cswip-reviewer- day 3 home work.xls

8/9/2019 Cswip-Reviewer- DAY 3 HOME WORK.xls

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Total Score = 29

d 1.0 When hydrogen control is specified for MMA welding, what type of electrode would normally be

a. Cellulosic

b. Rutile

c. Acidic

d. asic

c !.0

a. "ensile testing

b. #illet fracture testing

c. $mpact toughness testing

d. "he electrical characteristic of a power source

a %.0 What is meant by the term specification?

a. A document that prescribes the re&uirements with which the product or ser'ice has to conf

b. A set of guidelines recommending practices and proceduresc. A general term gi'en to all normati'e documents

d. A written description of the e(act steps to be followed in manufacturing a product

d ).0 A cellulosic, MMA electrode could be identified from the*

a. Colour of the flu( co'ering

b. +ength of the electrode

c. "rade name of the electrode

d. AW-/ classification

d .0 What is meant by the term minimum interpass temperature?a. Minimum post weld heat treatment temperature

b. Minimum stress relief temperature

c. "he lowest temperature allowed during welding and between weld passes

d. "he lowest temperature to be used during preheat

c 2.0 "he heat input during a fusion welding process*

a. 3oes not affect the grain structure of the material unless it is 'ery high

b. Must be high as possible to a'oid lac4 of fusion

c. Affects the width and metallurgy of the 5A6

d. Must be 'ery low to a'oid grain growth

c 7.0 A large grain structure in steel could produce

a. +ow ductility 'alues

b. +ow fracture toughness 'alues

c. 5igh fracture toughness 'alues

d. 5igh tensile strength

"he term Transition Temperatureis associated with8

Clear 5ide Ans. Chec4 and how Ans.


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b 9.0 What would be a typical welding defect associated with the "$: welding process?

a. lag inclusions

b. "ungsten inclusions

c. 5ydrogen crac4ing

d. olidification crac4ing

b ;.0 Which of the following are correct dimensions for the 'ee notch in a charpy specimen?

a. 3epth !.mm, included angle )0


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a. >hosphor, oint geometry and tensile stress

b. ulphur, oint geometry and tensile stress

c. 5ydrogen, oint geometry and tensile stress

d. +aminations, poor through thic4ness ductility and tensile stress

c 12.0 When M$: welding aluminum alloys in the o'erhead position which current type would normallya. A.C.

b. 3.C. negati'e

c. 3.C. positi'e

d. 3rooping

d 17.0 An electrode identified as 201% would be classified to which of the following standards-

a. / );;

b. AW A.

c. / ))0

d. AW A.1

a 19.0 Conca'e root may be caused by which of the following*

a. (cessi'e bac4 purge pressure of e(cessi'e root grinding

b. (cessi'e bac4 purge pressure and entrapped gas

c. (cessi'e heat inputs or too small a root face

d. (cessi'e heat inputs and high tra'el speeds

d 1;.0 $ncomplete root penetration in a butt weld could be caused by*

a. (cessi'e root face width

b. (cessi'e root gap sie

c. +ow current settingd. oth A C

b !0.0 Which of the following is not a type of crac4?

a. #issure

b. #ish eye

c. +amellar tear

d. 5ot tear

a !1.0 According to / !!% a weld on the other side is shown by the symbol?

a. =n the dashed identification lineb. elow the reference line

c. =n the solid line

d. Abo'e the reference line

c !!.0 According to AW A.1 which of the following MMA-MAW electrodes would be classified as ru

a. 2010


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b. 7019

c. 201%

d. ;011

b !%.0 Which of the following best describes the elastic limit?

a. "he resistance to fracture under impact loadingb. "he ma(imum stress a material can be subected to without permanent deformation

c. "he point at which the material fails

d. "he ability of a material to stretch and become permanently deformed without brea4ing or

a !).0 Which of the following butt weld preparations is usually susceptible to lac4 of side wall fusion du

a. A double D butt weld.

b. A single @ butt weld.

c. A double @ butt weld.

d. +ac4 of side wall fusion is not a problem with MMA welding

b !.0 What is the 5eat Affected 6one E5A6F?

a. $t is the melted portion of the parent material

b. $t is the area adacent to the weld metal which has undergone micro structural change

c. $t is the weld area plus the parent material which has undergone micro structural change

d. $t is the area of the lowest tensile strength in the weld region

d !2.0 What could Carbon &ui'alent @alues EC@F be used for?

a. Assses the ris4 of lamellar tearing

b. stimates the need for >W5"

c. Calculate 5A6 toughness.

d. 3etermine the preheat to be used

d !7.0 Which of the following statements is true?

a. lectrode d.c. positi'e produces a deep narrow weld pool

b. Rutile means calcium carbonate

c. >orosity is always repaired

d. 3.C. electrode positi'e is used for MA: welding steel

c !9.0 "he term duty cycle refers to what?

a. "he shift pattern of inspection staff

b. A safety rating gi'ing output capability of welding e&uipmentc. A safety rating gi'ing heat input capability of welding e&uipment

d. Component life e(pectancy

d !;.0 Which of the following defects would not normally be detected by radiography?

