API API-577 Übungsprüfungen
Zuletzt aktualisiert am 07.05.2025- Prüfungscode: API-577
- Prüfungsname: Welding Inspection and Metallurgy Exam
- Zertifizierungsanbieter: API
- Zuletzt aktualisiert am: 07.05.2025
Question #41
At least how far on each side of the weld should preheat be maintained?
- A . 2 in. (5.1 cm)
- B . 3 in. (7.6 cm)
- C . 4 in. (10.2 cm)
- D . 6 in. (15.2 cm)
Question #42
For hot tap and in-service welding, above what carbon equivalent limit is it recommended to use extra low hydrogen electrodes to weld carbon steels?
- A . 0.30%
- B . 0.35%
- C . 0.42%
- D . 0.48%
Question #43
How much should each pass of the transducer overlap the previous path during a weld scan?
- A . 5% of the transducer element dimension.
- B . 10% of the transducer element dimension.
- C . 15% of the transducer element dimension.
- D . 20% of the transducer element dimension.
Question #44
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 . 1%-10%
- B . 5%-20%
- C . 8%-18%
- D . 15%-20%