aws-cwi some question (2)

8/20/2019 Aws-cwi Some Question (2)

1/49

Term 1

The ef f ective throat of a complete

enetr ation roove weld shall be

Definition 1

The thickness of the thinner part

oined

Term 2

When welding lengthwise connecting

two round bar s, the pr oper symbol

would be

Definition 2

Flare V Gr oove weld

Term 3

Fillet welds may be used to connect

skewed T joints provided the plates

are set at an angle of not less than

Definition 3

30°


2/49

Term 4

The minimum thickness f or a plug

weld in mater ial 1" thick shall be

Definition 4

5/8"

Term 5

Welding shall not be done when:

Definition 5

When ambient temper ature is lower

than 0°F or

Surfaces are wet or exposed to r ain,

snow, or

high wind or When welder s ar e

exposed to in-

clement conditions.

Term 6

When ambient temperature is lower

than 0°F or

Sur f aces are wet or exposed to r ain,

snow, or

high wind or When welder s ar e

exposed to in-clement conditions.

Definition 6

AWSA5.17 & A5.23


3/49

Term 7

When welding 5/16" plate in the f ield, a

welder must be cer tified f or

Definition 7

Structural

Term 8

Re-entrant copes shall have a

minimum radius of :

Definition 8

1"

Term 9

Where tight f it of intermediate

stif f ener s is specif ied, it shall be

def ined as allowing a gap of up to

Definition 9

1/16"


4/49

Term 10

Spatter is caused by

Definition 10

Welding current too high or arc length

too long

Term 11

In order to insur e sound welds at the

ends of a joint. The f ollowing shall be

used

Definition 11

Extension bars & r unoff plates

Term 12

In repairing cracks in a weld, r emove

the cr ack and sound weld metal how

f ar beyond each end of the cr ack

Definition 12

2"


5/49

Term 13

The r emoval of slag f rom a deposited

weld bead is:

Definition 13

Mandator y

Term 14

What electrodes have low hydr ogen

coating?

Definition 14

Electrodes ending 5, 6, or 8.

Term 15

With which process would an ER70S-X

electrode be used

Definition 15

G AW


6/49

Term 16

Oven stor age of low hydr ogen

electrodes is:

Definition 16

To avoid damage by atmospher ic

moisture

Term 17

Welded joints not pre-qualified shall

be:

Definition 17

Qualif ied

Term 18

Welder cer tif ication ma be waived by

Definition 18

No one


7/49

Term 19

Peening is not permitted on

Definition 19

Root and surface layer s of welds

5.27

Term 20

The suggested minimum nominal

thickness of backing bars f or SMAW

process is

Definition 20

3/16

Term 21

Pre-heat and inter pass temperatures

must be sufficient to

Definition 21

Pr event cr ack formation


8/49

Term 22

Low hydrogen electr odes exposed to

the atmospher e f or longer per iods

then that permitted by codes shall be £

redried no more than

Definition 22

One time

Term 23

The minimum ef f ective length of a f illet

weld shall be:

Definition 23

Over all length of full size f illet including

boxing

Term 24

Caulking of welds; What is it and is it

permitted

Definition 24

Caulking of welds is to plastically

def orm weld or base metal surfaces to

seal or obscure discontinuities as

undercut, piping por osity, pin holes,

cracks, etc. Caulking is not per mitted

on mostmetals.


9/49

Term 25

In gas metal arc welding the electr ode

is:

Definition 25

Consumable

Term 26

The ef f ective area of a f illet weld is:

Definition 26

The ef fective weld length X the

effective thr oat.

Term 27

The minimum length of an inter mittent

f illet weld shall be:

Definition 27

1 1/2"


10/49

Term 28

The 'U' in joint designation TC-U9a

ref ers to:

Definition 28

Metal thickness, U = Unlimited

Term 29

Ar c str ikes outside the ar ea of

permanent welds should be:

Definition 29

Avoided

Term 30

Base metal specification may be f ound

in:

Definition 30

ASTM


11/49

Term 31

Information regarding back gouging of

roots in a single bevel groove weld

without backing is found in footnote

section:

Definition 31

Note 4

Term 32

What is the required root opening f or

the SMA welded CJP single-U-gr oove

weld:

Definition 32

0 to 1/8"

Term 33

When spacers are used in the double-

bevel groove weld, the weld is not to

be complete until:

Definition 33

Spacer removed by gouging to sound

metal be-f ore welding second side.


