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Welding Inspection Study Guide > Exam 4 > Flashcards

Exam 4 Flashcards

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1
Q

What does the ‘U’ in the TC-U9a joint design mean?

A

Metal thickness, U = unlimited

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2
Q

In the ‘Structural Welding Code - Steel’, which processes are prequalified?

A

GMAW, FCAW, SMAW, and SAW

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3
Q 
Of the following, which is NOT a prequalified process?
A: FCAW
B: GMAW-S
C: SAW
D: SMAW
A

B: GMAW-S

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4
Q

Under AWS D1.1, of the following processes, which is NOT deemed as prequalified?
A: flux-cored arc
B: shielded metal arc
C: short-circuiting transfer gas metal arc
D: spray transfer gas metal arc

A

C: Short-circuiting transfer gas metal arc

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5
Q

Under AWS D1.1, is it possible for a WPS using GMAW-S to be qualified?

A

Yes, if the WPSs conform with the requirements of Clause 6.

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6
Q 
Of the following processes, which are code approved?
A: EGW
B: ESW
C: GTAW
D: All of the above
A

D: All of the above

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7
Q

If AWS D1.1 code conformance is required would OFW-A be used for welding?

A

Yes, if the procedure was qualified per Clause 6.

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8
Q

Under AWS D1.1, how could a new welding process be used for welding?

A

It could be used by qualification of the WPSs under Clause 6.

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9
Q

All FCAW and GMAW prequalified WPSs are required to use _____ as a power supply.

A

CV (Constant Voltage)

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10
Q

Which standards must most base metals used in fabrication conform with?

A

ASTM and API Standards

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11
Q

High carbon steel is best welded with which kind of SMAW electrode?

A

Low Hydrogen

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12
Q

Where are specifications for base metal found?

A

ASTM (American Society for Testing and Materials)

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13
Q

An ER70S-X electrode would be used for which process?

A

GMAW

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14
Q

Which process would use continuous solid wire electrodes (E70S-X) for use in semi-automatic welding?

A

GMAW

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15
Q

An E70T-X electrode would be used in which welding process?

A

FCAW

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16
Q

The specification for a suitable FCAW filler material when joining ASTM A516 Gr. 55 is:

A

AWS A5.36

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17
Q

If a steel plate is 1-3/4” thick, what is the most common temperature needed to be preheated to before welding?

A

225 degrees F

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18
Q

The minimum preheat temperature for 1-1/4” thick A572 steel, Grade 60 is

A

150 degrees F

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19
Q

The minimum temperature for GMAW welding 2-1/2” thick A572 Grade 60 material is:

A

225 degrees F

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20
Q

The preheat and interpass temperature for ASTM A992 over 2-1/2”, using FCAW process should never be more than:

A

300 degrees F

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21
Q

The minimum preheat temperature for using an E7018 electrode to weld 1 inch thick ASTM A36 plate is:

A

150 degrees F

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22
Q

For ASTM A572 steel, Grade 42, the minimum required preheat for welding 2-1/2” thick steel with a prequalified procedure using the GMAW process is:

A

150 degrees F

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23
Q

What is the minimum temperature required on adjacent base material for ASTM A537, 1-3/4” thick when SMAW with low-hydrogen electrodes.

A

150 degrees F

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24
Q

What is the minimum preheat and interpass temperature for SMAW welding ASTM A572, Grade 60 structural steel 2” thick

A

225 degrees F

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25
Q

Welding 1/2” thick ASTM A36 carbon steel without preheating must be done at a temperature of no less than:

A

32 degrees F

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26
Q

What is the minimum preheat and interpass temperature when using the SMAW process and an electrode other than low hydrogen on 1/2” structural steel?

A

32 degrees F

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27
Q

The maximum single pass fillet that may be welded in the overhead position when welding to a prequalified WPS requirement is:

A

5/16 inch

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28
Q

The minimum skewed T-joint angle allowed for welding a double-bevel groove weld is:

A

60 degrees

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29
Q

A skewed T-joint has a minimum allowed angle of:

A

60 degrees

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30
Q

A double-bevel-groove weld in a skewed T-joint must have a joint angle of at least:

A

60 degrees

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31
Q

What is the root face of a double-V-groove weld, with partial penetration, base metal thickness T1=1/2” minimum joint designation B-P3, angle 60 degrees, and root opening of 0 groove?

