Online Access Free API-577 Practice Test

If an individual changes an essential variable in the WPS, the individual must:

• A.List the change as a supplement to the WPS.
• B.Record the change on the existing WPS.
• C.Re-qualify the PQR.
• D.Re-qualify the WPS.

General awareness of metallurgy is important to the welding inspector because:

• A.Physical properties of the final weldment can be significantly affected by preheat and postweld heat treatment (PWHT).
• B.A thorough knowledge of weld metal structures is necessary to understand weldability.
• C.Welding processes can affect both mechanical and corrosion properties of a weldment.
• D.The crystalline structure of base metals affects the resulting structure of the weld.

Items to be included in the PQR for the SMAW process are:

• A.Electrode-flux class and electrical characteristics.
• B.P-numbers of coupon welded and AWS classification numbers.
• C.Welding process used and AWS classification numbers.
• D.Welding process used and P-numbers of coupon welded.

Which of the following transfer methods associated with GMAW is characterized by a highly directed stream of discrete drops that are accelerated by arc forces, and negligible spatter?

• A.Globular transfer
• B.Short circuiting transfer
• C.Pulsed droplet transfer
• D.Spray transfer

Codes/standards sometimes specify impact testing of weldments at minimum design metal temperatures to:

• A.Assure that the welded material has sufficient yield strength to avoid brittle fracture.
• B.Assure that the welded material has sufficient ductility to assist brittle fracture.
• C.Assure that the welded material has sufficient tensile strength to avoid failure at design loads.
• D.Assure that the welded material has sufficient toughness to resist brittle fracture.