CSWIP Practice Multi Choice

Practice multi choice questions CSWIP 3.1 . 1

Applyi Appl ying ng pre prehe heat at whe when n weld weldin ing g carb carbon on man manga gane nese se ste steel el is is norm normal ally ly don donee to avoid: a) Slag inclsions  b) !ydrogen crac"ing c) #ac" o$ sidewall $sion d) Porosity

%

Which Whic h o$ $o $oll llow owin ing g mec mecha hani nica call pr prop oper erti ties es o$ o$ a wel weld d in ca carb rbon on man manga gane nese se stee st eell is mo most st a$ a$$e $ect cted ed i$ th thee he heat at inp inptt pe perr n nit it le leng ngth th o$ we weld ld is e&cessively high' a)  b) c) d)

3

*o obs observe ce centerline cr crac"i "in ng a weld tha that as bee been mad made one one o$ $iv $ive wor" stations each ma"ing similar components. he $irst action to ta"e is: a)  b) c) d)



4

Impond Impon d all all weld welding ing con consm smabl ables es +eport the occrrence to high athority Stop St op al alll wel weldi ding ng Call Ca ll $or $or $l $lll ,- ,- chec chec"s "s

Which o$ the $ollowing de$ects is nli"ely to be $ond by visal inspection. a)  b) c) d)



(longation ensile strength !ardness oghness

#inear misalignment /nderct 0verlap #inear slag inclsion

Which Whic h o$ the the $ol $ollo lowi wing ng wel weldi ding ng pro proce cess sses es se sess a resi resisi siti tive ve hea heati ting ng sy syst stem em to achieve weld metal deposition. a) 2anal metal arc welding  b) Sbmergedarc welding c) (lectro slag welding d) +esistance sp spot we welding Whi hich ch o$ o$ the the $oll $ollow owin ing g nit nitss col cold d Char Charpy py 5 not notch ch ene energ rgy y be mea meas srred in'  Page 1 of 32

a)  b) c) d) 8

he sa he sall met metho hod d o$ ass asses essi sing ng the the sen sensi siti tivi vity ty o$ o$ rad radio iogr grap aph h is by by mea means ns o$ o$ a: a)  b) c) d)

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@end test 2acro e&amination Impact tests 9ractre tests

!ydr !y droge ogen n cont contro roll lled ed ele elect ctro rode dess were were de deve velo lope ped d prin princi cipal pally ly $o $or: r: a)  b) c) d)

11

2andatory -epend pon site and weather conditions -epe -e pend nden entt pon pon the the con contr trac acto tor> r>ss con$ con$id iden ence ce in in his his proc proced edr res es 0nlly re6 0n re6i irred wh when en C0 C0% % wel weldi ding ng is to be s sed ed..

Whi hicch o$ the the $ollowing des destrctive tests is not nor orm mally re6ired $or welder approval test $or mild steel' a)  b) c) d)

1

-osimeter 9loroscope II ; Penetrameter) Clinometer  

/nderr norm /nde normal al con contr trac actt cond condit itio ions ns== weld weld pro proce ced dre re app appro rova vall test testss $or $or pipe pipe wor" are: a)  b) c) d)

?

Ponds per s6are inch 7oles ,ewtons per s6are millimeter  ,one o$ the above

he prevention o$ porosity he prevention o$ crac"ing he enhancement o$ arc voltage heir ease o$ arc starting

9or wh whic ich h o$ th thee $oll $ollowi owing ng is is pre preh hea eati ting ng mos mostt li"e li"ely ly to to be re re6 6ir ired ed'' a)  b) c) d)

Astenitic stainless steels !igh strength alloy steels #ow and medim strength steels #ow carbon steels

 Page 2 of 32

a)  b) c) d) 8

he sa he sall met metho hod d o$ ass asses essi sing ng the the sen sensi siti tivi vity ty o$ o$ rad radio iogr grap aph h is by by mea means ns o$ o$ a: a)  b) c) d)

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@end test 2acro e&amination Impact tests 9ractre tests

!ydr !y droge ogen n cont contro roll lled ed ele elect ctro rode dess were were de deve velo lope ped d prin princi cipal pally ly $o $or: r: a)  b) c) d)

11

2andatory -epend pon site and weather conditions -epe -e pend nden entt pon pon the the con contr trac acto tor> r>ss con$ con$id iden ence ce in in his his proc proced edr res es 0nlly re6 0n re6i irred wh when en C0 C0% % wel weldi ding ng is to be s sed ed..

Whi hicch o$ the the $ollowing des destrctive tests is not nor orm mally re6ired $or welder approval test $or mild steel' a)  b) c) d)

1

-osimeter 9loroscope II ; Penetrameter) Clinometer  

/nderr norm /nde normal al con contr trac actt cond condit itio ions ns== weld weld pro proce ced dre re app appro rova vall test testss $or $or pipe pipe wor" are: a)  b) c) d)

?

