3rd Flashcards

1
Q

CSA welding standard

A

W59

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2
Q

CSA standard for companies

A

W47.1

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3
Q

What does w59 have to off set costs of making a welding procedure?

A

A number if preferred qualified welding procedures

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4
Q

What is creep?

A

Molecules start to shift at higher temp

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5
Q

Advantages of standardize

A

Increased quality and reliability

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6
Q

Cwb difference between class and classification?

A

Classification: refers to T,S,FW,ASW, OR WT (t open root, s with backing for example)
Class refers to position

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7
Q

CWB how wide are each specimen?

A

38 mm

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8
Q

How big is the cwb gap between plates

A

2G : 8mm
Others 13 mm

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9
Q

What gets a vessel excluded from absa

A

Not exceeding 15 psi
Not exceeding 6 inches

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10
Q

What is the best process for ship building?

A

SAW

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11
Q

ASME boiler code section

A

VIII

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12
Q

ASME section on non destructive testing

A

V

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13
Q

Can the quality of steel welded to a boiler be of different quality.

A

Must be at the same quality

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14
Q

Tapered transition ratio

A

3:1

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15
Q

Temp your not supposed to weld below

A

-18

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16
Q

CSA standard for piping systems

A

Z662 underground
B31.3 above ground (asme)

17
Q

Minimum pressure vessel thickness

A

1.5 mm/ 1/16th “

18
Q

Out of roundness max between in and out diameter

19
Q

Min pressure for hydrostatic test on a vessel? On pipe

A

1.3x
1.5
max allowable working pressure

20
Q

Welder performance qualification form

21
Q

Welding safety csa #

22
Q

Codes for storage tanks

23
Q

Csa standard B51 covers

A

Boilers and pressure vessels

24
Q

Stress calc formula

25
Brinelle test: how big is the hardened steel ball?
10 mm
26
Fatigue test measures
The ability of a material to withstand repeated loading or unloading
27
Endurance limit :
The max dynamic load a material can handle through infinite cycles without breaking
28
Creep tests:
Test low stress over long periods of time usually at elevated temps
29
Most important destructive test for industry
Tensile test
30
Steels modulus of elasticity
30,000 lbs/ square inch
31
Destructive testing yields 2 types of data, what are they n definitions
Quantitative: numbers, ect Qualitative: taste, appearance, ect
32
Nick break test is used for
Check the interior of a weld for flaws such as lack of fusion, porosity, slag inclusion
33
Most impact tests ( eg charpy) measure
A materials impact strength
34
What test is for softer materials: Rockwell or brinell?
Brinell
35
Difference between elastic and plastic deformation?
Plastic doesn't go back
36
According to api 650 welding procedure specifications must conform to
ASME section IX
37
Csa standard B51 covers
Boilers and pressure vessels
38
What asme section deals with welding qualifications
IX
39
I cubic foot is _____ gal
6.239