Ans. Total Score = 123

1 c c 1.0 What is meant by the term minimum interpass temperature?a. Minimum post weld heat treatment temperatureb. Minimum stress relief temperaturec. The lowest temperature allowed during welding and between weld passesd. The lowest temperature to be used during pre-heat

1 c c 2.0 Which of the following standards gives guidance for the production of a WPQT?a. BS EN 22553b. BS EN 499c. BS EN 15614d. BS EN 287

1 c c 3.0 Which of the following radioactive terms is not associated with NDT?a. Gammab. Cobalt 60c. Thoriumd. Iridium 192

1 b b 4.0 A welder qualification test is used to verify:a. The compatibility between consumable and materialsb. The skill of the welderc. The manufacturing processd. The NDT procedures

0 c a 5.0 In arc welding processes, excess weld metal profile is most affected by:

a. Arc Lengthb. Open circuit voltagec. Amperaged. Root gap

1 c c 6.0 Which of the following hardness tests would be used by a test house to assess hardness for welding procedure approval in UK?a. Brinellb. Rockwellc. Vickersd. Ecotip

1 c c 7.0 Lamellar tearing has occurred in steel fabrication. Before welding could it have been detected by:a. Radiographyb. Dye penetrant inspectionc. It would not have found by any inspection methodd. Ultrasonic testing

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1 d d 8.0 The presence of iron sulphide in the weld metal is most likely to produce which of the following crack mechanisms, as the weld contracts?a. Hydrogen Induced Cold Crackingb. Re - heat crackingc. Lammellar tearingd. Solidification cracking

1 c c 9.0 SMAW welding equipment requires what type of output characteristic?a. Constant voltageb. Flatc. Constant currentd. Constant polarity

1 d d 10.0 Incomplete root penetration in a butt weld could be caused by:a. Excessive root face widthb. Excessive root gap sizec. Low current settingd. Both A & C

1 b b 11.0 According to BS EN 22553 the number 111 at the end of the dual weld symbol reference line would indicate?a. The welding procedure numberb. The welding process is manual metal arc weldingc. The welding process is TIGd. The type of welding electrode

1 b b 12.0 Which of the following defects is most likely to be caused by poor welding technique when using the MMA process?a. Hydrogen Induced Cold Crackingb. Crater cracksc. Plate laminationsd. Copper inclusions

1 c c 13.0 Which of the following parameters presents the greatest difficulty when monitoring MMA welding:a. Currentb. Travel speedc. Arc lengthd. Interpass temperature

0 c b 14.0 Which of the following abbreviations is the odd one out?a. GTAWb. MMAc. SMAWd. GMAW

1 d d 15.0 An alteration of an essential variable on a WPQR may:

a. Change the properties of the weldb. Affect visual acceptancec. Require re - approvald. All of the above

1 d d 16.0 Which of the following would be typical arc energy for a single pass MAG weld?a. 1.2 J/mmb. 0.12 kJ/mmc. 12 kJ/mmd. 1.2 kJ/mm

1 a a 17.0 The output characteristic for a TIG/MMA power source would be?a. Constant currentb. Constant polarityc. Constant voltaged. Constant pulsing

1 d d 18.0 Under most conditions which of the following welding positions will deposit the most weld metal?a. PGb. HL045c. PFd. PA

1 b b 19.0 Which of the following are correct dimensions for the vee notch in a charpy specimen?a. Depth 2.5mm, included angle 40°, root radius 0.25mmb. Depth 2mm, included angle 45°, root radius 0.25mmc. Depth 2mm, included angle 22.5°, root radius 0.35mmd. Depth 2.5mm, included angle 22.5°, root radius 0.20mm

0 b c 20.0 Which of the following radioactive isotopes is most commonly used for the gamma radiography of welds?a. Thorium 90b. Cobalt 60c. Iridium 192d. Ytterbium 169

1 c c 21.0 For a given voltage and current setting on a constant output power source, when the arc length is shortened:a. The current will decrease the voltage will increaseb. The travel speed will increase the current will decreasec. The current will increase the voltage will decreased. The current will increase the travel speed will decrease

1 c c 22.0 The throat thickness of a mitre fillet weld with 20mm equal leg lengths will be:a. 25mm

b. 17mmc. 14mmd. It cannot be determined from the information given

1 c c 23.0 Which submerged arc welding flux may be described as powdery or ball like?a. Basicb. Fusedc. Agglomeratedd. Acidic

1 b b 24.0 Welding a single V butt weld with laminations in the side wall may cause :a. Lamellar tearingb. Solidification crackingc. Matensited. Undercut

1 d d 25.0 According to BS EN 22553, what would an elongated Z through the dual reference line on the right hand side of fillet weld symbols indicate?a. Throat thicknessb. The weld toes must be dressedc. Leg lengthd. Intermittent welds that are staggered.

