Total Score =
29
Clear
5ide Ans.
Chec4 and how Ans.
d
1.0 1.0
When When hydr hydrog ogen en cont contro roll is is spec specif ifie ied d for for MMA MMA weld weldin ing, g, what what type type of of elec electr trod ode e woul would d norm normal ally ly be a. Cellulosic b. Rutile c. Acidic d. asic
c
!.0
"he term Transition Temperature is Temperature is associated with8 a. "ensi nsile testing b. #ill #illet et frac fractu ture re test testin ing g c. $mpa $mpact ct tou tough ghne ness ss tes testi ting ng d. "he electr electrica icall char charact acteri eristi stic c of of a power power source source
a
%.0
Wha What is is me meant by by the te term sp specification? a. A document document that prescribes prescribes the re&uirem re&uirements ents with with which which the the product product or ser'ice ser'ice has to conf b. A set set of guid guideli elines nes reco recomme mmendi nding ng pract practice ices s and proc procedur edures es c. A genera generall term term gi'en gi'en to to all all norm normati ati'e 'e documen documents ts d. A written written descri description ption of the e(act e(act steps to to be follow followed ed in manufact manufacturin uring g a product product
d
).0 ).0
A cell cellul ulos osic ic,, MMA MMA elec electr trod ode e coul could d be iden identi tifi fied ed from from the* the* a. Colo Colour ur of the the flu flu( ( co' co'er erin ing g b. +eng +engtth of of the the elec electtrode rode c. "rade rade name name of the the ele elect ctro rode de d. AW- W- / / clas classi sifi fica cati tion on
d
.0 .0
What What is mea meant nt by the the ter term m mi minim nimum inter nterpa pass ss temp temper erat atur ure? e? a. Minimu Minimum m post post weld weld heat treatm treatment ent temper temperatu ature re b. Mini Minimu mum m str stres ess s rel relie ieff tem temper perat atur ure e c. "he lowes lowestt temper temperatu ature re allow allowed ed during during weld welding ing and and between between weld weld passes passes d. "he lowest lowest temper temperatu ature re to be used used during during prehe preheat at
c
2.0 2.0
"he hea heat input put during a fusion weld elding pro process* a. 3oes not affect affect the grain grain structure structure of the material material unless it is is 'ery 'ery high high b. Must Must be be high high as poss possibl ible e to to a'oid a'oid lac4 lac4 of fusion fusion c. Affe Affect cts s the the widt width h and and meta metall llur urgy gy of of the the 5A6 5A6 d. Must Must be be 'ery 'ery low low to to a'oi a'oid d grai grain n grow growth th
c
7.0 7.0
A large gr grain st structure in in st steel eel cou coulld pr produc duce a. +ow +ow duct ductil iliity 'alue alues s b. +ow +ow fra fract ctur ure e toug toughn hnes ess s 'alu 'alues es c. 5igh 5igh fra fract ctur ure e toug toughn hnes ess s 'alu 'alues es d. 5igh igh ten tensi sille st streng rengtth
b
9.0 9.0
What What wou would ld be a typ typic ical al weld weldin ing g defe defect ct asso associ ciat ated ed with with the the "$: "$: weld weldin ing g pro proce cess ss? ? a. lag in inclusions b. "ung ungsten sten incl inclus usiions ons c. 5ydrogen cr crac4ing d. oli olidi difi fica cati tion on crac crac4i 4ing ng
b
;.0 ;.0
Which Which of the the fol follo lowi wing ng are are cor corre rect ct dime dimens nsio ions ns for for the the 'ee 'ee not notch ch in a cha charp rpy y spec specim imen en? ? a. 3epth 3epth !.m !.mm, m, incl included uded angle angle )0<, )0<, root root radiu radius s 0.!m 0.!mm m b. 3epth 3epth !mm, !mm, incl include uded d angle angle )<, )<, root root radius radius 0.!mm 0.!mm c. 3epth 3epth !mm, !mm, incl include uded d angle angle !!.<, !!.<, root root radi radius us 0.% 0.%mm mm d. 3epth 3epth !.m !.mm, m, incl included uded angle angle !!. !!.<, <, root root radius radius 0.!0mm 0.!0mm
c
10.0 10.0
What What is mea meant nt by the the ter term m C=3 =3 =# >RA >RAC"$C "$C? a. A docume document nt that that pro'id pro'ides es guid guidanc ance e on auditi auditing ng b. A chec4list c. A docume documents nts whic which h recom recommen mends ds pract practice ices s and proced procedure ures s d. A stand standar ard d for for stan standar dardi dia ati tion on
b
11.0 1.0
Which Which of the the fol follo lowi wing ng best best des descr crib ibes es the the dut duty y of of a weld weldin ing g ins inspe pect ctor or? ? a. "o carry carry out out inspec inspectio tion n and /3" /3" in order order to to find weld weld defec defects. ts. b. "o atte attemp mptt to ens ensur ure e that that all all wel weldi ding ng and and any any ass assoc ocia iate ted d acti action ons s are are carr carrie ied d out out in acc accor orda da c. "o carry carry out out weld welding ing inspec inspectio tion n and radiog radiograp raphic hic interp interpret retati ation on in in accor accordan dance ce with with the agre agre d. "o ensure ensure that that all all welds welds which which undergo undergo inspect inspection ion are are free free of defects. defects.
