AWS AWS D1.1 Structural Welding Code

Question 1

AWS D1.1 applies to which type of structures?

Accepted Answer

Structural steel welding (bridges, buildings, and other stationary structures)

Answer

Pressure vessels and boilers

Answer

Pipeline welding (oil and gas)

Answer

Sheet metal and light gauge steel

Question 2

Under AWS D1.1, a 'prequalified joint detail' means:

Accepted Answer

The joint has been tested by the AWS committee and requires no WPS qualification testing

Answer

The joint has been pre-tested by the contractor

Answer

The joint is pre-approved for pipe welding applications

Answer

The joint can be used without any inspection

Question 3

The Engineer of Record (EOR) on a D1.1 project has the authority to:

Accepted Answer

Approve alternate materials, joint details, and accept weld quality deviations from the code

Answer

Only inspect completed welds

Answer

Only issue WPS documents for the contractor

Answer

Perform welder qualification testing

Question 4

Visual inspection acceptance criteria for groove welds in D1.1 cyclically loaded structures require that undercut shall not exceed:

Accepted Answer

1/32 inch (0.8 mm) in depth

Answer

1/16 inch (1.6 mm) in depth

Answer

1/8 inch (3.2 mm) in depth

Answer

Any undercut is acceptable if ground smooth

Question 5

What does the term 'FCAW-EH4' classification mean in AWS D1.1 Table 3.1?

Accepted Answer

The electrode has a maximum diffusible hydrogen content of 4 mL/100g of deposited weld metal

Answer

The electrode is approved only for horizontal position

Answer

The electrode requires 4 kJ/in maximum heat input

Answer

The electrode requires 4-inch minimum preheat zone

Question 6

Under AWS D1.1, a complete joint penetration (CJP) groove weld is one that:

Accepted Answer

Achieves fusion through the entire thickness of the joint

Answer

Has a visible reinforcement on both sides of the joint

Answer

Requires backing bars on both sides

Answer

Is inspected by RT regardless of structural loading