1 c c 26.0a. Leg Lengthb. Nominal depth of penetrationc. Design throat thicknessd. All of the above

1 c c 27.0 Which of the following welding processes uses a constant voltage output characteristic:a. Sub-arc<1000amps, MMA, electroslagb. TIG, sub-arc>1000amps, electroslagc. Sub-arc<1000amps, MIG/MAG, electroslagd. MIG/MAG, sub-arc>1000amps, electroslag

1 d d 28.0 The back step method of welding could be used to control;a. Weld profileb. Penetrationc. Undercutd. Distortion

0 b a 29.0 A fillet weld with equal leg lengths of 15mm and a throat thickness measurement of 9 mm would have what type of profile?a. Concaveb. Convex

According to BSEN 22553 the letter a preceding the symbol for a fillet weld would indicate that what?

c. Mitred. None of the above

1 c c 30.0 Which of the following BSEN standards provides guidance on the visual examination of fusion welds?a. BS EN 910b. BS EN 719c. BS EN 970d. BS EN 499

1 b b 31.0 Pre-heating prior to welding on high tensile strength materials applies to which of the following?a. Only on joints over 25mm thicknessb. Production welding and tack weldingc. Production welding onlyd. Pre-heat is not required if PWHT is to be carried out

1 c c 32.0 Which of the following may increase the risk of HAZ cracking when welding thick section carbon manganesea. Low moisture content in the electrode coveringb. Slow cooling after weldingc. Use of low heat inputd. Use of a steel with low Ceq%

0 c a 33.0 In which of the following positions would you expect to find the highest heat input on a pipe butt weld made with the pipe axis in the horizontal position, weld axis in the vertical position?a. PAb. PBc. PFd. PG

1 d d 34.0 A cellulosic, MMA electrode could be identified from the:a. Colour of the flux coveringb. Length of the electrodec. Trade name of the electroded. AWS/BSEN classification

1 d d 35.0 Manual metal are electrodes can be grouped into three main types. What are they?a. Fused, cellulosic & basicb. Neutral, Cellulosic & basicc. Agglomerated, Cellulosic & Rutiled. Rutile, basic & Cellulosic

1 c c 36.0 The term back step welding refers to what?a. Welding positionb. Welding schedulec. Welding run sequence

d. Welding deposition rate

1 c c 37.0 Which of the following is not a fusion welding process?a. Electro-slag weldingb. Oxy-gas weldingc. Forge weldingd. TIG welding

1 c c 38.0 Hydrogen cracking is most likely to occur when welding:a. Carbon manganese steelsb. Stainless steelsc. High strength low alloy steelsd. Low carbon steels

1 c c 39.0 A welder qualified in the PG position, to ISO 6947, would normally be qualified for welding;a. All Pipe diametersb. All welding positionsc. PG onlyd. Any pipe/ plate thickness

1 b b 40.0 What action should the welding inspector take if arc strikes are found adjacent to the weld on a high tensile strength material(the specification does not reference arc strikes)a. Have the weld and adjacent parent material removedb. Report the presence of arc strikes.c. Accept the weldd. Have the welder re-qualified

0 a d 41.0 Complete the sentence to make a true statement

a. …..must always be dressed to reduce stress raisersb. …..must always overlap onto the external surface of the plate or pipe by at least 1.5mm"c. …..must always be checked by NDT"d. …..none of the above can be selected as the specification requirements are unknown

1 c c 42.0 The shear strength of a fillet weld is governed by:a. The leg lengthb. The weld facec. The throat thicknessd. The weld zone

1 c c 43.0 What is lamellar tearing?a. A product defect caused during steel manufactureb. A hot crack mechanism associated with joint fit upc. A crack mechanism which occurs in the parent material due to welding stress acting in the short transverse direction of the parent materiald. A type of crack associated with welds which are subjected to cyclic loading

1 a a 44.0 How would a fillet weld with a leg length 7mm be indicate to BS EN 22553?a. z7b. a7c. s7d. 7z

0 d b 45.0 A large grain structure in steel could producea. Low ductility valuesb. Low fracture toughness valuesc. High fracture toughness valuesd. High tensile strength

1 a a 46.0 What is meant by the term specification?a. A document that prescribes the requirements with which the product or service has to conformb. A set of guidelines recommending practices and proceduresc. A general term given to all normative documentsd. A written description of the exact steps to be followed in manufacturing a product

1 d d 47.0 Incomplete root fusion could certainly be caused by:a. Linear misalignmentb. Incorrect electrode tilt anglec. Differing root face widthsd. All of the above

1 d d 48.0 Which of the following statements is true?a. Electrode d.c. positive produces a deep narrow weld pool b. Rutile means calcium carbonate c. Porosity is always repairedd. D.C. electrode positive is used for MAG welding steel

1 c c 49.0 According to AWS A5.1 which of the following MMA/SMAW electrodes would be classified as rutile?a. E 6010b. E 7018c. E 6013d. E 9011

1 b b 50.0 A metallurgical problem most associated with submerged arc welding is:a. Hydrogen cracking in the HAZb. Solidification cracking in the weld metalc. Lamellar tearing in the weld metald. Hydrogen cracking in the weld metal

1 c c 51.0 A crater crack may also be described as:a. Cold crackb. Tearingc. Star crackd. Fatigue crack