1!.0 1!.0
When When 'is 'isua uall lly y ins inspe pect ctin ing g the the roo roott of a sing single le @ but buttt wel weld d wit with h the the e(te e(tern rnal al e(ce e(cess ss weld eld met metal al re Root concavity concavity shall shall be acceptable acceptable provided provided that the the density of the the radiographic radiographic images images does n Which if the following would be correct? a. "he "he mus mustt be be rad radiiogr ographe aphed d b. entencing entencing of the radiogr radiograph aph could could only only be carri carried ed out by by a &ualifi &ualified ed radiograph radiograph interprete interprete c. "he weld weld is acce accepta ptable ble,, ther there e is no radi radiogr ograph aph to to 'iew 'iew d. "he "he wel weld d sho shoul uld d be be re reec ecte ted d Which Which of of the the follow following ing mechani mechanical cal proper propertie ties s of of a weld weld made on CMn CMn stee steell is is most most affect affected, ed, if a. "ensi nsile st streng ength b. "oughness c. 3uctility d. longation
b
1%.0 1%.0
b
1).0 1).0
What is the the ma(i ma(imum mum allow allowabl able e 5$-+= 5$-+= for 9 mm thic4 thic4 mate materia riall ifif the the foll followi owing ng is is appli applied8 ed8 +inear +inear a. b. c. d.
b
1.0 1.0
0.9 mm ! mm 9.9 mm $t can can not not be sent sentenc enced ed as an other other side side is show shown n by the the symbo symboll
"he "he mai main n cau caus ses of of sol solidi idifica ficattion cr crac4i ac4ing ng are? are?
a. b. c. d.
>hosph >hosphor or,, oin ointt geom geometr etry y and and tensil tensile e stre stress ss ulphur ulphur,, oin ointt geom geometr etry y and and tensil tensile e stre stress ss 5ydrog 5ydrogen, en, oint oint geomet geometry ry and tensil tensile e stre stress ss +aminat +amination ions, s, poor poor throug through h thic4nes thic4ness s ductil ductility ity and and tensil tensile e stress stress
c
12.0 12.0
When M$: weldi welding ng alumin aluminum um alloys alloys in the o'erhe o'erhead ad posi positio tion n whic which h curre current nt type type woul would d norma normall lly y a. A.C. b. 3.C. negati'e c. 3.C. po positi'e d. 3rooping
d
17.0 17.0
An electr electrode ode identi identifie fied d as 201% 201% would would be clas classif sified ied to whic which h of the follow following ing standar standardsdsa. / );; b. AW A. c. / ))0 d. AW A.1
a
19.0 19.0
Conc Conca' a'e e roo roott may may be caus caused ed by which hich of the the fol follo low wing* ing* a. (cess (cessi' i'e e bac4 bac4 purge purge press pressure ure of of e(cess e(cessi' i'e e root root grind grinding ing b. (cess (cessi' i'e e bac4 bac4 purge purge pressu pressure re and entrap entrapped ped gas c. (ce (cess ssi' i'e e heat heat inp input uts s or too too sma small ll a root root fac face e d. (cess (cessi' i'e e heat heat inputs inputs and high high tra' tra'el el speeds speeds
d
1;.0 1;.0
$nco $ncomp mple lete te root root pene penetr trat atio ion n in in a but buttt wel weld d coul could d be caus caused ed by* by* a. (ce (cess ssi' i'e e roo roott fac face e wid width th b. (ce (cess ssii'e roo roott gap gap si sie c. +ow +ow cu current ent se setting d. oth A C
b
!0.0 !0.0
Whi Which of the fol followi owing is not not a ty type of crac crac4? 4? a. #issure b. #ish eye c. +amellar tear d. 5ot tear
a
!1.0 !1.0
Acco Accord rdin ing g to to / / !! !!% % a wel weld d on on the the othe otherr sid side e is is sho shown wn by the the sym symbol bol? ? a. =n the the das dashed hed iden identi tifi fica cati tion on line line b. elo elow w the the refe refere renc nce e line line c. =n th the so solid line d. Abo' Abo'e e the the refe refere renc nce e line line
c
!!.0 !!.0
Accord According ing to AW A.1 A.1 whic which h of the follow following ing MMA-M MMA-MAW AW elec electro trodes des would would be be class classifi ified ed as as ru ru a. 2010
b. c. d.
