "more serious defect":
a)
b)
c)
Slag inclusions
Fusion defects (interun)
Fusion defects (surface)
Page 14 of 28
Set A
99
Code of practice is:
a)
b)
c)
d)
100
Movement of the arc by magnetic forces in MMA welding is termed:
a)
b)
c)
d)
101
Friction welding
Resistance welding
Plasma welding
All of the above
Which electrode classification would be relevant AWS A 5.1-81:
a)
b)
c)
d)
106
The cutting of single bevel preparations
The removal of deposited welds
The cutting of single U-type preparations
Which of the following processes joins metals plastically:
a)
b)
c)
d)
105
The temperature required for cut initiation
The ability to cut stainless steels
The depth of cut obtainable
None of the above
The main uses of arc cutting/gouging processes is in:
a)
b)
c)
104
Hydrogen cracking in HAZ
Solidification cracking in the weld metal
Hydrogen cracking in the weld metal
Lamellar tearing in the weld metal
Oxy pressure and nozzle size would influence what in flame cutting:
a)
b)
c)
d)
103
Arc deviation
Arc misalignment
Arc blow
Arc eye
A metallurgical problem most associated with submerged arc welding is:
a)
b)
c)
d)
102
A standard for workmanship only
A set of rules for manufacturing a specific product
Levels of acceptability of a weldment
None of the above
E 6013
E 5133
E 7018 - G
Fleet weld 5
Which of the following coating is associated with "Stove" welding?
a)
b)
c)
d)
Rutile
Cellulosic
Basic
Oxidizing
Page 15 of 28
Set A
107
A common gas mixture used in MIG welding nickel alloys to combine good levels of
penetration with good arc stability would be:
a)
b)
c)
d)
108
The type of SAW flux is more resistance to moisture absorption:
a)
b)
c)
d)
109
A large grain formation
A reduction of in service temperature to sub zero levels
Ferritic rather than austenitic steels
All of the above
Repair welding is often more difficult than production due to:
a)
b)
c)
d)
113
Low ductility values
Low fracture toughness values
High fracture toughness values
High tensile strength
The likelihood of brittle fracture in steels will increase with:
a)
b)
c)
d)
112
3200° C
2300° C
5000° C
None of the above
A large grain structure in steels is said to produce:
a)
b)
c)
d)
111
Fused
Agglomerated
Basic
All of about the same resistance
The flame temperature of oxy/acetylene mixture gas is given as:
a)
b)
c)
d)
110
100% CO2
100% argon
80% argon 20% CO2
98% argon 2% oxygen
The material being ingrained with in-service contaminates
Restricted access with the repair area
The possible position of the weld
Any of the above
Hydrogen cracking in the weld metal is likely when:
a)
b)
c)
d)
Carbon manganese steels
Stainless steels
Micro alloyed steels (HSLA)
Low carbon steels
Page 16 of 28
Set A
114
EN standard 288 would refer to which of the following:
a)
b)
c)
d)
115
Porosity is caused by:
a)
b)
c)
d)
116
Annealing
Normalizing
Hardening
Stress relieving
The presence of iron sulphide in the weld metal is most likely to produce which of the
following upon contraction of the weld:
a)
b)
c)
d)
120
Lack of side wall fusion
Surface undercut
Incompletely filled groove
Overlap
The process of tempering is often carried out to regain toughness after which of the
following processes:
a)
b)
c)
d)
119
A root bend test
A side bend test
A face bend test
None of the above
Ultrasonic testing is of advantage in detecting which of the following weld imperfections
over other NDT methods:
a)
b)
c)
d)
118
Entrapped slag in the solidifying weld
Entrapped gas in the solidifying weld
Entrapped metallic inclusions in the solidifying weld
None of the above
In bend test, the face of the specimen is in tension and root is in compression; the type of
test being carried out would be:
a)
b)
c)
d)
117
Welder approval testing
Welding equipment
Welding procedure approval
Consumables for submerged arc welding
Solidification cracking
Hydrogen cracking
Intergranular corrosion