12/49

Term 34

The size of the spacer for double-V

groove weld using a 30° bevel and

welded in the over head position shall

be:

Definition 34

1/8" X 3/8"

Term 35

What is the r equir ed root opening for a

single-V-gr oove weld to a back-up

strip welded in the vertical position

at 20° angle:

Definition 35

1/2"

Term 36

A single J-gr oove weld prepar ation in

the hor izontal position shall be made

with SMAW & groove angle of :

Definition 36

45°


13/49

Term 37

What is the root opening f or a partial

joint penetration square groove weldbutt oint of material 1/4" thick:

Definition 37

1/8"

Term 38

A break in the ar r ow shaf t in the

symbol in the single bevel gr oove weld

indicates:

Definition 38

Which plate to chamf er

Term 39

What is the maximum base metal

thickness in a single bevel groove

weld:

Definition 39

U = Unlimited


14/49

Term 40

What is the included angle of

prepar ation for the double-V-grooveweld. Usin a s acer and a 1/2" root

Definition 40

20°

Term 41

In an E70 1 8 electr ode, what does the

E designate

Definition 41

Electrode

Term 42

Befor e welding a joint, the surf aces to

be welded shall be free of what?

Definition 42

Scale, slag, rust, moisture, grease, etc.


15/49

Term 43

If a welder is qualif ied by testing in 3/8

inch thick tubular str uctur al steel in the

6-GR position CJP using a

E701 8 electr ode, is the welder

qualif ied to weld a PJP on 1 inch thick

Str uctur al Steel plate in the vertical

down

osition?

Definition 43

NO

Term 44

It is usually good pr actice to oscillate

which of the mild steel SMAW

electrodes

Definition 44

E6010 & E6011

Term 45

The E7024 electrode may be used in

what positions?

Definition 45

Flat and horizontal


16/49


17/49

Term 49

Which welding process would an

E70T-X electr ode be used with?

Definition 49

FCAW

Term 50

Single bevel gr oove, with 45° angle

and backing, the root opening must be

what?

Definition 50

1/4"

Term 51

The maximum size of a f illet weld in the

f lat position, and in one pass shall be

how much?

Definition 51

3/8"


18/49

Term 52

Continuous solid wire electr ode (

E70S-X ) used in semi-automatic

welding would be used in which

r ocess?

Definition 52

G AW

Term 53

Members distorted by welding may bestraightened by application of limited

amounts of localized heat. The

temper ature of heated ar eas as

measur ed by approved methods shall

not exceed how much for Quenched

and

tempered ( Q. & T.) steel nor how much

f or other steels.?

Definition 53

Q&T1100°F, Other 1200°F

Term 54

What is the minimum thickness of

mater ial to be used f or weld washer s?

Definition 54

0.05"


19/49

Term 55

When parts are to be fillet welded, in a

lap joint of material under 3" thick the

allowable separation of faying

sur f aces shall not exceed how much?

Definition 55

3/16" Max

Term 56

The maximum size electr ode allowed

for the r oot pass of an overhead f illet

weld is what diameter?

Definition 56

5/32"

Term 57

What is the maximum per mitted carbon

equivalent for r einfor cing steel that

may be welded without pr ior

qualif ication

tests?

Definition 57

0.65 %


20/49

Term 58

The fir st 7 in the E71T-7 designates

what?

Definition 58

The tensile strength in 10,000's of psi

Term 59

The last digit "7" in E7027 designates

what?

Definition 59

Type of f lux coating on electrode - Ir on

powder /

Ir on oxide; & type of cur rent used - AC

or

DCEN.

Term 60

When welding a f lat fillet r oot pass, the

largest allowable electrode is what

diameter?

Definition 60

3/16"


21/49

Term 61

The "S" in E70S-3 designates what?

Definition 61

GMAW - Solid wire electrode

Term 62

The digit "1" in E7018 indicates that

welding is to be in what positions?

Definition 62

All positions

Term 63

Which of the SMAW electrodes has an

iron powder and iron oxide cover ing?