7019 201% ;011
b
!%.0 !%.0
Which Which of the the fol follo lowi wing ng best best desc descri ribe bes s the the elas elasti tic c lim limit it? ? a. "he resist resistanc ance e to fractu fracture re under under impact impact loadin loading g b. "he ma(imum ma(imum stress stress a materi material al can can be subec subected ted to to without without permanent permanent deforma deformation tion c. "he poin pointt at at whi which ch the the mat mater eria iall fai fails ls d. "he ability ability of a material material to stretch stretch and and become become permanentl permanently y deformed deformed withou withoutt brea4ing brea4ing or or
a
!).0 !).0
Which Which of of the the fol follo lowi wing ng butt butt weld weld prep prepar arat atio ions ns is is usua usuall lly y sus susce cept ptib ible le to lac4 lac4 of sid side e wal walll fus fusio ion n du a. A doub doublle D but butt weld. eld. b. A sing singlle @ but butt wel weld. d. c. A doub doublle @ but butt weld. eld. d. +ac4 of side side wall wall fusi fusion on is not not a probl problem em with with MMA MMA weldin welding g
b
!.0
Wha What is is the the 5eat eat Affected 6o 6one E5 E5A6F? a. $t is the melted melted porti portion on of of the the pare parent nt materi material al b. $t is the area area adacent adacent to to the weld weld metal metal which which has has undergone undergone micro micro struct structural ural change c. $t is the weld weld area area plus the parent parent material material which which has undergo undergone ne micro micro structur structural al change change d. $t is is the the area area of the lowe lowest st tens tensile ile streng strength th in in the the weld weld regi region on
d
!2.0 !2.0
What What cou could ld Carb Carbon on &ui &ui'a 'ale lent nt @alue alues s EC EC@F @F be used used for? for? a. Asss Assses es the the ris ris4 4 of of lam lamel ella larr tea teari ring ng b. sti stima mate tes s the the need need for for >W5 >W5" " c. Calc Calcul ulat ate e 5A6 5A6 toug toughn hnes ess. s. d. 3ete 3eterm rmin ine e the the pre prehe heat at to to be used used
d
!7.0 !7.0
Whi Which of the fol followi owing stat statem emen entts is is true true? ? a. lectr lectrode ode d.c. d.c. posi positi' ti'e e produce produces s a deep deep narrow narrow weld weld pool pool b. Ruti Rutile le means means calc calciu ium m carb carbon onat ate e c. >oro >orosi sity ty is alw always ays rep repai aire red d d. 3.C. 3.C. elect electrod rode e positi positi'e 'e is is used used for for MA: MA: weld welding ing steel steel
c
!9.0
"he term duty cycle refers to what? a. "he shif shiftt pat patte tern rn of ins inspe pect ctio ion n staf staff f b. A safet safety y rating rating gi' gi'ing ing outpu outputt capabil capability ity of of weldin welding g e&uipme e&uipment nt c. A safet safety y rating rating gi' gi'ing ing heat heat input input capabi capabili lity ty of weldi welding ng e&uipm e&uipment ent d. Comp Compon onen entt lif life e e(p e(pec ecta tanc ncy y
d
!;.0 !;.0
Which Which of of the the foll follow owin ing g defe defect cts s woul would d not not norm normal ally ly be det detec ecte ted d by radi radiog ogra raphy phy? ? a. ! mm by ) mm long long center centerlin line e crac4 crac4 in the the weld weld root root b. !00 !00 mm mm lon long g lam lamiinati nation on
c. d.
10 mm deep lac4 of side wall fusion A 1. mm diameter gas pore
a
%0.0
A short trans'erse tensile test E"RA testF will gi'e what? a. "he stress-strain characteristics of the oint b. "he tensile strength of the weld c. An indication of susceptibility to hydrogen crac4ing d. An indication of the material susceptibility to lamellar tearing
d
%1.0
When monitoring welding current using a tongue test ammeter it is essential that it is placed aro a. As close as practical to the arc b. At a portion that depends on the welding process c. As close as practical to the power source d. At a position con'enient to the welder.
a
%!.0
Welding a single @ butt weld with laminations in the side wall may cause * a. +amellar tearing b. olidification crac4ing c. Matensite d. Dndercut
b
%%.0
"he pressure of iron sulphide in weld metal is most li4ely to produce which of the following crac a. 5ydrogen crac4ing b. olidification crac4ing c. +amellar tearing d. Re heat crac4ing
a
%).0
Which of the following statements regarding carbon steels is false? a. 5igh heat input results in high hardness b. 5igh heat may result in large grains c. +oss of toughness may result from wea'ing d. "oughness may be restored by normaliing
c
%.0
Why is the arc shielded when using an arc welding process? a. "o eliminate hydrogen from the region of the arc b. "o retard the cooling rate of the weld c. "o e(clude the atmosphere from the region of the arc d. All of the abo'e
c
%2.0
#or a. b. c.
a gi'en 'oltage and current setting on a constant output power source, when the arc length "he current will decrease the 'oltage will increase "he tra'el speed will increase the current will decrease "he current will increase the 'oltage will decrease
d.