1 a a 52.0 When welding low carbon steels with the GMAW process on dip transfer, one purpose of the inductance control is to reduce:a. Spatterb. Lack of fusionc. Porosityd. Cold lap

0 d c 53.0 Why is the arc shielded when using an arc welding process?a. To eliminate hydrogen from the region of the arcb. To retard the cooling rate of the weldc. To exclude the atmosphere from the region of the arcd. All of the above

1 b b 54.0 A submerged arc flux described as flacky or sharp would be classed as?a. Agglomeratedb. Fusedc. Basicd. Acidic

1 d d 55.0 When referring to fully austenitic stainless steels which one of the following statements would be correct?a. It is magnetic under certain conditionsb. It has a poor toughness at low temperaturesc. It has a low coefficient of thermal expansion and a high coefficient of thermal conductivityd. It has a high coefficient of thermal expansion and a low coefficient of thermal conductivity

1 c c 56.0 Which of the following would act as de-oxidisers in a tertiary de-oxidised MAG welding wire?a. Manganese, silicon, copperb. Silicon, nickel, aluminumc. Manganese, silicon, aluminumd. Manganese, molybdenum, nickel

1 a a 57.0 Which of the following butt weld preparations is usually susceptible to lack of side wall fusion during manual metal arc welding process?a. A double U butt weld.b. A single V butt weld.c. A double V butt weld.d. Lack of side wall fusion is not a problem with MMA welding

1 d d 58.0 MMA electrodes that show a light coating of rust on the core wire, should;a. Be re-baked according to the manufacturer's instructionsb. Be cleaned with solventc. Have all rust removed by abrasives before used. Be quarantined for further inspection

1 a a 59.0 During TIG welding the arc voltage is controlled by:a. The welderb. The flat output characteristic of the power sourcec. The polarity of the electroded. The constant voltage control

1 a a 60.0 What is another term for suckbuck?a. Concave rootb. Root pipingc. Incomplete filled grooved. Slag inclusions between the root run and hot pass

1 b b 61.0 What is the Heat Affected Zone?a. It is the melted part of the plate materialb. It is the area immediately adjacent to the weld metal which has undergone a micro structural changec. It is the weld area plus the parent material which has undergone a micro structural changed. It is the area in the weld zone with the lowest tensile strength

0 b d 62.0 Which of the following best describes the elastic limit?a. The resistance to fracture under impact loadingb. The maximum stress a material can be subjected to without permanent deformationc. The point at which the material failsd. The ability of a material to stretch and become permanently deformed without breaking or cracking

1 a a 63.0 Defects out side the limits specified by the standard should always be:a. Reported to a senior personb. Repaired as soon as possiblec. Radiographed when practicabled. All of the above

1 d d 64.0 When hydrogen control is specified for MMA welding, what type of electrode would normally be used?a. Cellulosicb. Rutilec. Acidicd. Basic

1 d d 65.0 Why is pre-heat sometimes carried out on steels?

a. To remove moisture from the weld preparationb. To retard the cooling rate of the weldc. To aid fusion between weld metal and parent materiald. All of the above

1 d d 66.0 Stray arcing may be considered to be serious defect because:a. It may reduce the thickness of the componentb. It may cause liquation crackingc. It may cause hard areasd. All of the above

1 b b 67.0 Which of the following is not a type of crack?a. Fissureb. Fish eyec. Lamellar teard. Hot tear

1 b b 68.0 What is the Heat Affected Zone (HAZ)?a. It is the melted portion of the parent materialb. It is the area adjacent to the weld metal which has undergone micro structural changec. It is the weld area plus the parent material which has undergone micro structural changed. It is the area of the lowest tensile strength in the weld region

1 c c 69.0 What is meant by the term Specification?a. A written description of all essential parameters and precautions to be observedb. Document established by consensus and approved by a recognized bodyc. A document that prescribes the requirements with which the product or service has to conformd. A written description of the precise steps to be followed

0 d b 70.0 When considering lamellar tearing what is buttering run?a. A weld deposit used to increase the throat thickness size of a fillet weldb. A weld deposit which may be used to take up contraction stressesc. A weld deposit used to increase the UTS value of the parent materiald. A weld deposit used to locally heat treat preceding weld runs

1 d d 71.0 Pre-heat prior to welding:a. Must always be carried out on steelsb. Need not be carried out if PWHT is to follow weldingc. Must always be carried out using gas flamesd. None of the above

1 d d 72.0 A short transverse tensile test (STRA test) will give what?a. The stress/strain characteristics of the joint

b. The tensile strength of the weldc. An indication of susceptibility to hydrogen crackingd. An indication of the material susceptibility to lamellar tearing

1 a a 73.0 Which of the following statements regarding carbon steels is false?a. High heat input results in high hardnessb. High heat may result in large grainsc. Loss of toughness may result from weavingd. Toughness may be restored by normalizing

1 b b 74.0 Which of the following best describes the duty of a welding inspector?a. To carry out inspection and NDT in order to find weld defects.b. To attempt to ensure that all welding and any associated actions are carried out in accordance with agreed specification.c. To carry out welding inspection and radiographic interpretation in accordance with the agreed procedures for the work being carried out.d. To ensure that all welds which undergo inspection are free of defects.