A

1/8”

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32
Q

What is the root opening for a double-U-groove partial penetration weld, base metal thickness T1=3/4” minimum, welding process SAW, joint designation B-P7-S?

A

+/- 0

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33
Q

What welding positions are allowed for a double-U-groove partial penetration weld, base metal thickness T1=3/4” minimum, welding process SAW, joint designation B-P7-S?

A

Flat

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34
Q

When the welding process is FCAW and GMAW, what is the joint designation for a double-U-groove partial penetration weld, base metal thickness T1=-3/4” minimum?

A

B-P-7-GF

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35
Q

What is the effective throat on a single-bevel groove, BTC-P4-GF joint, groove angle = 45 degrees, root face=1/8” minimum, root opening = 0, and allowed to be welded in overhead and vertical positions?

A

1/8”

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36
Q

For a PJP groove weld B-P1b, the root opening must be no more than:

A

1/4”

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37
Q

The fit-up angle on a single-V0groove with partial penetration is:

A

+10 degrees to -5 degrees

38
Q

The base metal thickness T1 for SAW welding process on a double-V0groove weld, welded on a butt joint, with a partial joint penetration groove is:

A

3/4”

39
Q

When the welding process is SAW on a double-U-groove with partial joint penetration, the joint designation B-P7-S, and base metal thickness T1=3/4” min., what welding positions are permitted?

A

Flat

40
Q

if the joint designation is B-P7, what welding process is used?

A

SMAW

41
Q

What type of metal transfer is not pre-qualified for use with a partial joint penetration groove, TCP8-GF joint type, a=45 degrees, f=1/8” min., r=3/8”, R-), using GMAW

A

GMAW-S

42
Q

In B-U6 joint designation, the ‘U’ is for:

A

unlimited thickness

43
Q

The ‘U’ in TC-U9 is for:

A

unlimited thickness

44
Q

What does a BTC-UC joint designation mean?

A

Butt joint, corner joint or T-joints, unlimited thickness

45
Q

What does the ‘B’ mean in the joint designation BL1a?

A

Butt Joint

46
Q

What does a TC-joint refer to?

A

T-Joint or Corner joint

47
Q

The ‘L’ in the CL1a joint designation stands for:

A

Limited Thickness

48
Q

The ‘GF’ in the TC-U9-a-GF joint designation stands for:

A

GMAW or FCAW

49
Q

What is the correct root face for a single-J-groove in the overhead position to be shielded-metal-arc welded?

A

1/8”

50
Q

What is the joint designation for a double-U-groove, with complete joint penetration, a root face of 1/8”, a groove angle of 20 degrees, and a root opening of 1/8”?

A

BU-7

51
Q

Welds need not exceed 3/8” according to which note?

A

Note J

52
Q

The weld for a double-bevel-groove weld using a spacer is incomplete…

A

until the spacer is removed before welding the second side

53
Q

What must be done before welding the second side of a single-V-groove corner-joint?

A

back gouge

54
Q

What procedure must be followed on a complete joint penetration groove weld, R=0-1/8”, f=0-1/8”, a=60 degrees, joint designation B-U3b, allowed all welding positions, before the weld is considered to be complete?

A

back gouge

55
Q 
Joints without backing should have the roots gouged before welding the other side.  This is found in the section:
A: 2.9.2
B: 4.10.8
C: 3.3.4
D: None of the above
A

None of the above

56
Q

The required root opening for a double-U-groove, with an angle of 45 degrees, welded in the vertical position is:

A

0-1/8”

57
Q

When welded to a back-up strip in the flat position, a single-V-groove weld prepared to an included angle of 30 degrees must have a _______ root opening.

A

3/8”

58
Q

In a vertical position, a double-J-groove weld is prepared with a radius of ______ and a 45-degree angle.

A

3/8”

59
Q

To prepare the double-U-groove weld, the base metal is shaped to a:

A

1/4” radius

60
Q

A double-groove eld with SAW shows a root opening of:

A

0

61
Q

How would a 3/8” root opening for a double-bevel-groove weld be maintained?