Ponds per s6are inch 7oles ,ewtons per s6are millimeter  ,one o$ the above

he prevention o$ porosity he prevention o$ crac"ing he enhancement o$ arc voltage heir ease o$ arc starting

9or wh whic ich h o$ th thee $oll $ollowi owing ng is is pre preh hea eati ting ng mos mostt li"e li"ely ly to to be re re6 6ir ired ed'' a)  b) c) d)

Astenitic stainless steels !igh strength alloy steels #ow and medim strength steels #ow carbon steels

 Page 2 of 32

1%

2anal metal arc arc welding o$ low all alloy stee steells is more li"ely to be  per$ormed with: a)  b) c) d)

13

which whic h o$ th thee $oll $ollowi owing ng de$ de$ec ects ts is is mor moree comm common on to to weld weld dep depos osit ited ed by by the the C0% welding process than weld deposited by manal metal arc' a)  b) c) d)

1

Weld metal crac"s !AD crac"s #amellar tearing Porosity

Which Whic h o$ the the $ollo $ollowi wing ng is is li"e li"ely ly to giv givee the the highe highest st imp impac actt stre streng ngth th in in $erritic weld metal' a)  b) c) d)

18

/nder ct Porosity ngsten inclsions #inear misalignment

Which Whic h o$ the the $ol $ollo lowi wing ng can can ari arise se $ro $rom m copp copper er inc incl lsi sions ons is a $er $erri rite te ste steel el weld' a)  b) c) d)

14

Slag inclsion (&cess penetration #ac" o$ side $sion ngsten inclsions

Which Whic h de$e de$ect ct wol wold d yo yo e&pe e&pect ct to obt obtai ain n in I IB B weld weldss in in non nondeo deo&i &idi die ed d steel' a)  b) c) d)

1

+tile electrodes Celllosic (lectrodes Iron powder electrodes @asic hy hydroge gen n co controlled ele electrodes

Celllosic electrodes Sbmerged arc with acid $l& Spray trans$er Co%welding @asi @a sicc co coat ated ed no norm rmal al met etal al ar arcc el elec ectr trod odes es

Which Whic h o$ the the $ol $ollo lowi wing ng met metho hods ds o$ o$ ,- ,- wol wold d be mos mostt li"e li"ely ly to to dete detect ct lac" o$ side $sion in $erritic steel welds'  Page 3 of 32

a)  b) c) d) 1<

*o sspected that $erritic steel plates= which have been edge= prepared contain crac" in the prepared edges. Which ,- method wold yo se to chec" this' a)  b) c) d)

1?

In improving resistance to stress corrosion crac"ing In dimensional stability a$ter machining improving In lowering the pea" residal stress In so$tening the steel

What is the ma&imm hardness sally recommended $or the !AD o$ a medim strength $erritic steel weld' a)  b) c) d)

%%

#inear slag inclsions /nder cts 0verlap #inear misalignment

Stress relie$ is not help$l in one o$ the $ollowing cases. Which one' a)  b) c) d)

%1

+adiography 2agnetic particle Penetrants /ltrasonic $law detector 

Which o$ the $ollowing de$ects do yo not e&pect to $ind by visal e&amination o$ completed welds' a)  b) c) d)

%

Penetrants 2agnetic particles +adiography /ltrasonic $law detector 

1 -P !v 3 -P !5  -P !v 8 -P !v

What e$$ect to midthic"ess lamination in steel plate normaly have when they are located within a weld !AD' a)  b) c) d)

Case lamellar tearing 9se together to $orm a bond A$$ect the weld metal composition Case internal tearing on a microscale

 Page 4 of 32

%3

When hydrogen control is speci$ied $or a manal metal arcwelding  proEect the electrode wold normally be: a)  b) c) d)

%

*o wold with certainty recognie a hydrogen controlled $l& covered electrode $rom its: a)  b) c) d)

%

It is too e&pensive he wire wold be too thic"  he weld metal composition may be wrong he wire is too short

When open site wor"ing= serios porosity in manal metal arc welding is  broght to yor attention. What wold yo investigate' a)  b) c) d)

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Concrete shttering welding team Pipe welders Plater welders Plant maintenance welders

*o noticed manal metal arc welding electrodes= stripe o$ $l&= are being sed as $iller wire= $or IB welding. *o wold obEect becase: a)  b) c) d)

%8

Color #ength rade name AWSF@S43? Code #etter  

When manal metal arc welding is being carried ot on an open constrction site= which grops o$ welder are most li"ely to re6ire continos monitoring' a)  b) c) d)

%4

Celllosic Iron o&ide Acid @asic

(lectrode type Power plant type (lectrode storage -ay temperatre

he steel composition in strctral contract is changed $orm .1G carbon= .4G manganese= to .%G carbon= 1.%G manganese. 2ight this in$lence the incidence o$:  Page 5 of 32

a)  b) c) d) %?