1 b b 75.0 The main causes of solidification cracking are?a. Phosphor, joint geometry and tensile stressb. Sulphur, joint geometry and tensile stressc. Hydrogen, joint geometry and tensile stressd. Laminations, poor through thickness ductility and tensile stress

1 d d 76.0 What could Carbon Equivalent Values (CEV) be used for?a. Assses the risk of lamellar tearingb. Estimates the need for PWHTc. Calculate HAZ toughness.d. Determine the preheat to be used

1 b b 77.0 Which of the following gas mixtures would you expect to use to give good weld profile and penetration when MAG welding carbon steels?a. 100% Argonb. 80% Argon + 20% C02c. 98% Helium + 2% C02d. 100% C02

1 d d 78.0 An electrode identified as E 6013 would be classified to which of the following standards/a. BSEN 499b. AWS A5.5c. BSEN 440d. AWS A5.1

1 a a 79.0 Ultra sonic testing is of advantage in detecting which of the following weld imperfections over other NDT methods:a. Lack of side wall fusionb. Surface undercut

c. Incomplete filled grooved. Cold lap

1 c c 80.0 For cross-country pipelines, which type of MMA electrode would require the deposition of hot pass technique to reduce the risk of cracking in the root bead?a. Basicb. Iron powderc. Cellulosed. Rutile

0 a c 81.0 According to BS 499 - 1 what is meant by the term weld junction?a. The area containing the weld metal and HAZb. The weld metal and parent metalc. The boundary between the fusion zone and the HAZd. The area which undergoes metallurgical change

1 c c 82.0 According to AWS 2.4 a weld symbol shown below the reference line would indicate;a. A weld made on the other side of the jointb. A weld made on the root side of the jointc. A weld made on the arrow side of the jointd. None of above; the symbol should be on the dashed line

1 a a 83.0 Which of the following mechanical test(s) gives a quantitative measurement of ductility?a. Tensile testb. Bend testc. Charpy testd. Nick break test

1 d d 84.0 Movement of the arc by magnetic forces is termed?a. Arc deviationb. Arc eyec. Arc striked. Arc blow

1 a a 85.0 The leg length of a mitre fillet weld with an 8 mm throat thickness will be:

a. 11.5 mmb. 10 mmc. 12 mmd. 10.5 mm

1 b b 86.0 The use of a degreasing solvent, for cleaning the joint prior to welding, may be classed as an unsafe practice because;a. The welds may contain porosityb. Harmful fumes may be given offc. Traces from the solvent may cause irregular arcing

d. Its use could lead to cracking in the HAZ

0 d b 87.0 Which of the following butt welds would be considered the most difficult to weld?a. Double V butt welded both sidesb. Single V buttc. Single U butt with backingd. Assymetrical double V butt welded both sides

1 b b 88.0 Which of the following would not be classed as a weld with backing?a. A single-V weld with a removable backing stripb. A single-V weld with a back purgec. A single-V weld with a permanent backing stripd. A double-V weld with a back gouged root

1 a a 89.0 When monitoring welding current using a tongue test ammeter it is essential that it is placed around the welding cable……a. As close as practical to the arcb. At a portion that depends on the welding processc. As close as practical to the power sourced. At a position convenient to the welder.

1 c c 90.0 In order to calculate arc energy, it is necessary to know what?a. Amperage and voltageb. Current, voltage and weave widthc. Amperage, voltage and travel speedd. Wire feed speed, voltage and burn off rate

1 a a 91.0 In UK, practice, BS EN 22553 specifies that the minimum drawing dimension for a fillet weld is the :a. Leg Lengthb. Actual throat thicknessc. Weld Widthd. Depth of penetration

1 b b 92.0 How many temperature indicating crayons would be required to ensure that a pre-heat temperature was within a specified range?a. Oneb. Twoc. Threed. As many as possible

0 a d 93.0 Which of the following would relate to the term planar defect?a. A laminationb. A serious defect which could lead to failure of the productc. An elongated slag inclusiond. Both A & B

1 b b 94.0 A fillet weld has a design throat thickness of 6mm. What is the minimum leg length required?a. 4.2mmb. 8.5mmc. 8.2mmd. It is impossible to determine the size from the information given

1 c c 95.0 Which of the following alloys is non-magnetic ?a. 4% Chromium molybdenumb. 12% Chromiumc. Austenitic stainless steelsd. 9% Nickel steel

1 c c 96.0 Shinkage that takes place in line (parallel) to the weld line of the joint is termed?a. Transverseb. Hoopc. Longitudinald. Bowing

1 b b 97.0 In a martensitic grain structure which of the following mechanical properties would be more likely to increase?a. Ductilityb. Hardnessc. Toughnessd. All of the above

1 d d 98.0 What is crater pipe?a. Another term for concave rootb. Another term for a burn throughc. A type of gas pore found in the weld craterd. A shrinkage defect which may be found in a weld crater

