Aws-cwi Some Question (2)

Term 1

Definition 1

The effective throat of a complete penetration groove weld shall be

The thickness of the thinner part joined

Term 2

Definition 2

When welding lengthwise connecting two round bars, the proper symbol would be

Flare V Groove weld

Term 3

Definition 3

Fillet welds may be used to connect skewed T joints provided the plates are set at an angle of not less than

30°

Term 4

Definition 4

The minimum thickness for a plug weld in material 1" thick shall be

5/8"

Term 5

Definition 5

Welding shall not be done when:

When ambient temperature is lower than 0°F or Surfaces are wet or exposed to rain, snow, or high wind or When welders are exposed to inclement conditions.

Term 6

Definition 6

When ambient temperature is lower than 0°F or Surfaces are wet or exposed to rain, snow, or high wind or When welders are exposed to inclement conditions.

AWSA5.17 & A5.23

Term 7

Definition 7

When welding 5/16" plate in the field, a welder must be certified for

Structural

Term 8

Definition 8

Re-entrant copes shall have a minimum radius of:

1"

Term 9

Definition 9

Where tight fit of intermediate stiffeners is specified, it shall be defined as allowing a gap of up to

1/16"

Term 10

Definition 10

Spatter is caused by

Welding current too high or arc length too long

Term 11

Definition 11

In order to insure sound welds at the ends of a joint. The following shall be used

Extension bars & runoff plates

Term 12

Definition 12

In repairing cracks in a weld, remove the crack and sound weld metal how far beyond each end of the crack

2"

Term 13

Definition 13

The removal of slag from a deposited weld bead is:

Mandatory

Term 14

Definition 14

What electrodes have low hydrogen coating?

Electrodes ending 5, 6, or 8.

Term 15

Definition 15

With which process would an ER70S-X electrode be used

GMAW

Term 16

Definition 16

Oven storage of low hydrogen electrodes is:

To avoid damage by atmospheric moisture

Term 17

Definition 17

Welded joints not pre-qualified shall be:

Qualified

Term 18

Definition 18

Welder certification may be waived by

No one

Term 19

Definition 19

Peening is not permitted on

Root and surface layers of welds 5.27

Term 20

Definition 20

The suggested minimum nominal thickness of backing bars for SMAW process is

3/16

Term 21

Definition 21

Pre-heat and interpass temperatures must be sufficient to

Prevent crack formation

Term 22

Definition 22

Low hydrogen electrodes exposed to the atmosphere for longer periods then that permitted by codes shall be £ redried no more than

One time

Term 23

Definition 23

The minimum effective length of a fillet Overall length of full size fillet including weld shall be: boxing

Term 24

Definition 24

Caulking of welds; What is it and is it permitted

Caulking of welds is to plastically deform weld or base metal surfaces to seal or obscure discontinuities as undercut, piping porosity, pin holes, cracks, etc. Caulking is not permitted on most metals.

Term 25

Definition 25

In gas metal arc welding the electrode is:

Consumable

Term 26

Definition 26

The effective area of a fillet weld is:

The effective weld length X the effective throat.

Term 27

Definition 27

The minimum length of an intermittent fillet weld shall be:

1 1/2"

Term 28

Definition 28

The 'U' in joint designation TC-U9a refers to:

Metal thickness, U = Unlimited

Term 29

Definition 29

Arc strikes outside the area of permanent welds should be:

Avoided

Term 30

Definition 30

Base metal specification may be found in:

ASTM

Term 31

Definition 31

Information regarding back gouging of roots in a single bevel groove weld without backing is found in footnote section:

Note 4

Term 32

Definition 32

What is the required root opening for the SMA welded CJP single-U-groove weld:

0 to 1/8"

Term 33

Definition 33

When spacers are used in the doubleSpacer removed by gouging to sound bevel groove weld, the weld is not to metal be-fore welding second side. be complete until:

Term 34

Definition 34

The size of the spacer for double-V groove weld using a 30° bevel and welded in the overhead position shall be:

