API API-577 Online Practice Questions and Exam Preparation

API API-577 Online Questions & Answers

• Question 101:

  The direction of magnetic flux can be confirmed by the use of a:

  A. Pie gauge.
  B. Magnetic-field-sensitive crayon.
  C. Flux line sensitizer.
  D. Calibration gauge.
  A. Pie gauge.

• Question 102:

  One of the main differences between welding nickel alloys and austenitic stainless steels is that with nickel alloys:

  A. Interpass temperature control is not needed.
  B. There is less susceptibility to cracking from contaminants.
  C. There is less susceptibility to lack of fusion.
  D. The weld pool tends to be sluggish.
  D. The weld pool tends to be sluggish.

• Question 103:

  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
  D. Just adjacent to the toe of the weld

• Question 104:

  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
  B. Electrodes and welding rods

• Question 105:

  What is the maximum temperature at which ACFM may be used?

  A. 300°F (150°C)
  B. 500°F (260°C)
  C. 900°F (480°C)
  D. 1000°F (540°C)
  B. 500°F (260°C)

• Question 106:

  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.
  A. Explosion or unstable reaction with the addition of localized heat.

• Question 107:

  Which of the following has the lowest range of welding currents and electrode diameters associated with the GMAW process?

  A. Short circuiting transfer
  B. Pulsed droplet transfer
  C. Globular transfer
  D. Spray transfer
  A. Short circuiting transfer

• Question 108:

  A crack with its major axis oriented approximately perpendicular to the weld axis is called a:

  A. Lamellar crack.
  B. Non-directional crack.
  C. Transverse crack.
  D. Perpendicular crack.
  C. Transverse crack.

• Question 109:

  If a nonessential variable is changed on a WPS, which of the following actions must occur?

  A. The welding inspector can simply make the change on the WPS and initial as proof of acceptance.
  B. It may be changed on the WPS without requalifying the welding procedure.
  C. The welding procedure will need to be requalified by performing mechanical testing.
  D. Impact testing must be performed at the discretion of the welding engineer.
  B. It may be changed on the WPS without requalifying the welding procedure.

• Question 110:

  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.
  C. Ultimate tensile strength.