1 b b 99.0 Which of the following defects would not normally be detected by radiography?a. 2 mm by 4 mm long centerline crack in the weld rootb. 200 mm long laminationc. 10 mm deep lack of side wall fusiond. A 1.5 mm diameter gas pore

1 a a 100.0 Which of the following will be the most affected when varying the arc length using the MMA welding process?a. Voltageb. Amperagec. Polarityd. Travel speed

1 c c 101.0 A Constant Voltage output characteristic would be required for which of the following welding process?a. MMA / SMAWb. TIG / GTAWc. MIG / MAG / GMAWd. TAGS

1 c c 102.0 The BS EN code for welder approval is: a. BS EN 4872b. BS EN 499c. BS EN 287d. BS EN 719

1 b b 103.0 The direction of shrinkage in a welded joint are;a. Transverse, short transverse and linearb. Longitudinal, transverse and short transversec. Angular, diagonal and transgranulard. Transverse, diagonal and torsional

1 c c 104.0 BSEN 15614 refers to what?a. Welder approval testingb. Welding equipment validationc. Welding procedure qualificationd. Weld symbols on fabrication drawings

1 b b 105.0 A common gas/gas mixture used for MIG welding nickel alloys to combine good levels of penetration with good arc stability would be:a. 100% C02b. 100% Argonc. 80% Argon + 20 C02d. 98% Argon + 2 O2

1 b b 106.0 What would be a typical welding defect associated with the TIG welding process?a. Slag inclusionsb. Tungsten inclusionsc. Hydrogen crackingd. Solidification cracking

1 a a 107.0 A typical arc energy value for a MAGS weld run would be?a. 1.2 kJ/mmb. 12 kJc. 1.2 J/mmd. 120 kJ/mm

0 a b 108.0 An inverter.......:a. Changes ac to dcb. Changes dc to ac at a higher frequencyc. Changes mains ac to ac suitable for weldingd. Changes welding polarity

1 c c 109.0 What is leg length of a fillet weld?a. The distance from the toe to the face.b. The distance from the root to the face center.c. The distance from toe to root.d. The distance from the toe to toe.

1 d d 110.0 What is the possible result if the amperage is too low during the welding of the root pass using the MMA welding process?a. Incomplete root penetrationb. Lack of root fusionc. Electrode sticking/stumbled. All of the above

1 b b 111.0 Which welding process would not be suitable for welding carbon steel?a. MMAb. MIGc. SAWd. TIG

0 b a 112.0 Concave root may be caused by which of the following:a. Excessive back purge pressure of excessive root grindingb. Excessive back purge pressure and entrapped gasc. Excessive heat inputs or too small a root faced. Excessive heat inputs and high travel speeds

1 b b 113.0 What is typical carbon equivalent in carbon manganese steels?a. 4%b. 0.33%c. 0.54%d. 0.12%

0 b c 114.0 What is the ratio between the leg length and the throat thickness on a mitre fillet weld with equal lengths?a. 1:01b. 2:01c. 1.414: 1d. Depends on the fillet weld dimensions and joint fit up.

1 c c 115.0 What would be a typical diameter range for basic electrodes for all positional MMA welding?

a. 2.5 - 8 mmb. 0.8 - 1.2 mmc. 2.5 - 4 mmd. Size does not matter

0 d b 116.0 On an electrode classified to BSEN 499 as E 42 3 B, the figure 3 would represent:a. Strength & elongation propertiesb. Impact propertiesc. Chemical compositiond. Weld metal recovery and type of current

1 d d 117.0 The main reason for using back purge welding 18-8 stainless steel with the TIG welding process is toa. Control root penetrationb. Prevent root bead porosityc. Improve positional weldingd. Prevent oxidation of the weld root

0 c a 118.0 The area of joining between parent metal and weld metal is termeda. The fusion zoneb. The HAZc. The weld zoned. The parent material

1 c c 119.0 What are the four criteria necessary to produce HICC?a. Hydrogen , moisture, martensite, heatb. Hydrogen, poor weld profile, temperature above 200° C and slow coolingc. Hydrogen, a grain structure susceptible to cracking , stress and a temperature below 200°Cd. Hydrogen, weld defects, pearlite and high input

0 b a 120.0 What is the maximum allowable HI/LO for 8 mm thick material if the following is applied; Linear misalignment is permissible if the maximum dimension does not exceed 10 % of t up to a maximum of 2 mm/

a. 0.8 mmb. 2 mmc. 8.8 mmd. It can not be sentenced as an other side is shown by the symbol

1 c c 121.0 Autogenous welding refers to what?a. A mechanized welding processb. An automated welding processc. A means of welding without a filler wired. A manual welding process

1 b b 122.0 The term duty cycle refers to what?a. The shift pattern of inspection staff

b. A safety rating giving output capability of welding equipmentc. A safety rating giving heat input capability of welding equipmentd. Component life expectancy

0 c d 123.0 Which of the following is true regarding hydrogen cracking?a. It is type of hot crackb. It is most commonly found in ductile materialsc. It is only occurs in the HAZd. It is the most common type of crack encountered in steel weldments