1/8" X 3/8"

Term 35

Definition 35

What is the required root opening for a single-V-groove weld to a back-up strip welded in the vertical position at 20° angle:

1/2"

Term 36

Definition 36

A single J-groove weld preparation in the horizontal position shall be made with SMAW & groove angle of:

45°

Term 37

Definition 37

What is the root opening for a partial joint penetration square groove weld butt joint of material 1/4" thick:

1/8"

Term 38

Definition 38

A break in the arrow shaft in the symbol in the single bevel groove weld indicates:

Which plate to chamfer

Term 39

Definition 39

What is the maximum base metal thickness in a single bevel groove weld:

U = Unlimited

Term 40

Definition 40

What is the included angle of preparation for the double-V-groove weld. Using a spacer and a 1/2" root

20°

Term 41

Definition 41

In an E70 1 8 electrode, what does the E designate

Electrode

Term 42

Definition 42

Before welding a joint, the surfaces to be welded shall be free of what?

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

Term 43

Definition 43

If a welder is qualified by testing in 3/8 inch thick tubular structural steel in the 6-GR position CJP using a E701 8 electrode, is the welder qualified to weld a PJP on 1 inch thick Structural Steel plate in the vertical down position?

NO

Term 44

Definition 44

It is usually good practice to oscillate which of the mild steel SMAW electrodes

E6010 & E6011

Term 45

Definition 45

The E7024 electrode may be used in what positions?

Flat and horizontal

Term 46

Definition 46

Which of the SMAW electrodes has an iron powder covering?

Electrodes with last digit "4"

Term 47

Definition 47

Which of the SMAW electrodes has an iron powder and low-hydrogen covering?

Electrodes with last digit "8"

Term 48

Definition 48

Which welding process would an E7018 electrode be used with?

SMAW

Term 49

Definition 49

Which welding process would an E70T-X electrode be used with?

FCAW

Term 50

Definition 50

Single bevel groove, with 45° angle and backing, the root opening must be what?

1/4"

Term 51

Definition 51

The maximum size of a fillet weld in the flat position, and in one pass shall be how much?

3/8"

Term 52

Definition 52

Continuous solid wire electrode ( E70S-X ) used in semi-automatic welding would be used in which process?

GMAW

Term 53

Definition 53

Members distorted by welding may be straightened by application of limited amounts of localized heat. The temperature of heated areas as measured by approved methods shall not exceed how much for Quenched and tempered ( Q. & T.) steel nor how much for other steels.?

Q&T1100°F, Other 1200°F

Term 54

Definition 54

What is the minimum thickness of material to be used for weld washers?

0.05"

Term 55

Definition 55

When parts are to be fillet welded, in a lap joint of material under 3" thick the allowable separation of faying surfaces shall not exceed how much?

3/16" Max

Term 56

Definition 56

The maximum size electrode allowed for the root pass of an overhead fillet weld is what diameter?

5/32"

Term 57

Definition 57

What is the maximum permitted carbon equivalent for reinforcing steel that may be welded without prior qualification tests?

0.65 %

Term 58

Definition 58

The first 7 in the E71T-7 designates what?

The tensile strength in 10,000's of psi

Term 59

Definition 59

The last digit "7" in E7027 designates what?

Type of flux coating on electrode - Iron powder / Iron oxide; & type of current used - AC or DCEN.

Term 60

Definition 60

When welding a flat fillet root pass, the largest allowable electrode is what diameter?

3/16"

Term 61

Definition 61

The "S" in E70S-3 designates what?

GMAW - Solid wire electrode

Term 62

Definition 62

The digit "1" in E7018 indicates that welding is to be in what positions?

All positions

Term 63

Definition 63

Which of the SMAW electrodes has an iron powder and iron oxide covering?

SMAW mild steel electrodes where last digit is "7", ie. E6027

Term 64

Definition 64

The E6011 electrode will give more penetration than all other SMAW electrodes except what?

