187 rew

68

What destructive test would be required to ascertain the likelihood of cracking in the HAZ of a weld? a)  b) c) d)

69

In submerged arc welding, excessive arc voltage may cause? a)  b) c) d)

70

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

A code of practice for visual inspection should cover the following: a)  b) c) d)

72

Excessive penetration Change in weld metal composition  Narrow weld width Excessive bead profile

The British code for visual inspection requirements is: a)  b) c) d)

71

 Nick break Side bend test Charpy input Macro test

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)

Linear misalignment Incorrect tilt angle Differing root face widths All of the above

 Page 13 of 32

74

When visually inspecting a completed single vee butt weld cap you would certainly assess: a)  b) c) d)

75

You notice a very “veed” ripple shape. This is most likely caused b y: a)  b) c) d)

76

Manual metal arc Metal inert gas Submerged arc welding Both A & C

Undercut principally caused by: a)  b) c) d)

79

Corrosion Fatigue life Overlap type defects All of the above

Slag inclusion would occur with: a)  b) c) d)

78

Poor consumable choice Welding position Excessive travel speed All of the above

“Toe blending” is important as it may affect: a)  b) c) d)

77

Cap height Toe blend Weld width A, B & C

Excessive amps Excessive volts Excessive travel speed All of the above

Undercut normally assessed by: a)  b) c) d)

Its depth Its length Its blending All of the above

 Page 14 of 32

80

A welding procedure is useful to: a)  b) c) d)

81

An essential variable may: a)  b) c) d)

82

The leg lengths The actual throat thickness The design throat thickness Both A & C

The planar defect is: a)  b) c) d)

84

Up to 5  2 –  2.5  5 –  10   None of the above

When visually inspecting a fillet weld, it would normally be “sized” by: a)  b) c) d)

83

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)

82

Give information to the welder Give information to the inspector Give “Confidence” to a product All of the above

Incomplete fusion defects Slag inclusion Incomplete penetration Both A & C

Penetrant and Magnetic particle inspection are mainly used to: a)  b) c) d)

Aid visual inspection Because application standard says so To confirm “visual uncertainties” All of the above

 Page 15 of 32

85

Defects outside of the limits specified in a standard should always be: a)  b) c) d)

86

MIG welding tends to be susceptible to lack of fusion problems. This is  because of: 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)

90

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)

89

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. Thses are: a)  b) c) d)

88

Repaired Reported to “a senior person” Assessed along with other defects 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 16 of 32

91

With reference to a root penetration bead, you could certainly assess: a)  b) c) d)

Root fusion and penetration Root concavity Burn-through All of the above

92

A fatigue failure characteristic by the appearance of the fracture surface. It would be: a) Rough and torn  b) “Cheveron” –  like c) Smooth d)  None of the above

93

“Stray arcing” may be regarded as a serious defect. This is because: a)  b) c) d)

94

Overlap in welds could be influenced by: a)  b) c) d)

95

Cracking Misalignment problems Inclusions All of the above

Macroscopic examination requires any specimen to be inspected: a)  b) c) d)

97

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)

96

It may reduce the thickness dimension of a component It may cause liquation cracks It may cause hard zones 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 17 of 32

98

Code of practice is: a)  b) c) d)

99

Movement of the arc by magnetic forces in-MMA welding is termed: a)  b) c) d)

100

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)

104

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)

103

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)

102

Arc deviation Arc misalignment Arc blow Arc eye

A metallurgical problem most associated with submerged arc welding is: a)  b) c) d)

101

A standard for workmanship only A set of rules for manufacturing a specific product Levels of acceptability of a weldment  None of the above

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)

E 6013 E 5133 E 7018 –  G Fleet weld 5  Page 18 of 32

105

Which of the following coating is associated with “Stove” welding; a)  b) c) d)

106

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)

107

3200 C 2300 C 5000 C  None of the above

A large grain structure in steels is said to produce: a)  b) c) d)