Stress corrosion cracking
Generally the most suitable method of detecting lack of sidewall fusion would be:
a)
b)
c)
d)
Ultrasonic
MPI
Radiography
Penetrants
Page 17 of 28
Set A
121
Hot shortness term is used to indicate:
a)
b)
c)
d)
122
The use of cobalt as an isotope would generally be used on:
a)
b)
c)
d)
123
Knowledge and experience
Literacy
Honesty and integrity
All of the above
The correct term for a joint prepared on one component only is:
a)
b)
c)
d)
127
Weld on "arrow" side
Weld on "other" side
Weld on site
Full penetration required
A welding inspector's main attribute includes:
a)
b)
c)
d)
126
Re-qualification of the welding procedure
Possible change in the weld's microstructure
Possible change in t he mechanical properties
All of the above
Weld symbol placed on a dotted line in accordance with ISO requirements means:
a)
b)
c)
d)
125
Thin materials
Tee joints
Plate thickness greater than 25mm
None of the above
In welding procedure term, a change in essential variable means
a)
b)
c)
d)
124
Lamellar tearing
Solidification cracking
Hydrogen cracking
None of the above
A bevel butt
A J butt
A "K" butt
All of the above
Technically a code of practice is:
a)
b)
c)
d)
A standard
A "set of rules" for the manufacture of a product
Related to welder and weld procedure approval
All of the above
Page 18 of 28
Set A
128
The correct term for cap height is:
a)
b)
c)
d)
129
A tensile test will assess
a)
b)
c)
d)
130
Weld ability aspects
Crack sensitivity aspects
Typical mechanical properties
All of the above
A basic electrode would normally:
a)
b)
c)
d)
134
Weld decay
Sensitization
Solidification cracking
All of the above
Carbon equivalent values are useful to determine:
a)
b)
c)
d)
133
They can withstand creep failure
They may suffer re-heat cracking problems
They may suffer loss of toughness
All of the above
An austenitic stainless steel may suffer:
a)
b)
c)
d)
132
Impact values
Stress
Strain
Both b & c
The important point if high temperature steel is that:
a)
b)
c)
d)
131
Reinforcement
Cap profile height
Excessive weld metal
All of the above
Have superior mechanical properties
Require baking before use
Not be used on low carbon steels
Both a and b
When referring to TIG welding, the shielding gas could be:
a)
b)
c)
d)
Argon + Hydrogen
Argon + Helium
Argon + Nitrogen
All of the above
Page 19 of 28
Set A
135
When referring to MIG welding, the shielding gas could be:
a)
b)
c)
d)
136
Submerged arc utilities:
a)
b)
c)
137
Temperature of the component
The C.E. % of the material
The elements in the material
All of the above
Post heat treatment:
a)
b)
c)
d)
141
Planar
Cracks
Lack of fusion
All of the above
The weldability of a material may be affected by:
a)
b)
c)
d)
140
Ability to find more defects
Lowest skill requirements
Ability to detect laminations
Both a and c
The most serious defects
a)
b)
c)
d)
139
Deep penetration characteristic
High deposition rate on DC+
Flat (P.A.) welding only
Ultrasonic would be preferred over radiography due to:
a)
b)
c)
d)
138
Argon
Argon + 1% Oxygen
Argon + 20% CO2
None of the above
Must be applied to welds if a crack free weld is required
Should never exceed 300 ºC
May stress relieve
Must always be applied using gas flames
Which of the following welding processes may be described, as a low hydrogen process
in comparison with general MMA welding?
a)
b)
c)
d)
e)
TIG
MIG
MAG
None of the above
All f the above
Page 20 of 28
Set A
142
Which form of NDT could be used on a fillet weld on aluminum?
a)
b)
c)
d)
e)
f)
g)
143
Which of the following NDT methods would not detect sub-surface defects?
a)
b)
c)
d)
e)
144
To adjust the voltage
To adjust the amperage
To convert AC to DC.
To prevent arc strikes
Fish - eyes, chevron cracks and fissures are:
a)
b)
c)
d)
147
To initiate the arc
To obtain penetration
To avoid lack of fusion
MMA welding does not have a high O.C.V.