"he current will increase the tra'el speed will decrease
b
%7.0
When considering lamellar tearing what is buttering run? a. A weld deposit used to increase the throat thic4ness sie of a fillet weld b. A weld deposit which may be used to ta4e up contraction stresses c. A weld deposit used to increase the D" 'alue of the parent material d. A weld deposit used to locally heat treat preceding weld runs
c
%9.0
Which of the following is not a fusion welding process? a. lectroslag welding b. =(ygas welding c. #orge welding d. "$: welding
b
%;.0
5ow many temperature indicating crayons would be re&uired to ensure that a preheat tempera a. =ne b. "wo c. "hree d. As many as possible
c
)0.0
5ydrogen crac4ing is most li4ely to occur when welding* a. Carbon manganese steels b. tainless steels c. 5igh strength low alloy steels d. +ow carbon steels
)1.0
"he throat thic4ness of a mitre fillet weld with !0mm e&ual leg lengths will be* a. !mm b. 17mm c. 1)mm d. $t cannot be determined from the information gi'en
)!.0
"he a. b. c. d.
)%.0
Autogenous welding means? a. #ully automated b. #usion welding with filler wire c. #ully mechanied d. #usion welding without filler wire
bac4 step method of welding could be used to control8 Weld profile >enetration Dndercut 3istortion
)).0
According to / !!% the number 111 at the end of the dual weld symbol reference line w a. "he welding procedure number b. "he welding process is manual metal arc welding c. "he welding process is "$: d. "he type of welding electrode
).0
"he leg length of a mitre fillet weld with an 9 mm throat thic4ness will be* a. b. c. d.
11. mm 10 mm 1! mm 10. mm
)2.0
"he direction of shrin4age in a welded oint are8 a. "rans'erse, short trans'erse and linear b. +ongitudinal, trans'erse and short trans'erse c. Angular, diagonal and transgranular d. "rans'erse, diagonal and torsional
)7.0
An alteration of an essential 'ariable on a W>HR may* a. Change the properties of the weld b. Affect 'isual acceptance c. Re&uire re appro'al d. All of the abo'e
)9.0
>reheating prior to welding on high tensile strength materials applies to which of the following? a. =nly on oints o'er !mm thic4ness b. >roduction welding and tac4 welding c. >roduction welding only d. >reheat is not re&uired if >W5" is to be carried out
);.0
Which of the following would be typical arc energy for a single pass MA: weld? a. 1.! I-mm b. 0.1! 4I-mm c. 1! 4I-mm d. 1.! 4I-mm
0.0
Which of the following radioacti'e isotopes is most commonly used for the gamma radiography a. "horium ;0 b. Cobalt 20 c. $ridium 1;! d. Jtterbium 12;
1.0
Which of the following defects is most li4ely to be caused by poor welding techni&ue when usin a. 5ydrogen $nduced Cold Crac4ing b. Crater crac4s c. >late laminations d. Copper inclusions
!.0
A fillet weld with e&ual leg lengths of 1mm and a throat thic4ness measurement of ; mm woul a. Conca'e b. Con'e( c. Mitre d. /one of the abo'e
%.0
tray arcing may be considered to be serious defect because* a. $t may reduce the thic4ness of the component b. $t may cause li&uation crac4ing c. $t may cause hard areas d. All of the abo'e
).0
According to AW !.) a weld symbol shown below the reference line would indicate8 a. A weld made on the other side of the oint b. A weld made on the root side of the oint c. A weld made on the arrow side of the oint d. /one of abo'e8 the symbol should be on the dashed line
.0
A flu( for AW is described as sharp of glassy in appearance. What type of flu( could this be? a. asic b. #used c. Acidic d. Al4aline
2.0
Mo'ement of the arc by magnetic forces is termed? a. Arc de'iation b. Arc eye c. Arc stri4e d. Arc blow
7.0
Which of the following MMA electrode types would be associated with the sto'e welding techni& a. Cellulosic b. Rutile c. Agglomerated d. asic
9.0
$s it permissible to allow a single @ butt weld to cool down between passes? a. $t depends on the welder b. $t depends on the specification-procedure c. $t depends on the welding inspector d. /o, all welds should be completed before being allowed to cool
;.0
A common gas-gas mi(ture used for M$: welding nic4el alloys to combine good le'els of penetr a. 100B C0! b. 100B Argon c. 90B Argon K !0 C0! d. ;9B Argon K ! =!