0 a b 124.0 Which of the following best describes a semi-automatic welding process?a. The welder is responsible for the arc gap and travel speedb. The welder is responsible for travel speed onlyc. The power source controls both arc gap and travel speed but under constant supervisiond. The power source controls both travel speed and arc gap

0 a c 125.0 The heat input during a fusion welding process:a. Does not affect the grain structure of the material unless it is very highb. Must be high as possible to avoid lack of fusionc. Affects the width and metallurgy of the HAZd. Must be very low to avoid grain growth

1 a a 126.0 On an electrode classified to BS EN 499 as E42 3B the 42 would indicate?a. 420 N/mm2 min yield strengthb. 42 Joules @ -30°Cc. 42 ksi tensile strengthd. 42 N/mm2 max tensile strength

0 d c 127.0 Which of the following would be considered to be the duty of a welding inspector?a. Supervision of weldersb. Writing proceduresc. Witness welder qualification testd. All of the above

1 d d 128.0 The steel composition in structural steel is changed from 0.15% carbon 0.6% manganese to 0.2 carbon 1.2% manganese. What might this influence?a. Decrease in tensile strengthb. Increase in ductilityc. Decrease in hardnessd. Cracking in the weld area

1 b b 129.0 A flux for SAW is described as sharp of glassy in appearance. What type of flux could this be?a. Basicb. Fused

c. Acidicd. Alkaline

1 c c 130.0 A duty not normally undertaken by a welding inspector is to:a. Check the condition of the consumablesb. Check the bevel angle for damagec. Measure residual stressd. Measure pre-heat temperature

1 c c 131.0 What is meant by the term CODE OF PRACTICE?a. A document that provides guidance on auditingb. A checklistc. A documents which recommends practices and proceduresd. A standard for standardization

0 b a 132.0 Lap joints contain:a. Fillet weldsb. Corner jointsc. Butt weldsd. Single bevel butt welds

1 a a 133.0 According to BSEN 22553 a weld on the other side is shown by the symbol?a. On the dashed identification lineb. Below the reference linec. On the solid lined. Above the reference line

1 c c 134.0 Which of the following type of bend test would best show lack of inter run fusion on a 25 mm thick carbon steel butt weld?a. Root bendb. Face bendc. Side bendd. 5 D bend

1 c c 135.0 When calculating pre-heat requirements what factors need to be considered?a. Heat input, material thickness and rate of coolingb. Travel speed, heat input and carbon equivalentc. Heat input, carbon equivalent and material thicknessd. Travel speed, rate of cooling and welding position

1 a a 136.0 Cold lap is another term for:a. Lack of fusion at the toes of excess weld metalb. Undercut at the toe of a weldc. Lack of root penetration

d. Incomplete filled groove

1 b b 137.0 Which of the following is the correct heat input for a MAG weld if the values recorded were; 280 Amps, 26 volts, travel speed 310mm/min.(Thermal efficiency for MAG welding = 0.8)a. 1.4 kJ/mmb. 1.12 kJ/mmc. 11 kJ/mmd. 1.12 J/mm

1 d d 138.0 Autogenous welding means?a. Fully automatedb. Fusion welding with filler wirec. Fully mechanizedd. Fusion welding without filler wire

1 c c 139.0 When MIG welding aluminum alloys in the overhead position which current type would normally be used?a. A.C.b. D.C. negativec. D.C. positived. Drooping

0 c d 140.0 When visually inspecting the root of a single V butt weld with the external excess weld metal removed, root concavity of 0.5mm depth is identified. The application standard contains the following statementRoot concavity shall be acceptable provided that the density of the radiographic images does not exceed that of the parent materialWhich if the following would be correct?a. The must be radiographedb. Sentencing of the radiograph could only be carried out by a qualified radiograph interpreter.c. The weld is acceptable, there is no radiograph to viewd. The weld should be rejected

0 d c 141.0 Which of the following is true for none planar defects found in a weld?a. They are always acceptableb. If found breaking the surface, removable of the entire weld is necessaryc. They are not usually as significant as planar defectsd. They can only be detected by radiography

1 c c 142.0 MIG/MAG welding using Dip Transfer mode is susceptible to:a. Solidification crackingb. Slag inclusionsc. Lack of side wall fusiond. Hydrogen cracking

1 b b 143.0 Is it permissible to allow a single V butt weld to cool down between passes?a. It depends on the welderb. It depends on the specification/procedurec. It depends on the welding inspectord. No, all welds should be completed before being allowed to cool

1 a a 144.0 Which of the following MMA electrode types would be associated with the stove welding technique?a. Cellulosicb. Rutilec. Agglomeratedd. Basic

1 b b 145.0 The pressure of iron sulphide in weld metal is most likely to produce which of the following crack mechanism as the contracts after welding:a. Hydrogen crackingb. Solidification crackingc. Lamellar tearing d. Re heat cracking

1 b b 146.0 What is the throat thickness of a mitre fillet weld equal leg lengths?a. The distance from the toe to the face.b. The distance from the root to the face center.c. The distance from the root to the toe.d. The distance from the toe to toe.

