Free API API-577 Exam Dumps Questions & Answers

Which of the following can result from residual magnetism left in a partially completed weld?

• A.  Solidification cracking
• B.  Deflection of the weld arc
• C.  Tendency of weld pool to be sluggish
• D.  Excessive distortion

How much should each pass of the transducer overlap the previous path during a weld scan?

• A.  20% of the transducer element dimension.
• B.  5% of the transducer element dimension.
• C.  10% of the transducer element dimension.
• D.  15% of the transducer element dimension.

What increases when a welder increases the amperage?

• A.  Travel speed
• B.  Arc length
• C.  Voltage
• D.  Heat

When welding using the shielded metal arc welding (SMAW) process, which of the following best describes the appearance of excessive penetration on a radiograph?

• A.  An irregular darker density near the center of the width of the weld image along the edge of the root pass image.
• B.  A localized darker density with fuzzy edges in the center of the width of the weld image.
• C.  A lighter density in the center of the width of the weld image, either extended along the weld or in isolated circular drops.
• D.  An abrupt density change across the width of the weld image with a straight longitudinal darker density line at the center of the width of the weld image along the edge of the density change.

To avoid burn through during in-service welding on thinner wall equipment, it is generally recommended to:

• A.  Use larger diameter electrodes.
• B.  Minimize weaving the bead.
• C.  Maximize weaving the bead.
• D.  Use high heat input.