20.0
Cold lap is another term for* a. +ac4 of fusion at the toes of e(cess weld metal b. Dndercut at the toe of a weld c. +ac4 of root penetration d. $ncomplete filled groo'e
21.0
Which of the following welding processes would gi'e the highest heat input when using typical a. Manual metal arc welding b. hielded metal arc welding c. ubmerged arc welding d. "ungsten inert gas welding
2!.0
Manual metal are electrodes can be grouped into three main types. What are they? a. #used, cellulosic basic b. /eutral, Cellulosic basic c. Agglomerated, Cellulosic Rutile d. Rutile, basic Cellulosic
2%.0
$ncomplete root fusion could certainly be caused by* a. +inear misalignment b. $ncorrect electrode tilt angle c. 3iffering root face widths d. All of the abo'e
2).0
Which of the following abbre'iations is the odd one out? a. :"AW b. MMA c. MAW d. :MAW
2.0
"he main reason for using bac4 purge welding 199 stainless steel with the "$: welding proces
a. b. c. d.
Control root penetration >re'ent root bead porosity $mpro'e positional welding >re'ent o(idation of the weld root
22.0
$n a martensitic grain structure which of the following mechanical properties would be more li4el a. 3uctility b. 5ardness c. "oughness d. All of the abo'e
27.0
#or crosscountry pipelines, which type of MMA electrode would re&uire the deposition of hot pa a. asic b. $ron powder c. Cellulose d. Rutile
29.0
What is the ratio between the leg length and the throat thic4ness on a mitre fillet weld with e&ua a. 1*01 b. !*01 c. 1.)1)* 1 d. 3epends on the fillet weld dimensions and oint fit up.
2;.0
"he steel composition in structural steel is changed from 0.1B carbon 0.2B manganese to 0.! a. 3ecrease in tensile strength b. $ncrease in ductility c. 3ecrease in hardness d. Crac4ing in the weld area
70.0
Which of the following alloys is nonmagnetic ? a. )B Chromium molybdenum b. 1!B Chromium c. Austenitic stainless steels d. ;B /ic4el steel
71.0
Which of the following radioacti'e terms is not associated with /3"? a. :amma b. Cobalt 20 c. "horium d. $ridium 1;!
7!.0
hin4age that ta4es place in line EparallelF to the weld line of the oint is termed? a. "rans'erse
b. c. d.
7%.0
5oop +ongitudinal owing
Complete the sentence to ma4e a true statement a. b. c. d.
G..must always be dressed to reduce stress raisers G..must always o'erlap onto the e(ternal surface of the plate or pipe by at least 1.mmL G..must always be chec4ed by /3"L G..none of the abo'e can be selected as the specification re&uirements are un4nown
7).0
Which of the following would relate to the term planar defect? a. A lamination b. A serious defect which could lead to failure of the product c. An elongated slag inclusion d. oth A
7.0
+amellar tearing has occurred in steel fabrication. efore welding could it ha'e been detected a. Radiography b. 3ye penetrant inspection c. $t would not ha'e found by any inspection method d. Dltrasonic testing
72.0
What are the four criteria necessary to produce 5$CC? a. 5ydrogen , moisture, martensite, heat b. 5ydrogen, poor weld profile, temperature abo'e !00< C and slow cooling c. 5ydrogen, a grain structure susceptible to crac4ing , stress and a temperature below !00< d. 5ydrogen, weld defects, pearlite and high input
77.0
A typical arc energy 'alue for a MA: weld run would be? a. 1.! 4I-mm b. 1! 4I c. 1.! I-mm d. 1!0 4I-mm
79.0
What is typical carbon e&ui'alent in carbon manganese steels? a. )B b. 0.%%B c. 0.)B d. 0.1!B
7;.0
Which of the following may increase the ris4 of 5A6 crac4ing when welding thic4 section carbon a. +ow moisture content in the electrode co'ering b. low cooling after welding
c. d.
Dse of low heat input Dse of a steel with low Ce&B
90.0
"he presence of iron sulphide in the weld metal is most li4ely to produce which of the following a. 5ydrogen $nduced Cold Crac4ing b. Re heat crac4ing c. +ammellar tearing d. olidification crac4ing
91.0
"he use of a degreasing sol'ent, for cleaning the oint prior to welding, may be classed as an u a. "he welds may contain porosity b. 5armful fumes may be gi'en off c. "races from the sol'ent may cause irregular arcing d. $ts use could lead to crac4ing in the 5A6
9!.0
$n order to calculate arc energy, it is necessary to 4now what? a. Amperage and 'oltage b. Current, 'oltage and wea'e width c. Amperage, 'oltage and tra'el speed d. Wire feed speed, 'oltage and burn off rate
9%.0
When welding low carbon steels with the :MAW process on dip transfer, one purpose of the in a. patter b. +ac4 of fusion c. >orosity d. Cold lap
9).0
Which of the following welding processes uses a constant 'oltage output characteristic* a. ubarc1000amps, MMA, electroslag b. "$:, subarcN1000amps, electroslag c. ubarc1000amps, M$:-MA:, electroslag d. M$:-MA:, subarcN1000amps, electroslag
9.0 According to / !!% the letter a preceding the symbol for a fillet weld would indicate that a. +eg +ength b. /ominal depth of penetration c. 3esign throat thic4ness d. All of the abo'e
92.0
Which of the following will be the most affected when 'arying the arc length using the MMA wel a. @oltage b. Amperage c. >olarity
d.
