API API-577 Übungsprüfungen
Zuletzt aktualisiert am 24.04.2025- Prüfungscode: API-577
- Prüfungsname: Welding Inspection and Metallurgy Exam
- Zertifizierungsanbieter: API
- Zuletzt aktualisiert am: 24.04.2025
Question #21
Which welding process has been associated most with lack of fusion with shop-fabricated piping?
- A . GMAW-S
- B . GMAW-SF
- C . FCAW
- D . FCAW-SW
Question #22
What is a sensitized microstructure in austenitic stainless steels?
- 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.
Question #23
In hardness testing of carbon steel weldment specimens, there is an approximate relationship between hardness and:
- A . Toughness
- B . Tensile strength
- C . Ductility
- D . Yield strength
Question #24
Which of the following is a practical solution to eliminate or reduce porosity when welding carbon steel?
- A . Reduce travel speed
- B . Proper shielding
- C . Lower heat input
- D . Arc length control
Question #25
The weld symbol represents which type of weld groove?
- A . Parallel
- B . Scarf
- C . Flare
- D . Bevel
Question #26
When welding nickel alloys, it is important that:
- A . The bevel angle be wide enough to allow oscillation of welding torch.
- B . The cooling rate be controlled in order to prevent rapid cooling.
- C . Preheating is always performed to prevent hot cracking.
- D . A wide face and thinner bevel be used.
Question #27
Where is the weld HAZ assumed to be for purposes of hardness testing?
- A . 0.25 inch on either side of the fusion zone
- B . 0.25 inch away from the toe of the weld into the base metal
- C . 1 inch on either side of the centerline of the weld
- D . Just adjacent to the toe of the weld
Question #28
Refer to the following diagram:
Item#1 represents:
- A . root opening.
- B . root weld size.
- C . groove weld size.
- D . root face.
Question #29
A “mill certificate" is a/an:
- A . Analysis of the chemical elements in an ingot.
- B . Chemical analysis of a base metal to be welded.
- C . List of the chemical and mechanical properties specified by a purchaser.
- D . Product analysis of mechanical properties of a base metal.
Question #30
For carbon steels, the HAZ includes those regions heated to a temperature greater than:
- A . 1050°F (556°C)
- B . 1150°F (621°C)
- C . 1250°F (677°C)
- D . 1350°F (730°C)