110

Fused Agglomerated Basic All of about the same resistance

The flame temperature of oxy/acetylene mixture gas is given as: a)  b) c) d)

109

100% CO 100% argon 80% argon 20% CO2 98% argon 2% oxygen

The type of SAW flux is more resistance to moisture absorption: a)  b) c) d)

108

Rutile Cellulosic Basic Oxidizing

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)

A large grain formation A reduction of in service temperature to sub zero levels Ferritic rather than austenitic steels All of the above

 Page 19 of 32

111

Repair welding is often more difficult than production due to: a)  b) c) d)

112

Hydrogen cracking in the weld metal is likely when: a)  b) c) d)

113

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)

116

Welder approval testing Welding equipment Welding procedure approval Consumables for submerged arc welding

Porosity is caused by: a)  b) c) d)

115

Carbon manganese steels Stainless steels Micro alloyed steels (HSLA) Low carbon steels

EN standard 288 would refer to which of the following: a)  b) c) d)

114

The material being ingrained with in-service contaminates Restricted access with the repair area The possible position of the weld Any of the above

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)

Lack of side wall fusion Surface undercut Incompletely filled groove Overlap

 Page 20 of 32

117

The process of tempering is often carried out to regain toughness after which of the following processes: a)  b) c) d)

118

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)

119

Lamellar tearing Solidification cracking Hydrogen cracking  None of the above

The use of cobalt as an isotope would generally be used on: a)  b) c) d)

122

Ultrasonic MPI Radiography Penetrants

Hot shortness term is used to indicate: a)  b) c) d)

121

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)

120

Annealing  Normalizing Hardening Stress relieving

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)

Re-qualification of the welding procedure Possible change in the weld‟s microstructure Possible change in t he mechanical properties All of the above

 Page 21 of 32

123

Weld symbol placed on a dotted line in accordance with ISO requirements means: a)  b) c) d)

124

A welding inspector‟s main attribute includes: a)  b) c) d)

125

A standard A “set of rules” for the manufacture of a product Related to welder and weld procedure approval All of the above

The correct term for cap height is: a)  b) c) d)

128

A bevel butt A J butt A “K” butt All of the above

Technically a code of practice is: a)  b) c) d)

127

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)

126

Weld on “arrow” side Weld on “other” side Weld on site Full penetration required

Reinforcement Cap profile height Excessive weld metal All of the above

A tensile test will assess a)  b) c) d)

Impact values Stress Strain Both a) & c)

 Page 22 of 32

129

The important point if high temperature steel is that: a)  b) c) d)

130

An austenitic stainless steel may suffer: a)  b) c) d)

131

Argon + Hydrogen Argon + Helium Argon + Nitrogen All of the above

When referring to MIG welding, the shielding gas could be: a)  b) c) d)

135

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)

134

Weld ability aspects Crack sensitivity aspects Typical mechanical properties All of the above

A basic electrode would normally: a)  b) c) d)

133

Weld decay Sensitization Solidification cracking All of the above

Carbon equivalent values are useful to determine: a)  b) c) d)

132

They can withstand creep failure They may suffer re-heat cracking problems They may suffer loss of toughness All of the above

Argon Argon + 1% Oxygen Argon + 20% CO2  None of the above

Submerged arc utilities: a)  b) c)

Deep penetration characteristic High deposition rate on DC+ Flat (P.A.) welding only  Page 23 of 32

136

Ultrasonic would be prefer over radiography due to: a)  b) c) d)

137

The most serious defects a)  b) c) d)

138

Must be applied to welds if a crack free weld is required1 Should never exceed 300 dg C 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)

141

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)

140

Planar Cracks Lack of fusion All of the above

The weldability of a material may be affected by: a)  b) c) d)

139

Ability to find more defects Lowest skill requirements Ability to detect laminations Both a) and c)

TIG MIG MAG  None of the above All f the above

Which form of NDT could be used on a fillet weld on aluminum? a)  b) c) d) e) f) g)

Dye penetrant testing Ultrasonic testing Radiography MPI a, b and c D only All of the above