What is the purpose of a `rectifier' in relation to welding plant?
a)
b)
c)
d)
146
MPI
Dye penetrant testing
Ultrasonic testing
Radiography
All of the above would detect sub-surface defects
Why have a high O.C.V. with MMA welding
a)
b)
c)
d)
145
Dye penetrant testing
Ultrasonic testing
Radiography
MPI
a, b and c
d only
All of the above
Not associated with welding
Types of cracks
Only encountered in MMA welds
Hydrogen related problems
Pre heating prior to welding:
a)
b)
c)
d)
e)
Must always be carried out
Need not be carried out if post heat treatment is to follow welding
Is always carried out using gas flame
None of the above
All of the above
Page 21 of 28
Set A
148
What does pre heat prior to welding have an affect on:
a)
b)
c)
d)
e)
149
The toes of the cap on a butt weld:
a)
b)
c)
d)
150
The distance from toe to the face
The distance from the root to face center
The distance from the root to the toe
The distance from toe to toe
Quality assurance is:
a)
b)
c)
d)
154
The distance from the toe to the face
The distance from the root and to the face center
The distance from the root to the toe
The distance from toe to toe
What is `throat' thickness of the fillet weld?
a)
b)
c)
d)
153
A `U' preparation
A `V' preparation
A `double V' preparation
Lack of side wall fusion does not exist with MMA
What is the leg length of a fillet weld?
a)
b)
c)
d)
152
Must overlap on the external surface of a pipe or plate by at least 1.5mm
Must be grounded
Must never be grounded
None of the above
Which of the following butt-weld preparations is generally most susceptible to `lack of
side wall fusion' during MMA welding?
a)
b)
c)
d)
151
Hardenability
Weldability
Cooling rate
All of the above
None of the above
The inspection of a product or service
A management system designed only to ensure material compatibility
Not solely related to planning and inspection
The implementation of quality control
Which welding process is considered the most versatile?
a)
b)
c)
d)
SAW
TIG
MIG/MAG
MMA
Page 22 of 28
Set A
155
Quality assurance:
a)
b)
c)
d)
156
Which NDT method would never be use on a 6" aluminum pipe weld?
a)
b)
c)
d)
157
Argon
Xenon
Carbon dioxide
Helium
Why is welding is shielded?
a)
b)
c)
d)
161
Must have at a thorough knowledge of NDT
Must know how to interpret radiographs
Must have a thorough knowledge of welding metallurgy
None of the above
All of the above
Which of the following is not an inert gas?
a)
b)
c)
d)
160
Because it is applied at a high amperage
Because it is applied when the root is still hot
Because it could cause `hot - shortness'
Because it heat treats the root
Generally speaking a welding inspector, as a minimum requirement:
a)
b)
c)
d)
e)
159
Radiography
Magnetic particle inspection
Ultrasonic testing
Dye penetrant testing
Why is hot - pass so-called?
a)
b)
c)
d)
158
Is an other term for inspection
Related to all activities and functions concerned with the attainment of quality
Is the activity of ensuring documents relating to specific contracts are in order
Is the activity of carrying out quality control
To eliminate hydrogen
To retard the cooling rate of the weld
To eliminate the atmosphere
To ensure maximum heat input
The primary duty of welding inspector:
a)
b)
c)
d)
Is ensure welds are defect free
Is to ensure the weld is free from residual stresses
Is to write job specifications
Is to ensure all welding and associated activities are carried out in accordance
with the Procedure(s)
Page 23 of 28
Set A
162
Which of the following welding processes is most susceptible to lack of fusion?
a)
b)
c)
d)
163
Fillet welds are
a)
b)
c)
d)
e)
164
Fillet welds
Corner joints
Butt welds
Single bevel butt welds
Which arc welding process utilizes a non-consumable electrode?
a)
b)
c)
d)
e)
168
Voltage
Amperage
Polarity
None of the above
Lap joints contain:
a)
b)
c)
d)
167
Associated Pipeline Industries
American Pipe Institute
American Pipeline Institute
American Petroleum Institute
When welding using the MMA process, varying the arc length will give the most variation
of:
a)
b)
c)
d)
166
Preferable to butt welds due to high strength
Difficult to assess with Non Destructive Testing in comparison with butt (groove)
welds
Used only for `appearance' purposes
Only feasible on steels
All of the above
API stands for
a)
b)
c)
d)
165
Submerged arc
CO2 (metal active gas)
Manual metal arc
Tungsten inert gas
MIG
TIG
MMA
SAW
All of the above
A welding Inspector:
a)
b)
c)
d)
e)
Must know how to interpret radiographs
May be required to interpret radiographs on certain contracts
Should be able to weld
Both b and c
All of the above
Page 24 of 28
Set A
169
Which electrodes are very susceptible to causing porosity in the deposited welds if long
arc employed?
a)
b)
c)
d)
170
What do you understand by the term `minimum interpass temperature?
a)
b)
c)
d)
171
Bend test
Nick - break test
Macro test
None of the above
All of the above
What is the purpose of a tensile test?
