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Our 13 Classes (all of them are required) cover the subjects on the Part B exam.  If your purchase the package ($140) or if you purchase them one at a time (individual class $25 each x 13 = $325) you will receive the following classes:

Terms used on all exam questions are covered in our class -                                                             4 Terms & Symbols
Procedure and welder qualifications are covered in our class -                                                         5 Documents
Metric conversions are required on the Part B exam and are covered in our class -                       6 Metric
Mechanical Test and Properties is covered in our class -                                                    7 Metallurgy
NDE is covered in our class -                                                                                                                  8 NDE - Intro
NDE is covered in our class -                                                                                                                  8 NDE - VT
NDE is covered in our class -                                                                                                                  8 NDE - PT
NDE is covered in our class -                                                                                                                  8 NDE - MT
NDE is covered in our class -                                                                                                                 8 NDE - RT
NDE is covered in our class -                                                                                                                 8 NDE - ET
NDE is covered in our class -                                                                                                                 8 NDE - UT
Inspection tools and discontinuities (plastic sample training)is covered in our class -  10 Practical exam training
Sample Part B (Practical Exam) is class -                                                                                            11. Practical Exam
 Do not memorize the questions and answers. You need to know the subject matter.
You will get different questions on the real AWS CWI Part B Exam.
You need to know the subject matter.
 

Terms & Symbols (42 questions)

Documents  (34 questions)

Metric  (20 questions)

Metallurgy  (71 questions)

NDE – Intro  (no questions – reference only)

NDE – VT  (7 questions)

NDE – PT   (11 questions)

NDE – MT   (21 questions)

NDE – RT   (6 questions)

NDE – ET   (6 questions)

NDE – UT   (6 questions)

Practical exam training  (37 questions)

And at the end a  Practical Exam with 89 questions.

This is a total of 350 questions – you will  have only 46 questions on the real CWI Part B Exam.
 
Answers to your questions:
Why is the maximum allowable convexity for a weld of 11/16 actual width 3/16 and not 1/8? Part B book says W>5/16in To W<1in max="" convexity="" 1="" 8in="" span="">
Question has a Type-O  - should be  1   1/16”   not 11/16”

How would I get the answer to the following:
A welder has been qualified for groove welding using a 12 in. schedule 80 pipe test coupon in the 2G position.
Is the welder qualified for the welding of 4 in. schedule 80 pipe?
Part B  Book of Specifications  - APPENDIX XI Page 13 – Table 2 (test on pipe & tubing):

Answer is yes but not in the 5G or 6G position

I doubt you have a question concerning this, however K = Kelvin:
1 degree Fahrenheit  =   255.9278  degrees Kelvin
1 degree Kelvin =   -457.866  degrees Fahrenheit  
1 degree Celsius  =   274.15 degrees Kelvin
1 degree Kelvin =   -272.15 degrees Celsius
----------------------
“A tensile strength of 65,000 psi is approximately equal to:”
A.)   448,000 Pa
B.)   48,000,000 Pa  (THIS IS A TYPE-O,  should read  448,000,000)
C.)   448 MPa
D.)   A and B above
E.)    B and C above

Correct answer is E.   (B & C above)

Weld is Parallel to the Load
Weld is Transverse to the Load

GMAW / FCAW

Joint Designation B-U2-GF

The specified range of  root  face ( f  = minimum of 0 to a maximum of 1/8 ) for the initial groove preparation is 0 to 1/8 in., what is the range of root face permitted As Detailed (+ 1/6,  - 0 ) for this joint?

 

a.  0  to 3/16 in.

b.  1/16 in. to 3/16 in.

c.  1/16 in. to 1/8 in.

d.  1/8 in. to 3/16 in.

You would add the specified ( f = minimum 0 to maximum 1/8 ) to the As Detailed tolerance (+ 1/6,  - 0 ).

Minimum   0 0  = 0

Maximum  1/8 +  1/16 = 3/16

This will give you  ( a. )  as the correct answer = 0 to 3/16


GMAW / FCAW

Joint Designation B-U2a-GF

The specified Groove Angle ( a ) for Root Opening ( R ) 3/16 for the initial groove preparation is,   a  = 30 degrees, what is the range of Groove Angle permitted As Fit Up (+ 10 degrees,  - 5 degrees ) for this joint?

 

a.  25  to 40 degrees

b.  1/16 in. to 3/16 in.

c.  1/16 in. to 1/8 in.

d.  1/8 in. to 3/16 in.

You would add the specified ( a = 30 degrees ) to the As Fit Up tolerance (+ 10,  - 5 ).

Minimum   30 degrees  5 degrees  = 25 degrees

Maximum  30 degrees +  10 degrees  = 40 degrees

This will give you  ( a. )  as the correct answer = 25 to 40 degrees

 

GMAW / FCAW

Joint Designation B-U2a-GF

What is the specified Root Opening for Prequalified joint B-U2a-GF using the gas shielded FCAW process.

 

a.  1/4 in.

b.  3/8 in.

c.  3/16 in.

d.  not specified

 

The only gas shielded FCAW listed has a root opening specified as 3/16.  You would not add the specified ( 3/16 ) to the As Detailed or  the As Fit Up since the question only ask what the specified Root opening is.

This will give you  ( c. )  as the correct answer =  3/16 in.


 Are confusing the Tolerances with a Range.  The tolerances are not showing a Range.  Tolerances show what can be added to the root opening, and what can be  subtracted from the Root Opening
 
 To help you understand, let’s start off with understanding in the Tolerances the  – 0   is equal to subtracting nothing or no change to the Root Opening.  
 
Now let’s look at just the Root Opening dimension.  Note – it is a Range  0  to 1/8 =  (Root Opening Closed up which is reflected by 0 to a gap of 1/8)
 
On the other hand the Tolerance - As Detailed -  is not a range – it is simply adding 1/16  
Add this to the original root opening and now you have a Root Opening Closed up to a gap of now 3/16
 
Root Opening = 0  to 1/8   if we were add the Tolerances As Fitup (+ 1/16, - 1/8) you could add 1/16 to the Root Opening.

This would make the Root Opening 0 to 3/16,  then you could take away 1/8  (-1/8) from the Root Opening which would make the Root Opening 0.

So the As Fitup would be 0 to 3/16
 
 
 
All The Best;

Rick