API-577 Practice Questions

A.  

Good weldability.

B.  

Significant issues with lack of sidewall fusion.

C.  

Fewer problems with distortion.

D.  

A tendency toward lack of root pass fusion.

A.  

It is more sensitive to drafts and wind than GMAW.

B.  

It has lower deposition rates than SMAW.

C.  

Shielding must always be provided by an externally supplied gas.

D.  

Large volumes of welding fumes are generated.

A.  

A lighter density in the center of the width of the weld image, either extended along the weld or in isolated circular drops.

B.  

An irregular darker density near the center of the width of the weld image along the edge of the root pass image.

C.  

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.

D.  

A localized darker density with fuzzy edges in the center of the width of the weld image.

A.  

Nozzles, ring-grooves, and grind-out areas.

B.  

Lap joint welds and uphill welding.

C.  

Butt welds (single and double bevel) and plug welds.

D.  

Fillet welds, J-welds, and seal welds.

A.  

Whether postweld heat treatment (PWHT) will be needed.

B.  

Whether preheat will be needed.

C.  

The theoretical carbon content of a steel.

D.  

The weldability of a steel, based on carbon content.

A.  

Lamellar tearing

B.  

Hydrogen cracking

C.  

Sulfite stringers

D.  

Hot cracking

A.  

Parallel

B.  

Scarf

C.  

Flare

D.  

Bevel

A.  

E7048-H4

B.  

E7048

C.  

E7018-A1

D.  

E7018

A.  

An area next to the heat-affected zone that has suffered some softening and loss of strength.

B.  

The microstructure of the weld that has been melted and will therefore have properties more like a casting than the base metal.

C.  

An area near the heat-affected zone affected by welding that may experience intergranular corrosion.

D.  

The high residual stress zone adjacent to the weld fusion line that will have higher hardness than the weld or base material.

A.  

Groove angle

B.  

Joint penetration

C.  

The weld body

D.  

Complete penetration