"ra'el speed
97.0
Which of the following would not be classed as a weld with bac4ing? a. A single@ weld with a remo'able bac4ing strip b. A single@ weld with a bac4 purge c. A single@ weld with a permanent bac4ing strip d. A double@ weld with a bac4 gouged root
99.0
$n DO, practice, / !!% specifies that the minimum drawing dimension for a fillet weld is t a. +eg +ength b. Actual throat thic4ness c. Weld Width d. 3epth of penetration
9;.0
Why is preheat sometimes carried out on steels? a. "o remo'e moisture from the weld preparation b. "o retard the cooling rate of the weld c. "o aid fusion between weld metal and parent material d. All of the abo'e
;0.0
According to / !!%, what would an elongated 6 through the dual reference line on the ri a. "hroat thic4ness b. "he weld toes must be dressed c. +eg length d. $ntermittent welds that are staggered.
;1.0
MMA electrodes that show a light coating of rust on the core wire, should8 a. e reba4ed according to the manufacturerPs instructions b. e cleaned with sol'ent c. 5a'e all rust remo'ed by abrasi'es before use d. e &uarantined for further inspection
;!.0
A welder &ualification test is used to 'erify* a. "he compatibility between consumable and materials b. "he s4ill of the welder c. "he manufacturing process d. "he /3" procedures
;%.0
What is the 5eat Affected 6one? a. $t is the melted part of the plate material b. $t is the area immediately adacent to the weld metal which has undergone a micro structu c. $t is the weld area plus the parent material which has undergone a micro structural change d. $t is the area in the weld one with the lowest tensile strength
;).0
Which of the following mechanical testEsF gi'es a &uantitati'e measurement of ductility? a. "ensile test b. end test c. Charpy test d. /ic4 brea4 test
;.0
According to );; 1 what is meant by the term weld unction? a. "he area containing the weld metal and 5A6 b. "he weld metal and parent metal c. "he boundary between the fusion one and the 5A6 d. "he area which undergoes metallurgical change
;2.0
What is the throat thic4ness of a mitre fillet weld e&ual leg lengths? a. "he distance from the toe to the face. b. "he distance from the root to the face center. c. "he distance from the root to the toe. d. "he distance from the toe to toe.
;7.0
$n which of the following positions would you e(pect to find the highest heat input on a pipe butt a. >A b. > c. ># d. >:
;9.0
Which of the following is the correct heat input for a MA: weld if the 'alues recorded were8 !90 a. 1.) 4I-mm b. 1.1! 4I-mm c. 11 4I-mm d. 1.1! I-mm
;;.0
Which of the following / standards pro'ides guidance on the 'isual e(amination of fusion a. / ;10 b. / 71; c. / ;70 d. / );;
100.0 When calculating preheat re&uirements what factors need to be considered? a. 5eat input, material thic4ness and rate of cooling b. "ra'el speed, heat input and carbon e&ui'alent c. 5eat input, carbon e&ui'alent and material thic4ness d. "ra'el speed, rate of cooling and welding position
101.0 Which of the following type of bend test would best show lac4 of inter run fusion on a ! mm thi a. Root bend b. #ace bend c. ide bend d. 3 bend
10!.0 An in'erter.......* a. Changes ac to dc b. Changes dc to ac at a higher fre&uency c. Changes mains ac to ac suitable for welding d. Changes welding polarity
10%.0 3efects out side the limits specified by the standard should always be* a. Reported to a senior person b. Repaired as soon as possible c. Radiographed when practicable d. All of the abo'e
10).0 Which of the following is true for none planar defects found in a weld? a. "hey are always acceptable b. $f found brea4ing the surface, remo'able of the entire weld is necessary c. "hey are not usually as significant as planar defects d. "hey can only be detected by radiography
10.0 "he a. b. c. d.