1 b b 147.0 During MIG/MAG welding the arc length is most likely to be affected by:a. The wire diameterb. The current return connectionsc. The gas flow rated. The torch to work angle

1 c c 148.0a. Tensile testingb. Fillet fracture testingc. Impact toughness testingd. The electrical characteristic of a power source

0 b a 149.0 Which of the following mechanical properties of a weld made on C-Mn steel is most affected, if the heat input per unit length of weld is excessively high:a. Tensile strengthb. Toughnessc. Ductilityd. Elongation

1 c c 150.0 Which of the following welding processes would give the highest heat input when using typical parameters?a. Manual metal arc weldingb. Shielded metal arc weldingc. Submerged arc weldingd. Tungsten inert gas welding

The term Transition Temperature is associated with;

Which of the following hardness tests would be used by a test house to assess hardness for welding procedure approval in UK?

Lamellar tearing has occurred in steel fabrication. Before welding could it have been detected by:

Check and Show Ans.

The presence of iron sulphide in the weld metal is most likely to produce which of the following crack mechanisms, as the weld contracts?

According to BS EN 22553 the number 111 at the end of the dual weld symbol reference line would indicate?

Which of the following defects is most likely to be caused by poor welding technique when using the MMA process?

Which of the following parameters presents the greatest difficulty when monitoring MMA welding:

Under most conditions which of the following welding positions will deposit the most weld metal?

Which of the following are correct dimensions for the vee notch in a charpy specimen?

Which of the following radioactive isotopes is most commonly used for the gamma radiography of welds?

For a given voltage and current setting on a constant output power source, when the arc length is shortened:

According to BS EN 22553, what would an elongated Z through the dual reference line on the right hand side of fillet weld symbols indicate?

Which of the following welding processes uses a constant voltage output characteristic:

A fillet weld with equal leg lengths of 15mm and a throat thickness measurement of 9 mm would have what type of profile?

preceding the symbol for a fillet weld would indicate that what?

Which of the following BSEN standards provides guidance on the visual examination of fusion welds?

Pre-heating prior to welding on high tensile strength materials applies to which of the following?

Which of the following may increase the risk of HAZ cracking when welding thick section carbon manganese

In which of the following positions would you expect to find the highest heat input on a pipe butt weld made with the pipe axis in the horizontal position, weld axis in the vertical position?

A welder qualified in the PG position, to ISO 6947, would normally be qualified for welding;

What action should the welding inspector take if arc strikes are found adjacent to the weld on a high tensile strength material(the specification does not reference arc strikes)

…..must always overlap onto the external surface of the plate or pipe by at least 1.5mm"

…..none of the above can be selected as the specification requirements are unknown

A crack mechanism which occurs in the parent material due to welding stress acting in the short transverse direction of the parent material

A document that prescribes the requirements with which the product or service has to conform

A written description of the exact steps to be followed in manufacturing a product

According to AWS A5.1 which of the following MMA/SMAW electrodes would be classified as rutile?

When welding low carbon steels with the GMAW process on dip transfer, one purpose of the inductance control is to reduce:

When referring to fully austenitic stainless steels which one of the following statements would be correct?

It has a low coefficient of thermal expansion and a high coefficient of thermal conductivityIt has a high coefficient of thermal expansion and a low coefficient of thermal conductivity

Which of the following would act as de-oxidisers in a tertiary de-oxidised MAG welding wire?

Which of the following butt weld preparations is usually susceptible to lack of side wall fusion during manual metal arc welding process?

It is the area immediately adjacent to the weld metal which has undergone a micro structural changeIt is the weld area plus the parent material which has undergone a micro structural change

The maximum stress a material can be subjected to without permanent deformation

The ability of a material to stretch and become permanently deformed without breaking or cracking

When hydrogen control is specified for MMA welding, what type of electrode would normally be used?

It is the area adjacent to the weld metal which has undergone micro structural changeIt is the weld area plus the parent material which has undergone micro structural change

A written description of all essential parameters and precautions to be observed

A document that prescribes the requirements with which the product or service has to conform

To attempt to ensure that all welding and any associated actions are carried out in accordance with agreed specification.To carry out welding inspection and radiographic interpretation in accordance with the agreed procedures for the work being carried out.

Which of the following gas mixtures would you expect to use to give good weld profile and penetration when MAG welding carbon steels?

An electrode identified as E 6013 would be classified to which of the following standards/

Ultra sonic testing is of advantage in detecting which of the following weld imperfections over other NDT methods:

For cross-country pipelines, which type of MMA electrode would require the deposition of hot pass technique to reduce the risk of cracking in the root bead?

According to AWS 2.4 a weld symbol shown below the reference line would indicate;

Which of the following mechanical test(s) gives a quantitative measurement of ductility?