E6010only

Term 65

Definition 65

The "60" in E6011 indicates what

60,000 psi Tensile strength

Term 66

Definition 66

The effective throat thickness of a fillet weld is computed by measuring the shortest distance between what two points? {AW

The root to the face

Term 67

Definition 67

Low hydrogen shielded metal arc electrodes shall be protected from moisture. The E70XX low hydrogen electrodes shall be returned to an oven within what period of time?

4 hours

Term 68

Definition 68

In butt weld root pass in the horizontal position,the thickness of weld metal that may be built up behind the advancing arc shall be how large?

5/16"

Term 69

Definition 69

Between "Structural Welding Code Steel" Dl.l and "Structural Welding Code - Sheet Steel" D1.3, there is M a metal thickness overlap of the minimum for Dl.l and the maximum for D1.3. How much overlap of metal thickness is there?

0.055 = approx. 1/16 inch.

Term 70

Definition 70

Even if prior qualification is made, what is the maximum permitted carbon equivalent for reinforcing steel that is to be welded?

0.75%

Term 71

Definition 71

In which positions is 1/2" the maximum size allowed for a fillet weld made in one pass?

Vertical

Term 72

Definition 72

Using DC straight polarity, the electrode is which; . . . . positive, negative or neutral

Negative

Term 73

Definition 73

The minimum preheat and interpass temperature for ASTM A572 grade 60 structural steel 2" thick welded with ™ SMAW process is how much?

225°F

Term 74

Definition 74

The minimum preheat and interpass temperature for structural steel 1/2" welded with the SMAW process and an electrode other than Low Hydrogen is how much?

32°F

Term 75

Definition 75

The largest electrode permitted when welding in the flat position is what diameter

5/16"

Term 76

Definition 76

E7018 electrodes are used with what type of welding current

AC & DCEP

Term 77

Definition 77

Should back-up strips or bars be removed from all welds? Explain

No; Not mandatory but permissible

Term 78

Definition 78

Shielded metal arc electrodes with low hydrogen covering shall be kept dry in storage ovens. Low hydrogen electrodes of the E80XX series when taken from the oven shall be used within what period of time?

2 hours

Term 79

Definition 79

Except for root pass, the largest electrode permitted for out of position welding is what diameter

1/4

Term 80

Definition 80

Reverse polarity means that the electrode is which; .. . positive, negative or netural ?

Positive

Term 81

Definition 81

What does "CJP" in the tail specifications part of a weld symbol mean?

Complete Joint Penetration

Term 82

Definition 82

What kind of metal is classified as 6061-T6?

Aluminum

Term 83

Definition 83

Safety precautions shall conform to the latest edition of what specification published by the American Welding Society?

ANSI/AWSZ49.1

Term 84

Definition 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?

60,000 psi

Term 85

Definition 85

The amount of lap required for a fillet welded lap joint shall be at least five times the thickness of the thinner plate not less than how much?

1 inch

Term 86

Definition 86

Backing strips are used to prevent melting through roots of grooves welds by using what for backing material?

Metal, weld metal, carbon,flux, gas, glass tape, etc.

Term 87

Definition 87

The minimum angle of the plates in a skewed T joint, to be welded with fillet weld, shall not be less than how many degrees to be considered as effective in transmitting applied force?

30°

Term 88

Definition 88

The minimum thickness of a plug or slot weld in 3/8" plate is how much?

3/8"

Term 89

Definition 89

The largest size of crater permitted and left at the end of a weld is how much?

No crater of any size is allowed

Term 90

Definition 90

A fillet weld when measured for size shall be measured how?

Leg length of the largest inscribed isosceles rt. triangle

Term 91

Definition 91

CWI: 5 years experience, or 3 years & a what are the education and experience technical degree; CAWI: 2 years requirements for a CWI? CAWI? experience, or 6 months & a technical degree

Term 92

Definition 92

1) code or governing body; 2) purchaser's, customer's, or owner's welding inspectors can be categorized (QA); 3) fabricator's, manufacturer's, or how? contractor's (QC); 4) architect's or engineer's

Term 93

Definition 93

what document(s) cover(s) safety in welding and cutting?