shear strength of a fillet weld is go'erned by* "he leg length "he weld face "he throat thic4ness "he weld one
102.0 Which of the following best describes a semiautomatic welding process? a. "he welder is responsible for the arc gap and tra'el speed b. "he welder is responsible for tra'el speed only c. "he power source controls both arc gap and tra'el speed but under constant super'ision d. "he power source controls both tra'el speed and arc gap
107.0 Which submerged arc welding flu( may be described as powdery or ball li4e? a. asic b. #used c. Agglomerated d. Acidic
109.0 $n arc welding processes, e(cess weld metal profile is most affected by* a. Arc +ength b. =pen circuit 'oltage c. Amperage d. Root gap
10;.0 Which of the following would be considered to be the duty of a welding inspector? a. uper'ision of welders b. Writing procedures c. Witness welder &ualification test d. All of the abo'e
110.0 5ow would a fillet weld with a leg length 7mm be indicate to / !!%? a. 7 b. a7 c. s7 d. 7
111.0 Which of the following butt welds would be considered the most difficult to weld? a. 3ouble @ butt welded both sides b. ingle @ butt c. ingle D butt with bac4ing d. Assymetrical double @ butt welded both sides
11!.0 A submerged arc flu( described as flac4y or sharp would be classed as? a. Agglomerated b. #used c. asic d. Acidic
11%.0 3uring "$: welding the arc 'oltage is controlled by* a. "he welder b. "he flat output characteristic of the power source c. "he polarity of the electrode d. "he constant 'oltage control
11).0 +ap oints contain* a. #illet welds b. Corner oints c. utt welds d. ingle be'el butt welds
11.0 What is lamellar tearing?
a. b. c. d.
A product defect caused during steel manufacture A hot crac4 mechanism associated with oint fit up A crac4 mechanism which occurs in the parent material due to welding stress acting in the A type of crac4 associated with welds which are subected to cyclic loading
112.0 What is crater pipe? a. Another term for conca'e root b. Another term for a burn through c. A type of gas pore found in the weld crater d. A shrin4age defect which may be found in a weld crater
117.0 Autogenous welding refers to what? a. A mechanied welding process b. An automated welding process c. A means of welding without a filler wire d. A manual welding process
119.0 A duty not normally underta4en by a welding inspector is to* a. Chec4 the condition of the consumables b. Chec4 the be'el angle for damage c. Measure residual stress d. Measure preheat temperature
11;.0 A Constant @oltage output characteristic would be re&uired for which of the following welding pr a. MMA - MAW b. "$: - :"AW c. M$: - MA: - :MAW d. "A:
1!0.0 / 121) refers to what? a. Welder appro'al testing b. Welding e&uipment 'alidation c. Welding procedure &ualification d. Weld symbols on fabrication drawings
1!1.0 What would be a typical diameter range for basic electrodes for all positional MMA welding? a. !. 9 mm b. 0.9 1.! mm c. !. ) mm d. ie does not matter
1!!.0 What is meant by the term pecification? a. A written description of all essential parameters and precautions to be obser'ed
b. c. d.
3ocument established by consensus and appro'ed by a recognied body A document that prescribes the re&uirements with which the product or ser'ice has to conf A written description of the precise steps to be followed
1!%.0 Which of the following hardness tests would be used by a test house to assess hardness for we a. rinell b. Roc4well c. @ic4ers d. cotip
1!).0 Which of the following parameters presents the greatest difficulty when monitoring MMA weldin a. Current b. "ra'el speed c. Arc length d. $nterpass temperature
1!.0 What is another term for suc4buc4? a. Conca'e root b. Root piping c. $ncomplete filled groo'e d. lag inclusions between the root run and hot pass
1!2.0 Which welding process would not be suitable for welding carbon steel? a. MMA b. M$: c. AW d. "$:
1!7.0 A metallurgical problem most associated with submerged arc welding is* a. 5ydrogen crac4ing in the 5A6 b. olidification crac4ing in the weld metal c. +amellar tearing in the weld metal d. 5ydrogen crac4ing in the weld metal
1!9.0 >reheat prior to welding* a. Must always be carried out on steels b. /eed not be carried out if >W5" is to follow welding c. Must always be carried out using gas flames d. /one of the abo'e
1!;.0 "he output characteristic for a "$:-MMA power source would be? a. Constant current b. Constant polarity
c. d.
Constant 'oltage Constant pulsing
1%0.0 =n an electrode classified to / );; as )! % , the figure % would represent* a. trength elongation properties b. $mpact properties c. Chemical composition d. Weld metal reco'ery and type of current
1%1.0 A crater crac4 may also be described as* a. Cold crac4 b. "earing c. tar crac4 d. #atigue crac4
1%!.0 What action should the welding inspector ta4e if arc stri4es are found adacent to the weld on a a. 5a'e the weld and adacent parent material remo'ed b. Report the presence of arc stri4es. c. Accept the weld d. 5a'e the welder re&ualified
1%%.0 Which of the following would act as deo(idisers in a tertiary deo(idised MA: welding wire? a. Manganese, silicon, copper b. ilicon, nic4el, aluminum c. Manganese, silicon, aluminum d. Manganese, molybdenum, nic4el
1%).0 Which of the following gas mi(tures would you e(pect to use to gi'e good weld profile and pene a. 100B Argon b. 90B Argon K !0B C0! c. ;9B 5elium K !B C0! d. 100B C0!