Definition 63

SMAW mild steel electr odes where last

digit is

"7", ie. E6027


22/49

Term 64

The E6011 electrode will give more

penetration than all other SMAWelectrodes exce t what?

Definition 64

E6010only

Term 65

The "60" in E6011 indicates what

Definition 65

60,000 psi Tensile strength

Term 66

The ef fective throat thickness of a f illet

weld is computed by measuring the

shor test distance between what two

points?

{AW

Definition 66

The r oot to the f ace


23/49

Term 67

Low hydrogen shielded metal arc

electrodes shall be protected from

moisture. The E70XX low hydrogen

electrodes

shall be r eturned to an oven within

what period of time?

Definition 67

4 hours

Term 68

In butt weld r oot pass in the horizontal

position,the thickness of weld metal

that may be built up behind the ad-

vancing ar c shall be how lar ge?

Definition 68

5/16"

Term 69

Between "Str uctur al Welding Code -

Steel" Dl.l and "Structural Welding

Code - Sheet Steel" D1.3, there is M

a metal thickness overlap of the

minimum f or Dl.l and the maximum for

D1.3. How much overlap of metalthickness is ther e?

Definition 69

0.055 = approx. 1/16 inch.


24/49

Term 70

Even if prior qualification is made,

what is the maximum per mitted carbon

equivalent f or r einf orcing steel that

is to be welded?

Definition 70

0.75%

Term 71

In which positions is 1/2" the maximum

size allowed for a fillet weld made in

one pass?

Definition 71

Ver tical

Term 72

Using DC straight polar ity, the

electr ode is which; . . . . positive,

negative or neutr al

Definition 72

Negative


25/49

Term 73

The minimum pr eheat and interpass

temper ature for ASTM A572 grade 60

str uctur al steel 2" thick welded with ™

SMAW rocess is how much?

Definition 73

225°F

Term 74

The minimum pr eheat and interpass

temperature for structur al steel 1/2"

welded with the SMAW process and

an electrode other than Low Hydr ogen

is how much?

Definition 74

32°F

Term 75

The largest electrode per mitted when

welding in the f lat position is what

diameter

Definition 75

5/16"


26/49

Term 76

E7018 electr odes are used with what

type of welding cur r ent

Definition 76

AC & DCEP

Term 77

Should back-up str ips or bar s be

removed f r om all welds? Explain

Definition 77

No; Not mandator but per missible

Term 78

Shielded metal ar c electr odes with low

hydrogen cover ing shall be kept dr y in

storage ovens. Low hydr ogen

electr odes of the E80XX ser ies when

taken from the oven shall be used

within what per iod of time?

Definition 78

2 hours


27/49

Term 79

Except f or root pass, the lar gest

electr ode permitted f or out of positionweldin is what diameter

Definition 79

1/4

Term 80

Rever se polar ity means that the

electr ode is which; .. . positive,

negative or netural ?

Definition 80

Positive

Term 81

What does "CJP" in the tail

specif ications par t of a weld symbol

mean?

Definition 81

Complete Joint Penetr ation


28/49

Term 82

What kind of metal is classified as

6061-T6?

Definition 82

Aluminum

Term 83

Saf ety precautions shall conf or m to

the latest edition of what specif ication

published by the Amer ican Welding

Society?

Definition 83

ANSI/AWSZ49.1

Term 84

If the tensile strength of a single pass

weld made with an E6010 electrode is

60,000 p.s.i. what would the tensile

strength of a six pass weld be?

Definition 84

60,000 psi


29/49


30/49

Term 88

The minimum thickness of a plug or

slot weld in 3/8" plate is how much?

Definition 88

3/8"

Term 89

The lar gest size of crater permitted and

lef t at the end of a weld is how much?

Definition 89

No crater of any size is allowed

Term 90

A fillet weld when measured f or size

shall be measur ed how?

Definition 90

Leg length of the largest inscribed

isosceles r t.

triangle


31/49


32/49

Term 94

which is most general of the f ollowing

terms: code, standard, specif ication?

Definition 94

standard

Term 95

ASME B31.1 & B31.3 cover what

subjects?