ANSI Z49.1

Term 94

Definition 94

which is most general of the following terms: code, standard, specification?

standard

Term 95

Definition 95

ASME B31.1 & B31.3 cover what subjects?

B31.1 covers pressure vessels and power piping, B31.3 covers chemical process piping

Term 96

Definition 96

Interpass temperatures are measured what distance from the joint?

1"

Term 97

Definition 97

What topics are covered by ASME Boiler and Pressure Vessel Code sections V, VIII, & IX?

V covers nondestructive examination; VIII covers Unfired Pressure Vessels, and IX covers Welding and Brazing Qualifications

Term 98

Definition 98

In structural applications, when the metal thickness is less than 1/8", what AWS code applies?

AWS D1.3 - sheet metal

Term 99

Definition 99

Fillet welds may be measured using a tolerance of :____

-1/32"

Term 100

Definition 100

is the name of the document that prescribes the details of how a weld must be performed.

WPS - Welding Procedure Specification

Term 101

Definition 101

When it is impractical for the welding inspector t witness all tests and observe all welds during production, what kind of inspection results?

random-partial

Term 102

Definition 102

the welding inspector is responsible for judging acceptability of a product in accord with what?

a written document

Term 103

Definition 103

which code choices are available for taking AWS QC1 CWI/CAWI exams?

AWS D1.1; API 1104; AWS D1.2 (structural aluminum); AWS D1.5 (Bridge); AWS D15.1 (Railroad); ASME VII & IX; ASME IX, B31.1, & B31.3

Term 104

Definition 104

AWS D1.1 specifies that nondestructive testing must be performed by an individual qualified in accordance with what document?

SNT-TC-1a

Term 105

Definition 105

ASME B31.1 & B31.3 cover what subjects?

B31.1 covers pressure vessels and power piping, B31.3 covers chemical process piping

Term 106

Definition 106

Interpass temperatures are measured what distance from the joint?

1"

Term 107

Definition 107

welding symbols are defined in what publication?

AWS A2.4

Term 108

Definition 108

What topics are covered by ASME Boiler and Pressure Vessel Code sections V, VIII, & IX?

V covers nondestructive examination; VIII covers Unfired Pressure Vessels, and IX covers Welding and Brazing Qualifications

Term 109

Definition 109

In structural applications, when the metal thickness is less than 1/8", what AWS code applies?

AWS D1.3 - sheet metal

Term 110

Definition 110

which code choices are available for taking AWS QC1 CWI/CAWI exams?

AWS D1.1; API 1104; AWS D1.2 (structural aluminum); AWS D1.5 (Bridge); AWS D15.1 (Railroad); ASME VII & IX; ASME IX, B31.1, & B31.3

Term 111

Definition 111

for fillet welds on material greater than 1" thick or greater, what is the allowable undercut? Are there exceptions?

1/16", no exceptions

Term 112

Definition 112

in cases of dispute over welding terms, what document prevails?

AWS A3.0

Term 113

Definition 113

the standard describing the requirements for welding crosscountry pipeline is:

API 1104

Term 114

Definition 114

acetylene becomes unstable above what pressure?

15psi

Term 115

Definition 115

safety training is mandated under the provisions of what agency?

OSHA

Term 116

Definition 116

Name the ending numbers in the classification E-70XX for low hydrogen SMAW electrodes

70X5, 70X6, 70X8

Term 117

Definition 117

Name the position numbers in the classification of E-70XX SMAW electrodes

701X is all positions, 702X is flat and horizontal only

Term 118

Definition 118

T or F: according to AWS D1.1, steel backing on groove welds must be continuous.

TRUE

Term 119

Definition 119

At what level are currents considered "primary shock currents" and hence dangerous?