1%.0 What is leg length of a fillet weld? a. "he distance from the toe to the face. b. "he distance from the root to the face center. c. "he distance from toe to root. d. "he distance from the toe to toe.
1%2.0 "he / code for welder appro'al is* a. b.
/ )97! / );;
c. d.
/ !97 / 71;
1%7.0 =n an electrode classified to / );; as )! % the )! would indicate? a. )!0 /-mm! min yield strength b. )! Ioules %0
1%9.0 M$:-MA: welding using 3ip "ransfer mode is susceptible to* a. olidification crac4ing b. lag inclusions c. +ac4 of side wall fusion d. 5ydrogen crac4ing
1%;.0 "he a. b. c. d.
term bac4 step welding refers to what? Welding position Welding schedule Welding run se&uence Welding deposition rate
1)0.0 What is the possible result if the amperage is too low during the welding of the root pass using t a. $ncomplete root penetration b. +ac4 of root fusion c. lectrode stic4ing-stumble d. All of the abo'e
1)1.0 A fillet weld has a design throat thic4ness of 2mm. What is the minimum leg length re&uired? a. ).!mm b. 9.mm c. 9.!mm d. $t is impossible to determine the sie from the information gi'en
1)!.0 Dltra sonic testing is of ad'antage in detecting which of the following weld imperfections o'er ot a. +ac4 of side wall fusion b. urface undercut c. $ncomplete filled groo'e d. Cold lap
1)%.0 When referring to fully austenitic stainless steels which one of the following statements would b a. $t is magnetic under certain conditions b. $t has a poor toughness at low temperatures c. $t has a low coefficient of thermal e(pansion and a high coefficient of thermal conducti'ity d. $t has a high coefficient of thermal e(pansion and a low coefficient of thermal conducti'ity
1)).0 Which of the following standards gi'es guidance for the production of a W>H"? a. / !!% b. / );; c. / 121) d. / !97
1).0 3uring M$:-MA: welding the arc length is most li4ely to be affected by* a. "he wire diameter b. "he current return connections c. "he gas flow rate d. "he torch to wor4 angle
1)2.0 MAW welding e&uipment re&uires what type of output characteristic? a. Constant 'oltage b. #lat c. Constant current d. Constant polarity
1)7.0 Dnder most conditions which of the following welding positions will deposit the most weld metal a. >: b. 5+0) c. ># d. >A
1)9.0 "he area of oining between parent metal and weld metal is termed a. "he fusion one b. "he 5A6 c. "he weld one d. "he parent material
1);.0 A welder &ualified in the >: position, to $= 2;)7, would normally be &ualified for welding8 a. All >ipe diameters b. All welding positions c. >: only d. Any pipe- plate thic4ness
10.0 Which of the following is true regarding hydrogen crac4ing? a. $t is type of hot crac4 b. $t is most commonly found in ductile materials c. $t is only occurs in the 5A6 d. $t is the most common type of crac4 encountered in steel weldments
used?
orm
nce with agreed specification. ed procedures for the wor4 being carried out.
o'ed, root conca'ity of 0.mm depth is identified. "he application standard contains the following statement t exceed that of the parent material
.
the heat input per unit length of weld is e(cessi'ely high*
misalignment is permissible if the ma(imum dimension does not e(ceed 10 B of t up to a ma(imum of ! mm-
be used?
tile?
rac4ing
ring manual metal arc welding process?
und the welding cableGG
mechanism as the contracts after welding*
is shortened*
ure was within a specified range?
uld indicate?
of welds?
the MMA process?
ha'e what type of profile?
ue?
ation with good arc stability would be*
arameters?
is to
to increase?
ss techni&ue to reduce the ris4 of crac4ing in the root bead?
l lengths?
carbon 1.!B manganese. What might this influence?
y*
manganese
rac4 mechanisms, as the weld contracts?
safe practice because8
uctance control is to reduce*
hat?
ing process?
he *
ght hand side of fillet weld symbols indicate?
ral change
weld made with the pipe a(is in the horiontal position, weld a(is in the 'ertical position?
Amps, !2 'olts, tra'el speed %10mm-min.E"hermal efficiency for MA: welding Q 0.9F
elds?
c4 carbon steel butt weld?
short trans'erse direction of the parent material
cess?
orm
lding procedure appro'al in DO?
*
high tensile strength materialEthe specification does not reference arc stri4esF
tration when MA: welding carbon steels?
he MMA welding process?
er /3" methods*
correct?
