API API-577 Practice Exams
Last updated on Oct 22,2026- Exam Code: API-577
- Exam Name: Welding Inspection and Metallurgy Exam
- Certification Provider: API
- Latest update: Oct 22,2026
Question #41
API Recommended Practice 577 provides:
- A . A definition of welds that should be inspected in refinery and chemical plant equipment.
- B . A definition of specific techniques and practices that should be used for welding inspection.
- C . Guidance on the extent and scope of inspection required for specific types of welds.
- D . Guidance on welding inspection during the fabrication and repairing of refinery equipment and piping.
Question #42
Items to be included in the PQR for the SMAW process are:
- A . Welding process used and AWS classification numbers.
- B . Welding process used and P-numbers of coupon welded.
- C . P-numbers of coupon welded and AWS classification numbers.
- D . Electrode-flux class and electrical characteristics.
Question #43
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.
Question #44
The distance the weld metal extends from the weld face into a joint, exclusive of weld reinforcement is called:
- A . Groove angle
- B . Joint penetration
- C . The weld body
- D . Complete penetration
Question #45
Which of the following statements concerning electrode storage in ovens is true?
- A . Electrodes should never be stored in an oven that is used for food storage.
- B . Low-hydrogen electrodes may be stored in ovens with cellulose-based electrodes, but must be in their original, unopened containers.
- C . Electrode ovens should be heated by any means, but must have automatic heat controls and visible temperature indicators.
- D . Low-hydrogen electrodes should never be stored with stainless-steel electrodes.
Question #46
What increases when a welder increases the amperage?
- A . Voltage
- B . Arc length
- C . Heat
- D . Travel speed
Question #47
General awareness of metallurgy is important to the welding inspector because:
- A . Welding processes can affect both mechanical and corrosion properties of a weldment.
- B . The crystalline structure of base metals affects the resulting structure of the weld.
- C . Physical properties of the final weldment can be significantly affected by preheat and postweld heat treatment (PWHT).
- D . A thorough knowledge of weld metal structures is necessary to understand weldability.
Question #48
For design purposes, the maximum usefulness of a weldment under test is based upon the:
- A . Yield strength.
- B . Hardness.
- C . Ultimate tensile strength.
- D . Toughness.
Question #49
The WPS gives the welder specific guidelines to:
- A . Set the machine amperage, voltage, and travel speed.
- B . Confirm the project heat input is followed during welding.
- C . Successfully complete production welds.
- D . Make imperfection/defect-free welds.
Question #50
Which of the following determines the necessity for preheat and postweld heat treatment?
- A . The percentage of carbon that will be in the completed weld
- B . The as-rolled hardness of the welding components
- C . The carbon equivalent of the steel
- D . The rate of cooling after the welding is completed