3

0ne o$ the $ollowing alloys is nonmagnetic= Which' a) .G Chromim molybdenm  b) 1%.G Chromim c) Astenitic Stainless Steel d) ?.G ,ic"el Steel When the IB welding Astenitic Stainless Steel pipe. Argon gas bac"ing is called $or. his is to: a)  b) c) d)

31

#eg length Actal throat thic"ness Weld width

9or open site manal metal arc welding the $ollowing e6ipment is available. Which wold yo choose $or sa$e wor"ing' a)  b) c) d)

3

Scattered porosity Worm hole porosity Parent metal crac"ing #ac" o$ penetration

I, /H practice= @S ?? Part% speci$ies that the drawing dimension 6oted $or a $illet weld is the: a)  b) c)

33

Prevent o&idation Prevent nder bead crac"ing Prevent porosity Control the penetration bead shape

Preheating a carbon steel manal metal arc welding is carried ot to minimie the ris" o$  a)  b) c) d)

3%

Porosity Crac"ing in the weld area /nder ct $or $illet welds #ac" o$ root $sion de$ects

Single operator trans$ormer  2lti operator trans$ormers ACF-C composite power nit -iesel engine driven motor generator 

I$ sbmerged welding to be sed to ma"e btt welds= which wold yo be most critical o$: a)

he root gap tolerance  Page 6 of 32

 b) c) d) 3

-ring C0% welding= the arc length is most li"ely to be a$$ected by: a)  b) c) d)

34

he s"ill o$ the welder   he 6ality o$ the materials he nondestrctive procedres he man$actring methods

A $abricating procedre calls $or $illet welds to be blended in by grinding. his is to in$lence: a)  b) c) d)

3?

he weld cold be hard and brittle he weld metal cold be too so$t here will be no e$$ect on the weld he weld have nder ct

A welder 6ali$ication test is o veri$y: a)  b) c) d)

3<

Assembly welding only Assembly and tac" welding 7oint over % mm thic" only Crci$orm welds only

*o see a welder sing o&yacetylene $lame with along $eathered inner cone. What wold be the e$$ect o$ this on carbon steel' a)  b) c) d)

38

he wire diameter   he crrent retrn connections he gas $low rate he torch to wor" angle

Pre heating $or arc welding applies to: a)  b) c) d)

34

he angle o$ penetration he root $ace width he gas ct $inish

!AD crac"ing 9atige li$e +esidal stresses *ield strength

@end test specimens have been ta"en $rom a % mm thic" carbon steel btt weld. Which wold show lac" o$ interrn $sion: a)

Side bend  Page 7 of 32

 b) c) d) 

#amellar tearing has been occrred in steel $abrication. @(90+( welding cold it have been $ond by: a)  b) c) d)

1

Arc voltage Crrent WireFelectrode $eed rate 2etal brno$$ rate

In 22A welding= what parameter is sed $or the control penetration into the base material' a)  b) c) d)



Permit it to proceed Permit it to proceed with $me e&traction Stop the operation at once Advise the welder to drin" mil" and proceed

What two $nctions in arc welding mst be in e6ilibrim to enable a stable arc to be established' a)  b) c) d)

3

ray e&amination -ye penetrant /ltrasonic inspection It wold not have been $ond by any inspection method

*o are to over see arc welding o$ some machine $ittings and $ind they are cadmim plated. What yo: a)  b) c) d)

%

+oot bend 9ace bend Bided bend

5oltage Welding speed Iron powders in the coating Crrent

In the welding o$ btt Eoint $rom one side= which o$ the $ollowing controls the pro$ile o$ the root bead' a)  b)

+oot 9ace @evel Angle  Page 8 of 32

c) d) 

What type o$ power sorce characteristic is re6ired $or manal welding' a)  b) c) d)

4

2olybdenm Chromim itanim Carbon

In 2ABFC0% welding= which parameters give the greatest control o$ weld appearance dring dip trans$ers or shortcirciting welding' a)  b) c) d)



Case corrosion Problems Bive o$$ Phosgene Bas #eave +esides All o$ the Above

Which o$ the $ollowing chemical elements has the greater e$$ect on the harden ability o$ a steel plate' a)  b) c) d)

?