6mA

Term 120

Definition 120

what is the most common ASTM structural steel? What is its minimum yield strength? What is its minimum Ultimate Tensile Strength (UTS)?

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

Term 121

Definition 121

AWS D1.1 states that all surfaces to be welded and surfaces adjacent must be free from what elements?

thick scale, slag, moisture, rust, grease, and other foreign material. Paint & mill scale (not loose or thick) are acceptable

Term 122

Definition 122

what is the numerical designation for the AWS filler metal specification "Carbon Steel Covered Arc Welding Electrodes"?

A5.1

Term 123

Definition 123

what is the numerical designation for the AWS filler metal specification "Low Alloy Steel Covered Arc Welding Electrodes"?

A5.5

Term 124

Definition 124

The American Welding Society certifies welding inspectors according to what document?

AWS QC1

Term 125

Definition 125

what topics do the sections of AWS D1.1 cover?

1) General Requirements; 2) Design of Welded Connections; 3) Prequalification of WPSs; 4)Qualification; 5) Fabrication; 6) Inspection; 7) Stud Welding; 8) Strengthening and Repair of Existing Structures

Term 126

Definition 126

what are the two kinds of welding inspectors defined by the AWS D1.1? What are their roles?

Fabrication/Erection (QC), and Verification (QA)

Term 127

Definition 127

"Authorized Inspector" is a term associated with what? By what organization are they certified?

an "Authorized Inspector" is one who has bottom-line QC responsibility; they are certified by the National Board of Boiler and Pressure Vessel Inspectors

Term 128

Definition 128

How often are new editions of the AWS AD1.1 published?

every 2 years

Term 129

Definition 129

what does the "Code of Ethics" of the AWS QC1 consider to be the most important obligation of a welding inspector

public safety

Term 130

Definition 130

what is a MTR?

Material Test Report

Term 131

Definition 131

For material less than 1" thick what is the maximum allowable undercut in a fillet weld? Are there exceptions?

1/32" exception: up to 1/16" for any accumulated length up to 2" in 12"

Term 132

Definition 132

the term "Contract Documents" refers 1) all applicable codes; 2) the to what? (structural) plans; 3) the specifications

Term 133

Definition 133

what is a specification?

a document that describes the requirements for a particular object or component

Term 134

Definition 134

what is a weld discontinuity?

an interruption in the typical structure of the material

Term 135

Definition 135

what is a weld defect?

a discontinuity or discontinuities that render a product unacceptable

Term 136

Definition 136

what is an RFI?

Request For Information

Term 137

Definition 137

the maximum atmospheric exposure time allowed by AWS D1.1 for E-7018 electrodes is what?

4 hours

Term 138

Definition 138

According to AWS D1.1, the separation between faying surfaces of butt joints landing on a backing bar cannot exceed what amount?

1/16"

Term 139

Definition 139

what is the national organization for concrete and soils technicians?

ASCET

Term 140

Definition 140

under the provisions of AWS D1.1, who is ultimately and legally responsible for assuring that the welders are certified?

the contractor

Term 141

Definition 141

most often, preheat and interpass temperatures are measured using what?

temperature-indicating crayons (also contact pyrometer)

Term 142

Definition 142

when the base metal must be preheated prior to welding, AWS D1.1 specifies that the arts must be heated to the required minimum for at least how far in all directions prior to welding?

3" (or thickness of material, whichever is greater))

Term 143

Definition 143

ASTM is an abbreviation for what?

American Society for Testing and Materials

Term 144

Definition 144

once removed from their original containers, AWS D1.1 requires that low-hydrogen electrodes be maintained in electrode ovens at what minimum temperature?

250°F

Term 145

Definition 145

What is an ITL?

Independent Testing Laboratory

Term 146

Definition 146

20/40 with or without correction and A CWI or CAWI must have passed what Jaeger J-2 at 12" near vision acuity eye test(s)? (color test may be required by employer, but is not required by AWS)