a. ! mm by ) mm long centerline crac4 in the weld root

b. !00 mm long lamination


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c. 10 mm deep lac4 of side wall fusion

d. 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 weldc. 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 arcd. All of the abo'e

c %2.0 #or a gi'en 'oltage and current setting on a constant output power source, when the arc length

a. "he current will decrease the 'oltage will increase

b. "he tra'el speed will increase the current will decrease

c. "he current will increase the 'oltage will decrease


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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 materiald. 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. =neb. "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 bac4 step method of welding could be used to control8

a. Weld profile

b. >enetration

c. Dndercut

d. 3istortion

)%.0 Autogenous welding means?

a. #ully automated

b. #usion welding with filler wire

c. #ully mechanied

d. #usion welding without filler wire


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)).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. 11. mm

b. 10 mm

c. 1! mm

d. 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'ersec. 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;


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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 areasd. 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. asicb. #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


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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 basicc. 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


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a. Control root penetration

b. >re'ent root bead porosity

c. $mpro'e positional welding

d. >re'ent o(idation of the weld root

22.0 $n a martensitic grain structure which of the following mechanical properties would be more li4ela. 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 ductil ity

c. 3ecrease in hardnessd. 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. :ammab. 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


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b. 5oop

c. +ongitudinal

d. owing

7%.0 Complete the sentence to ma4e a true statement

a. G..must always be dressed to reduce stress raisers

b. G..must always o'erlap onto the e(ternal surface of the plate or pipe by at least 1.mmL

c. G..must always be chec4ed by /3"L

d. 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 !00reheat prior to welding*

a. Must always be carried out on steels

b. /eed not be carried out if >W5" is to follow weldingc. 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


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c. Constant 'oltage

d. Constant pulsing

1%0.0 =n an electrode classified to / );; as )! % , the figure % would represent*

a. trength elongation properties

b. $mpact propertiesc. 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 aa. 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. / )97!

b. / );;


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c. / !97

d. / 71;

1%7.0 =n an electrode classified to / );; as )! % the )! would indicate?

a. )!0 /-mm! min yield strength

b. )! Ioules %0


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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. #latc. 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 termeda. "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


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used?

orm


23/43

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-


24/43

be used?

tile?


25/43

rac4ing

ring manual metal arc welding process?


26/43

und the welding cableGG

mechanism as the contracts after welding*

is shortened*


27/43

ure was within a specified range?


28/43

uld indicate?

of welds?


29/43

the MMA process?

ha'e what type of profile?

ue?


30/43

ation with good arc stability would be*

arameters?

is to


31/43

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?


32/43

y*

manganese


33/43

rac4 mechanisms, as the weld contracts?

safe practice because8

uctance control is to reduce*

ing process?

hat?


34/43

he *

ght hand side of fillet weld symbols indicate?

ral change


35/43

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?


36/43

c4 carbon steel butt weld?


37/43


38/43

short trans'erse direction of the parent material

cess?


39/43

orm

lding procedure appro'al in DO?

*


40/43

high tensile strength materialEthe specification does not reference arc stri4esF

tration when MA: welding carbon steels?


41/43

he MMA welding process?

er /3" methods*

correct?


42/43


43/43

Answer 4ey

1.0 d !2.0 d 1.0 b 72.0 c 101.0 c 1!2.0 b

!.0 c !7.0 d !.0 a 77.0 a 10!.0 b 1!7.0 b

%.0 a !9.0 b %.0 d 79.0 b 10%.0 a 1!9.0 d

).0 d !;.0 b ).0 c 7;.0 c 10).0 c 1!;.0 a

.0 c %0.0 d .0 b 90.0 d 10.0 c 1%0.0 b2.0 c %1.0 a 2.0 d 91.0 b 102.0 b 1%1.0 c

7.0 b %!.0 b 7.0 a 9!.0 c 107.0 c 1%!.0 b

9.0 b %%.0 b 9.0 b 9%.0 a 109.0 a 1%%.0 c

;.0 b %).0 a ;.0 b 9).0 c 10;.0 c 1%).0 b

10.0 c %.0 c 20.0 a 9.0 c 110.0 a 1%.0 c

11.0 b %2.0 c 21.0 c 92.0 a 111.0 b 1%2.0 c

1!.0 d %7.0 b 2!.0 d 97.0 b 11!.0 b 1%7.0 a

1%.0 a %9.0 c 2%.0 d 99.0 a 11%.0 a 1%9.0 c

1).0 a %;.0 b 2).0 b 9;.0 d 11).0 a 1%;.0 c

1.0 b )0.0 c 2.0 d ;0.0 d 11.0 c 1)0.0 d

12.0 c )1.0 c 22.0 b ;1.0 d 112.0 d 1)1.0 b

17.0 d )!.0 d 27.0 c ;!.0 b 117.0 c 1)!.0 a19.0 a )%.0 d 29.0 c ;%.0 b 119.0 c 1)%.0 d

1;.0 d )).0 b 2;.0 d ;).0 a 11;.0 c 1)).0 c

!0.0 b ).0 a 70.0 c ;.0 c 1!0.0 c 1).0 b

!1.0 a )2.0 b 71.0 c ;2.0 b 1!1.0 c 1)2.0 c

!!.0 c )7.0 d 7!.0 c ;7.0 a 1!!.0 c 1)7.0 d

!%.0 d )9.0 b 7%.0 d ;9.0 b 1!%.0 c 1)9.0 a

!).0 a );.0 d 7).0 d ;;.0 c 1!).0 c 1);.0 c

!.0 b 0.0 c 7.0 c 100.0 c 1!.0 a 10.0 d

cswip-reviewer- day 3 home work.xls

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