2acro ,ic" brea"  !ardness Charpy vee notch

-egreasing components are essential $or 6ality welding bt some agents may: a)  b) c) d)

<

Constant voltage 9lat Characteristic -rooping Characteristic 2otor Benerator  

Which o$ the $ollowing destrctive tests wold indicate the toghness o$ weld metalFparent metal J !AD. a)  b) c) d)

8

+oot Bap 0ne o$ the above

Wire sic"ot length Amperage Wire $eed speed Indctance

In 22A welding= the slag prodced can be varied to sit the welding  positionK which type o$ slag wold be re6ired $or welding in the !5  position' a)

9lid  Page 9 of 32

 b) c) d) 1

%

he weld metal deposits o$ manal metal arc electrode achieves its mechanical strength throgh' a) he core wire  b) he $l& coating c) Iron powder with the $l& coating What constitent is needed in coating o$ electrode o$ an electrode to  prevent $ormation o$ porosity in welding o$ rimming steel' a)  b) c) d)

3

Prevent $ormation o$ porosity in the weld Prevent brnthrogh in the root rn Prevent o&idation o$ the rood bead (liminate the $ormation o$ !%

In ray the 6ality o$ the radiograph negative is assessed by the' a)  b) c) d)

4

-ctility oghness 9atige strength 2echanical strength

In the welding o$ Astenitic pipe wor"= the borer is sally prged with Ar to' a)  b) c) d)



Iron powder Calcim $loride Silicon Calcim carbonate

Welds made with high heat inpts show a redction in one o$ the $ollowing properties' a)  b) c) d)



5iscos ,one o$ the above Semi $lid

-ensity o$ the 9ilm II indicator  H5A available Stando$$ distance

A steel described= as  will have improved tensile properties it has' a)  b) c)

!ad control o$ chemical composition @een heat treated @een 6ality tested  Page 10 of 32

d) 8

Which one o the $ollowing steels wold give rise to the $ormation o$  porosity when atogenosly welded with an arc process' a)  b) c) d)

<

Crac"ing I the !AD he $ormation o$ chromim carbides Crac"ing in the weld metal -istortion

Sbmerged arc $l&es can be spplied in two $ormsK thses are' a)  b) c) d)

4%

!ydrogen control is needed Iron powder in the electrode !igher arc voltage can be obtained Shorter arc length can be achieved

In the welding o$ Astenitic stainless steels= the electrode and plate material can be prchased with low carbon contents. he reason $or this is to prevent' a)  b) c) d)

41

Ins$$icient $l& melting (&cessive $l& melting Slag removal di$$iclties Spatter

he se o$ celllosic electrode is o$ten made when welding the root pass o$ pipes in the $ield. his is becase' a)  b) c) d)

4

9lly "illed steel Semi "illed steel +imming steel 9ine grained steel

In sbmerged arc welding= the se o$ e&cessively high voltage wold reslt in' a)  b) c) d)

?

@een vacm melted

Sintered and agitated Agitated and $sed Crshed and agglomerated 9sed and agglomerated

In a steel= which has improved creep properties at elevated temperatre= which one o$ the $ollowing elements helps in this improvement' a)  b)

ngsten 2anganese  Page 11 of 32

c) d) 43

Welding a steel plate o$ C( o$ . wold re6ire preheating to' a)  b) c) d)

4

ses

the

L"eyholingM

9riction welding -i$$sion bonding (lectron beam welding Atogenos IB welding

#i6id state Solid state Plastic state (lastic state

!ave poor pro$ile !ave larger grain sie !ave high hardness in the !AD !ave low elongation properties

In a tensile test= a brittle material wold be indicated i$ the $ractre sr$ace' a)  b) c) d)

4<

processes

Welding procedres may re6ire welds to be deposited at a controlled rate heat inpt. !igh heat inpts wold' a)  b) c) d)

48

$ollowing

In $riction welding= is the metal at the inter$ace in the' a)  b) c) d)

44

Prevent the $ormation o$ slphides Prevent hardening in the !AD Prevent the $ormation o$ carbides o improve mechanical properties in the weld

Which o$ the  system o$ $sion' a)  b) c) d)

4

2olybdenm Carbon

Shows redction in sie Is $lat and $eatreless @rea"s in the weld metal @rea"s in the parent material

What destrctive test wold be re6ired to ascertain the li"elihood o$ crac"ing in the !AD o$ a weld' a)  b) c)

,ic" brea"   Side bend test Charpy inpt  Page 12 of 32

d) 4?

In sbmerged arc welding= e&cessive arc voltage may case' a)  b) c) d)

8

(&cessive root $ace width (&cessive root gap sie #ow crrent setting @oth A N C

Incomplete root $sion weld certainly be cased by: a)  b) c) d)

8

@e$ore= dring and a$ter welding activities @e$ore welding activities only A$ter welding activities only ,one o$ the above

Incomplete penetration in a btt Eoint cold be cased by: a)  b) c) d)

83

@S