Online Access Free API-577 Exam Questions

Hardness testing of production welds and the HAZ requires test areas to be:

• A.Cleaned to remove surface scale and flux.
• B.Clean, flat area or even flush with the base metal.
• C.Cleaned down to the bare metal.
• D.Ground to a smooth contour.

To reduce exposure to moisture of low-hydrogen electrodes after they have been removed from the manufacturer's packaging, they should be stored:

• A.In tightly sealed ovens.
• B.Under low humidity conditions.
• C.In sealed plastic containers.
• D.In warm holding ovens.

Items to be included in the WPS for GMAW process are:

• A.Base metal P-number and deposited metal thickness.
• B.Electrode-flux class and electrical characteristics.
• C.Type of welding process and test coupon thickness.
• D.Joint design and test coupon thickness.

The most common measure of weldability and susceptibility to hot cracking of austenitic stainless steels is the ferrite content of the weld metal. Which of the following ranges is the recommended minimum ferrite content of the weld metal needed to prevent cracking?

• A.8%-18%
• B.15%-20%
• C.5%-20%
• D.1%-10%

The size and width of the weld HAZ is dependent upon:

• A.The properties of the base metal.
• B.The residual hardness of the weld joint.
• C.The thickness of the metal.
• D.The heat input during welding.