Definition 95

B31.1 covers pressure vessels and

power piping, B31.3 cover s chemical

process piping

Term 96

Inter pass temper atures ar e measured

what distance from the joint?

Definition 96

1"


33/49

Term 97

What topics ar e cover ed by ASME

Boiler and Pressure Vessel Codesections V, VIII, & IX?

Definition 97

V covers nondestructive examination;

VIII covers Unf ired Pressure Vessels,

and IX covers Welding and Br azing

Qualif ications

Term 98

In structural applications, when the

metal thickness is less than 1/8", what

AWS code applies?

Definition 98

AWS D1.3 - sheet metal

Term 99

Fillet welds may be measur ed using a

tolerance of :____

Definition 99

-1/32"


34/49

Term 100

is the name of the document that

prescribes the details of how a weldmust be erf or med.

Definition 100

WPS - Welding Procedure

Specif ication

Term 101

When it is impractical f or the welding

inspector t witness all tests and

observe all welds during production,

what kind of inspection results?

Definition 101

random-partial

Term 102

the welding inspector is responsible

for judging acceptability of a product

in accor d with what?

Definition 102

a written document


35/49

Term 103

which code choices are available for

taking AWS QC1 CWI/CAWI exams?

Definition 103

AWS D1.1; API 1104; AWS D1.2

(structural aluminum); AWS D1.5

(Bridge); AWS D15.1 (Railr oad); ASME

VII & IX; ASME IX, B31.1, & B31.3

Term 104

AWS D1.1 specif ies that

nondestructive testing must be

performed by an individual qualif ied in

accor dance with what document?

Definition 104

SNT-TC-1a

Term 105

ASME B31.1 & B31.3 cover what

subjects?

Definition 105

B31.1 covers pressure vessels and

power piping, B31.3 cover s chemical

process piping


36/49

Term 106

Inter pass temper atures ar e measured

what distance from the joint?

Definition 106

1"

Term 107

welding symbols are def ined in what

publication?

Definition 107

AWS A2.4

Term 108

What topics ar e cover ed by ASME

Boiler and Pressure Vessel Code

sections V, VIII, & IX?

Definition 108

V covers nondestructive examination;

VIII covers Unf ired Pressure Vessels,

and IX covers Welding and Br azing

Qualif ications


37/49

Term 109

In structural applications, when the

metal thickness is less than 1/8", whatAWS code a lies?

Definition 109

AWS D1.3 - sheet metal

Term 110

which code choices are available for

taking AWS QC1 CWI/CAWI exams?

Definition 110

AWS D1.1; API 1104; AWS D1.2

(structural aluminum); AWS D1.5

(Bridge); AWS D15.1 (Railr oad); ASME

VII & IX; ASME IX, B31.1, & B31.3

Term 111

for f illet welds on material gr eater than

1" thick or greater, what is the

allowable undercut? Are there

exceptions?

Definition 111

1/16", no exceptions


38/49

Term 112

in cases of dispute over welding terms,

what document pr evails?

Definition 112

AWS A3.0

Term 113

the standar d describing the

requirements for welding cr oss-

country pipeline is:

Definition 113

API 1104

Term 114

acetylene becomes unstable above

what pr essur e?

Definition 114

15psi


39/49

Term 115

saf ety tr aining is mandated under the

provisions of what agency?

Definition 115

OSHA

Term 116

Name the ending number s in the

classif ication E-70XX for low hydr ogen

SMAW electrodes

Definition 116

70X5, 70X6, 70X8

Term 117

Name the position numbers in the

classification of E-70XX SMAW

electrodes

Definition 117

701X is all positions, 702X is f lat and

horizontal only


40/49

Term 118

T or F: according to AWS D1.1, steel

backing on groove welds must becontinuous.

Definition 118

TRUE

Term 119

At what level are currents considered

"primary shock curr ents" and hence

dangerous?

Definition 119

6mA

Term 120

what is the most common ASTM

str uctur al steel? What is its minimum

yield str ength? What is its minimum

Ultimate Tensile Strength (UTS)?

Definition 120

A-36, 36ksi (36,000 psi), and 58ksi


41/49

Term 121

AWS D1.1 states that all sur f aces to be

welded and surf aces adjacent must bef r ee f r om what elements?

