API API-577 Übungsprüfungen
Zuletzt aktualisiert am 06.05.2025- Prüfungscode: API-577
- Prüfungsname: Welding Inspection and Metallurgy Exam
- Zertifizierungsanbieter: API
- Zuletzt aktualisiert am: 06.05.2025
Which of the following is a hazard associated with in-service welding on a carbon steel pipe containing chlorine?
- A . Explosion or unstable reaction with the addition of localized heat.
- B . Exothermic decomposition or explosion.
- C . Carbon steel will burn in the presence of chlorine and high heat.
- D . Hydrogen released during welding process can initiate hydrogen-assisted cracking.
What is the minimum liquid level that should be maintained above the area that is to be hot tapped on a storage tank or vessel?
- A . 1 ft. (300 mm)
- B . 2 ft. (600 mm)
- C . 3 ft. (900 mm)
- D . 4 ft. (1200 mm)
If a test specimen from a welded coupon should fail during PQR mechanical tests:
- A . Three out of four of the required test specimens must pass.
- B . The test coupon fails and a new coupon is required.
- C . Two additional test specimens from the coupon must be tested and pass.
- D . The WPS fails.
Base metals are assigned P-numbers by the ASME Code, Section IX to reduce the number of:
- A . Required welding procedure specifications.
- B . Required welding procedure qualifications.
- C . Required procedure and performance qualifications.
- D . Required mechanical tests.
Which of the following statements is true?
- A . PQRs qualified on P8 materials also qualify for P1 materials.
- B . Welding procedures must be supported by more than one PQR.
- C . All PQRs must be qualified with impact testing.
- D . One PQR may support several WPSs.
A four-digit designation for a SMAW electrode under AWS classification uses the third digit to define the:
- A . Coating characteristics.
- B . Chemical composition.
- C . Strength of the filler metal.
- D . Welding position.
In alloy steel, a high hardness measurement could indicate:
- A . A correlation to a low tensile strength.
- B . The presence of untempered martensite.
- C . The Brinell test device was struck too hard with the hammer.
- D . The presence of tempered martensite.
Which of the following is a commonly accepted advantage of flux core arc welding (FCAW)?
- A . Equipment is simple, inexpensive, and portable.
- B . The slag supports and shapes the weld bead.
- C . There is a reduced requirement for ventilation.
- D . There is minimal postweld cleanup.
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 . Pulsed droplet transfer
- B . Short circuiting transfer
- C . Globular transfer
- D . Spray transfer
What does an AWS classification number identify?
- A . Electrode diameter and strength
- B . Electrodes and welding rods
- C . Chemical composition of the deposited weld metal
- D . Base metal and group number