API API-577 Online Practice Questions and Exam Preparation

API API-577 Online Questions & Answers

• Question 11:

  P-numbers are based on which of the following?

  A. Comparable base metal characteristics
  B. Weldability characteristics of base metal
  C. Electrode characteristics
  D. Chemical composition of the base metal
  B. Weldability characteristics of base metal

• Question 12:

  If an individual changes an essential variable in the WPS, the individual must:

  A. Re-qualify the PQR.
  B. Re-qualify the WPS.
  C. Record the change on the existing WPS.
  D. List the change as a supplement to the WPS.
  B. Re-qualify the WPS.

• Question 13:

  For what maximum outside diameter may a radiographic technique be used in which the radiation passes through two walls and the weld in both walls is viewed for acceptance?

  A. 1.5 in. (38.0 mm)
  B. 2.5 in. (63.5 mm)
  C. 3 in.(76.2 mm)
  D. 3.5 in. (90.0 mm)
  C. 3 in.(76.2 mm)

• Question 14:

  Which source of radiation is normally used for performing field radiography on steel with a 4-in. thickness?

  A. Selenium 75
  B. Cobalt 60
  C. Iridium 192
  D. X-ray machine
  B. Cobalt 60

• Question 15:

  Heating a round bar to an elevated temperature and then quenching one end is a test method to determine:

  A. Hardenability.
  B. Temper embrittlement.
  C. Heat treatability.
  D. Thermal conductivity.
  A. Hardenability.

• Question 16:

  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.
  B. The slag supports and shapes the weld bead.

• Question 17:

  ACFM is an NDE technique ideal for inspecting:

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

• Question 18:

  Hot tapping and in-service welding should be carried out only with:

  A. Steels that have a carbon equivalent below 0.30.
  B. Cellulosic-type electrodes to reduce penetration.
  C. Low-hydrogen consumables and electrodes.
  D. Low-hydrogen root pass and cellulosic weld out.
  C. Low-hydrogen consumables and electrodes.

• Question 19:

  The deflection of an arc from its normal path that is a result of magnetic forces is referred to as:

  A. Arc drift.
  B. Arc strike.
  C. Arc blow.
  D. Arc deflection.
  C. Arc blow.

• Question 20:

  Codes/standards sometimes specify impact testing of weldments at minimum design metal temperatures to:

  A. Assure that the welded material has sufficient yield strength to avoid brittle fracture.
  B. Assure that the welded material has sufficient ductility to assist brittle fracture.
  C. Assure that the welded material has sufficient toughness to resist brittle fracture.
  D. Assure that the welded material has sufficient tensile strength to avoid failure at design loads.
  C. Assure that the welded material has sufficient toughness to resist brittle fracture.