The use of a degreasing solvent, for cleaning the joint prior to welding, may be classed as an unsafe practice because;

When monitoring welding current using a tongue test ammeter it is essential that it is placed around the welding cable……

In UK, practice, BS EN 22553 specifies that the minimum drawing dimension for a fillet weld is the :

How many temperature indicating crayons would be required to ensure that a pre-heat temperature was within a specified range?

A fillet weld has a design throat thickness of 6mm. What is the minimum leg length required?

In a martensitic grain structure which of the following mechanical properties would be more likely to increase?

Which of the following will be the most affected when varying the arc length using the MMA welding process?

A Constant Voltage output characteristic would be required for which of the following welding process?

A common gas/gas mixture used for MIG welding nickel alloys to combine good levels of penetration with good arc stability would be:

What is the possible result if the amperage is too low during the welding of the root pass using the MMA welding process?

What is the ratio between the leg length and the throat thickness on a mitre fillet weld with equal lengths?

What would be a typical diameter range for basic electrodes for all positional MMA welding?

The main reason for using back purge welding 18-8 stainless steel with the TIG welding process is to

Hydrogen, a grain structure susceptible to cracking , stress and a temperature below 200°C

What is the maximum allowable HI/LO for 8 mm thick material if the following is applied; Linear misalignment is permissible if the maximum dimension does not exceed 10 % of t up to a maximum of 2 mm/

The power source controls both arc gap and travel speed but under constant supervision

The steel composition in structural steel is changed from 0.15% carbon 0.6% manganese to 0.2 carbon 1.2% manganese. What might this influence?

A flux for SAW is described as sharp of glassy in appearance. What type of flux could this be?

Which of the following type of bend test would best show lack of inter run fusion on a 25 mm thick carbon steel butt weld?

Which of the following is the correct heat input for a MAG weld if the values recorded were; 280 Amps, 26 volts, travel speed 310mm/min.(Thermal efficiency for MAG welding = 0.8)

When MIG welding aluminum alloys in the overhead position which current type would normally be used?

When visually inspecting the root of a single V butt weld with the external excess weld metal removed, root concavity of 0.5mm depth is identified. The application standard contains the following statementRoot concavity shall be acceptable provided that the density of the radiographic images does not exceed that of the parent material

Sentencing of the radiograph could only be carried out by a qualified radiograph interpreter.

Which of the following MMA electrode types would be associated with the stove welding technique?

The pressure of iron sulphide in weld metal is most likely to produce which of the following crack mechanism as the contracts after welding:

Which of the following mechanical properties of a weld made on C-Mn steel is most affected, if the heat input per unit length of weld is excessively high:

Which of the following welding processes would give the highest heat input when using typical parameters?

What is the maximum allowable HI/LO for 8 mm thick material if the following is applied; Linear misalignment is permissible if the maximum dimension does not exceed 10 % of t up to a maximum of 2 mm/

When visually inspecting the root of a single V butt weld with the external excess weld metal removed, root concavity of 0.5mm depth is identified. The application standard contains the following statement

Answer key

1.0 c 26.0 c 51.0 c 76.0 d 101.0 c 126.0 a2.0 c 27.0 c 52.0 a 77.0 b 102.0 c 127.0 c3.0 c 28.0 d 53.0 c 78.0 d 103.0 b 128.0 d4.0 b 29.0 a 54.0 b 79.0 a 104.0 c 129.0 b5.0 a 30.0 c 55.0 d 80.0 c 105.0 b 130.0 c6.0 c 31.0 b 56.0 c 81.0 c 106.0 b 131.0 c7.0 c 32.0 c 57.0 a 82.0 c 107.0 a 132.0 a8.0 d 33.0 a 58.0 d 83.0 a 108.0 b 133.0 a9.0 c 34.0 d 59.0 a 84.0 d 109.0 c 134.0 c

10.0 d 35.0 d 60.0 a 85.0 a 110.0 d 135.0 c11.0 b 36.0 c 61.0 b 86.0 b 111.0 b 136.0 a12.0 b 37.0 c 62.0 d 87.0 b 112.0 a 137.0 b13.0 c 38.0 c 63.0 a 88.0 b 113.0 b 138.0 d14.0 b 39.0 c 64.0 d 89.0 a 114.0 c 139.0 c15.0 d 40.0 b 65.0 d 90.0 c 115.0 c 140.0 d16.0 d 41.0 d 66.0 d 91.0 a 116.0 b 141.0 c17.0 a 42.0 c 67.0 b 92.0 b 117.0 d 142.0 c18.0 d 43.0 c 68.0 b 93.0 d 118.0 a 143.0 b19.0 b 44.0 a 69.0 c 94.0 b 119.0 c 144.0 a20.0 c 45.0 b 70.0 b 95.0 c 120.0 a 145.0 b21.0 c 46.0 a 71.0 d 96.0 c 121.0 c 146.0 b22.0 c 47.0 d 72.0 d 97.0 b 122.0 b 147.0 b23.0 c 48.0 d 73.0 a 98.0 d 123.0 d 148.0 c24.0 b 49.0 c 74.0 b 99.0 b 124.0 b 149.0 a25.0 d 50.0 b 75.0 b 100.0 a 125.0 c 150.0 c