 Page 24 of 32

142

Which of the following NDT methods would not detect sub-surface defects? a)  b) c) d) e)

143

Why have a high O.C.V. with MMA welding a)  b) c) d)

144

 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)

147

To adjust the voltage To adjust the amperage To convert A.C to D.C. To prevent arc strikes

Fish –  eyes, chevron cracks and fissures are: a)  b) c) d)

146

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)

145

MPI Dye penetrant testing Ultrasonic testing Radiography All of the above would detect sub-surface defects

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

What does pre heat prior to welding have an affect on: a)  b) c) d) e)

Hardenability Weldability Cooling rate All of the above  None of the above

 Page 25 of 32

148

The toes of the cap on a butt weld: a)  b) c) d)

149

Which of the following butt-weld preparations is generally most susceptible to „lack of side wall fusion‟ during MMA welding? 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)

153

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)

152

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)

151

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

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 26 of 32

154

Quality assurance: a)  b) c) d)

155

Which NDT method would never be use on a 6” aluminum pipe weld? a)  b) c) d)

156

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)

159

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)

158

Radiography Magnetic particle inspection Ultrasonic testing Dye penetrant testing

Why is hot –  pass so-called? a)  b) c) d)

157

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

Argon Xenon Carbon dioxide Helium

Why is welding is shielded? a)  b) c) d)

To eliminate hydrogen To retard the cooling rate of the weld To eliminate the atmosphere To ensure maximum heat input

 Page 27 of 32

160

The primary duty of welding inspector: a)  b) c) d)

161

Which of the following welding processes is most susceptible to lack of fusion? a)  b) c) d)

162

c) d) e)

Preferable to butt welds due to high strength Difficult to assess with Non Destructive Testing in comparison with butt (grove) welds Used only for „appearance‟ purposes Only feasible on steels All of the above

API stands for a)  b) c) d)

164

Submerged arc CO2 (metal active gas) Manual metal arc Tungsten inert gas

Fillet welds are a)  b)

163

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)

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)

Voltage Amperage Polarity  None of the above

 Page 28 of 32

165

Lap joints contain: a)  b) c) d)

166

Which arc welding process utilizes a non-consumable electrode? a)  b) c) d) e)

167

Basic Cellulosic Rutile  None of the above

What do you understand by the term „minimum interpass temperature” a)  b) c) d)

170

Must know how to interpret radiographs May be required to interpret radiographs on ce rtain contracts Should be able to weld Both b and c All of the above

Which electrodes are very susceptible to causing porosity in the deposited welds if long arc employed? a)  b) c) d)

169

MIG TIG MMA SAW All of the above

A welding Inspector: a)  b) c) d) e)

168

Fillet welds Corner joints Butt welds Single bevel butt welds

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 passes? a)  b) c) d)

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

 Page 29 of 32

171

What is the problem with „restraint‟ during welding? a)  b) c) d)

172

Which mechanical test (s) can b e used to make an assessment of surfacing  breaking defects? a)  b) c) d) e)

173

Plasticity Ductility Elasticity Malleability

Fluctuating load is: cyclic stresses, below the UTS on a weld component may lead to: a)  b) c) d)

176

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)

175

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)

174

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

Tensile failure Yield failure Fatigue failure Shear failure

Stress is equal to: a)  b) c) d)

Stress Load divided by cross –  sectional area Extension of gauge length divided by original gauge length Toughness

 Page 30 of 32

177

Strain is equal to: a)  b) c) d)

178

Stress can be measured in: a)  b) c) d)

179

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)

182

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)

181

 N/mm² PSI mm Both a and b

What is a crater pipe? a)  b) c) d)

180

Stress Load divide by cross –  sectional are Extension of gauge length divided by the original gauge length Toughness

With a machine called shadowgraph With a rule With a vernier caliper With a densitometry

Herringbone porosity is: a)  b) c) d) e)

A particular pattern of porosity Made up of wormholes Made up of piping All the above are correct  None of the above

 Page 31 of 32