a)
b)
c)
d)
175
It does not cause a problem
It may lead to cracking, especially with small welds between large components
It causes distortion
Restraint is term not used in relation to welding
Which mechanical test (s) can be used to make an assessment of surface breaking
defects?
a)
b)
c)
d)
e)
174
It is solely the decision of the welder
It depends on the requirement of the procedure and specifications
It is solely the decision of the welding inspector
No, all welds should be completed before dropping the temperature to ambient
What is the problem with `restraint' during welding?
a)
b)
c)
d)
173
Minimum pre heat temperature
Minimum stress relieve temperature
The lowest temperature to be used when normalizing
The lowest temperature allowed during welding and between passes
Is it permissible to allow a single `V' butt weld to cool down between passes?
a)
b)
c)
d)
172
Basic
Cellulosic
Rutile
None of the above
To assess tensile strength
To assess ductility
To assess yield strength
All of the above could be assessed
When a metal returns to its original shape after an applied load has been removed, the
metal is said to have:
a)
b)
c)
d)
Plasticity
Ductility
Elasticity
Malleability
Page 25 of 28
Set A
176
Fluctuating load is: cyclic stresses, below the UTS on a weld component may lead to:
a)
b)
c)
d)
177
Stress is equal to:
a)
b)
c)
d)
178
An oval tube
Another term for burn through
A type of porosity
A shrinkage defect
Which British standard relates to welding term and symbols
a)
b)
c)
d)
182
N/mm2
PSI
mm
Both a and b
What is a crater pipe?
a)
b)
c)
d)
181
Stress
Load divide by cross - sectional area
Extension of gauge length divided by the original gauge length
Toughness
Stress can be measured in:
a)
b)
c)
d)
180
Stress
Load divided by cross - sectional area
Extension of gauge length divided by original gauge length
Toughness
Strain is equal to:
a)
b)
c)
d)
179
Tensile failure
Yield failure
Fatigue failure
Shear failure
BS 639
BS 638
BS 18
BS 499
How could you accurately measure the root radius of a charpy or Izod specimen?
a)
b)
c)
d)
With a machine called shadowgraph
With a rule
With a vernier caliper
With a densitometry
Page 26 of 28
Set A
183
Herringbone porosity is:
a)
b)
c)
d)
e)
184
A crack is a weld zone:
a)
b)
c)
d)
185
Residual stress
Shear stress
Hoop stress
Tensile stress
Distortion may be affected by:
a)
b)
c)
d)
e)
188
Lack of penetration
Lack of fusion
The freezing of the electrode
All of the above
Stress acting in the opposite direction of compressive stress is known as:
a)
b)
c)
d)
187
Is repairable
Always results in cut - out and complete reweld
Is acceptable up to 2mm in length
May be repaired or cut - out depending on specification requirements.
If the amperage were too low during the welding of a root bead the possible result would
be:
a)
b)
c)
d)
186
A particular pattern of porosity
Made up of wormholes
Made up of piping
All the above are correct
None of the above
Restraint
Heat - input
Material properties
Material thickness
All of the above
Distortion:
a)
b)
c)
d)
e)
Is plastic deformation
Is elastic deformation
Is another term for stress
May be elastic or plastic deformation
All of the above
Page 27 of 28
Set A
CSWIP 3.1
MULTI CHOICE QUESTIONS
SET A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
b
d
c
d
c
b
c
a
c
b
b
d
c
b
a
d
d
b
a
b
a
d
d
b
c
c
b
c
a
c
a
d
c
b
b
a
a
b
a
d
c
a
d
c
c
d
d
Page 28 of 28
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
d
d
b
b
c
b
c
b
b
c
b
c
b
d
c
b
c
c
b
b
b
b
d
a
d
d
d
c
b
d
d
d
d
d
b
d
d
d
c
b
a
d
d
d
d
c
c
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
d
d
b
c
b
c
b
c
b
a
a
b
b
a
a
b
d
d
c
c
b
c
a
c
a
a
b
d
d
b
d
d
b
c
d
d
d
d
d
d
a
a
d
d
d
c
e
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
b
b
a
c
a
d
d
a
a
c
b
c
d
b
b
d
d
c
c
d
b
b
d
a
a
b
b
a
d
b
b
e
d
c
c
b
c
d
d
d
a
e
d
d
d
e
d
Set A