A

by a 1/8” thick spacer

62
Q

What is the required included angle of a single-V-groove with a backer, prepared with a 1/4” root opening, to be made in the flat position.

A

45 degrees

63
Q

What is the root opening required for the angle of preparation of 20 degree for a C-U2a groove?

A

1/2”

64
Q

A single-J-groove weld indicates a root face of:

A

0-1/8”

65
Q

For a B-L2c-S weld with a 60-degree angle to be made in a flat position, the root opening is:

A

0

66
Q 
Of the following, which weld requires 0 root opening?
A: double-J-groove
B: double-bevel-groove
C: double-U-groove
D: All of the above
A

double-U-groove

67
Q

For a double-J-groove weld, the base metal must be prepared to a _______ radius.

A

3/8”

68
Q

A single-J-groove weld must have a root opening of:

A

0-1/8”

69
Q

If a single-U-groove weld is to have a 1/4” radius and to be made in the horizontal position, then the prepared angle must be:

A

45 degrees

70
Q

For a double-U-groove in the flat position, the angle of penetration must be at least:

A

20 degrees

71
Q

For a double-V-groove weld with 1/8” x 3/8” spacer in overhead and flat positions, what is the included angle of preparation?

A

30 degrees

72
Q

When may the root opening of a double-bevel-groove weld be 0-1/8”?
A: if the lower plate is beveled 0-15 degrees and the root pass opposite is welded first
B: only in the flat and overhead positions
C: when the top plate is beveled 0-10 degrees
D: All of the above

A

All of the above

73
Q

The required root opening for a double-U-groove welded in the vertical position, with a 45-degree angle as fit-up, is:

A

3/16”

74
Q

A square groove without backing requires a root opening of:

A

1/2 the thickness of the thinner plate

75
Q

What is the angle of penetration for a single-

V-groove butt joint using 1/2” root opening, to be welded in the flat position?

A

20 degrees

76
Q

What is the radius of a double-J-groove weld prepared with an angle of 45 degrees, in the vertical position?

A

3/8”

77
Q

The required root face for a single-U-groove is:

A

1/8”

78
Q

The required root opening for a square-groove weld using 1/4” material is:

A

1/8”

79
Q

The included angle of preparation for a double-V-groove weld using a spacer, with a root opening of 1/2” is:

A

20 degrees

80
Q

A single-U-groove should never have a root opening of more than:

A

1/8”

81
Q

What should the root opening for a single-J-groove using the SAW process in the flat position be?

A

0

82
Q

The root opening for a single-V-groove weld with a backing strip, a 45-degree angle, in the vertical position, is:

A

1/4”

83
Q

What is the radius of a double-J-groove weld prepared with an angle of 45-degrees in the vertical position?

A

3/8”

84
Q

What is the groove angle of a single-V-groove corner-joint if the root opening is 1/4”?

A

45-degrees

85
Q

What is the groove radius for a SMAW welded double-J-groove, double V-groove, where the base metal thickness T1 is U and the joint designation is B-U9, and the root opening is 0-1/8”?

A

3/8”

86
Q

What is the root face on a double-J groove welded with a groove radius of 3/8”, a groove angle of 30-degrees, joint designation of B-U9-GF, and a root opening of 0-1/8”?

A

1/8”

87
Q

What are the permitted welding positions for a SMAW welding process, groove angle 45-degrees, groove radius 1/4”, root face 1/8”, and root opening 0-1/8”?

A

Flat, Overhead, Vertical

88
Q

What is the base metal thickness T1 for a SMAW welding process, groove angle 45-degrees, groove radius 1/4”, root face 1/8”, and root opening 0-1/8”?

A

Unlimited

89
Q

What is/are the welding position(s) allowed for a SAW welding process, groove angle 30-degrees, groove radius 3/8”, root face 1/8”, and root opening 0-1/8”?

A

Flat

90
Q

What figure holds the fit-up tolerance of groove welds?

A

Figure 5.1

91
Q

The minimum angle for a full penetration T-joint is?

A

30-degrees

92
Q

The base metal thickness on TC-U4B-S is:

A

Unlimited

Welding Inspection Study Guide (5 decks)

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