Definition 121

thick scale, slag, moisture, rust,

gr ease, and other foreign mater ial.

Paint & mill scale (not loose or thick)

ar e acce table

Term 122

what is the numerical designation f or

the AWS filler metal specification

"Car bon Steel Cover ed Arc Welding

Electrodes"?

Definition 122

A5.1

Term 123

what is the numerical designation f or

the AWS filler metal specification "Low

Alloy Steel Covered Ar c Welding

Electrodes"?

Definition 123

A5.5


42/49

Term 124

The Amer ican Welding Society certif ies

welding inspector s accor ding to whatdocument?

Definition 124

AWS QC1

Term 125

what topics do the sections of AWS

D1.1 cover ?

Definition 125

1) General Requir ements; 2) Design of

Welded Connections; 3)

Prequalif ication of WPSs;

4)Qualification; 5) Fabr ication; 6)

Inspection; 7) Stud Welding; 8)

Str engthening and Repair of Existing

Str uctures

Term 126

what are the two kinds of welding

inspector s defined by the AWS D1.1?

What ar e their r oles?

Definition 126

Fabr ication/Er ection (QC), and

Ver ification (QA)


43/49

Term 127

"Author ized Inspector" is a ter m

associated with what? By whator anization ar e the cer tif ied?

Definition 127

an "Authorized Inspector " is one who

has bottom-line QC responsibility; they

ar e certif ied by the National Boar d of

Boiler and Pr essure Vessel Ins ector s

Term 128

How often are new editions of the AWS

AD1.1 published?

Definition 128

every 2 years

Term 129

what does the "Code of Ethics" of the

AWS QC1 consider to be the most

impor tant obligation of a welding

inspector

Definition 129

public saf ety


44/49

Term 130

what is a TR?

Definition 130

Mater ial Test Repor t

Term 131

For mater ial less than 1" thick what is

the maximum allowable under cut in a

fillet weld? Ar e ther e exceptions?

Definition 131

1/32" exception: up to 1/16" f or any

accumulated length up to 2" in 12"

Term 132

the ter m "Contract Documents" ref ers

to what?

Definition 132

1) all applicable codes; 2) the

(structural) plans; 3) the specif ications


45/49

Term 133

what is a specification?

Definition 133

a document that descr ibes the

requirements for a particular object or com onent

Term 134

what is a weld discontinuit ?

Definition 134

an inter r uption in the typical str ucture

of the mater ial

Term 135

what is a weld defect?

Definition 135

a discontinuity or discontinuities that

r ender a pr oduct unacceptable


46/49

Term 136

what is an RFI?

Definition 136

Request For Inf ormation

Term 137

the maximum atmospheric exposur e

time allowed by AWS D1.1 for E-7018

electrodes is what?

Definition 137

4 hours

Term 138

Accor ding to AWS D1.1, the separ ation

between f aying sur f aces of butt joints

landing on a backing bar cannot

exceed what amount?

Definition 138

1/16"


47/49

Term 139

what is the national or ganization f or

concrete and soils technicians?

Definition 139

ASCET

Term 140

under the provisions of AWS D1.1,

who is ultimately and legally

responsible f or assuring that the

welder s ar e certif ied?

Definition 140

the contr actor

Term 141

most of ten, preheat and interpass

temper atures ar e measured using

what?

Definition 141

temperatur e-indicating crayons (also

contact pyrometer)


48/49

Term 142

when the base metal must be

pr eheated prior to welding, AWS D1.1

specifies that the arts must be heated

to the requir ed minimum for at least

how f ar in all dir ections prior to

welding?

Definition 142

3" (or thickness of material, whichever

is gr eater ))

Term 143

ASTM is an abbreviation f or what?

Definition 143

American Society f or Testing and

Materials

Term 144

once r emoved from their original

containers, AWS D1.1 r equir es that

low-hydrogen electrodes be

maintained in electrode ovens at what

minimum temperatur e?

Definition 144

250°F


49/49

Term 145

What is an ITL?

Definition 145

Independent Testing Laborator y

Term 146

A CWI or CAWI must have passed what

eye test(s)?

Definition 146

20/40 with or without correction and

Jaeger J-2 at 12" near vision acuity

(color test may be r equir ed by

employer , but is not required by AWS)