Free Welding Inspection and Metallurgy Exam API-577 Exam Practice Test

The simplest weldability tests are those that evaluate:

• Porosity and slag inclusions of the weld.
• Cracking and corrosion resistance of the weld.
• Strength and ductility of the weld.
• Ductility and hardness of the weld.

For design purposes, the maximum usefulness of a weldment under test is based upon the:

• Yield strength.
• Hardness.
• Ultimate tensile strength.
• Toughness.

A welding engineer or inspector should be notified when a weld has failed a weld quality test more than how many times in order to help determine the cause of the test failure?

• ONCE
• TWICE
• THREE TIMES
• FOUR TIMES

A-number groupings are based upon the:

• Chemical composition of the deposited weld metal.
• Comparable base metal ultimate strength values.
• Weldability characteristics of the metal.
• Type and strength of base metal.

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

• Hardenability.
• Temper embrittlement.
• Heat treatability.
• Thermal conductivity.

Which of the following is a practical solution that could prevent or reduce lack of fusion in carbonsteel during the weld process?

• Reduce travel speed
• Provide proper heat input
• Avoid excessive weaving
• Use proper joint design

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

• Pie gauge.
• Magnetic-field-sensitive crayon.
• Flux line sensitizer.
• Calibration gauge.

Where is the weld HAZ assumed to be for purposes of hardness testing?

• 0.25 inch on either side of the fusion zone
• 0.25 inch away from the toe of the weld into the base metal
• 1 inch on either side of the centerline of the weld
• Just adjacent to the toe of the weld

The change in shape (deformation) that a test specimen experiences when it is stressed or loaded is called:

• Yield.
• Strain.
• Stress.
• Plasticity.

Which of the following weld flaws is described as a subsurface terrace and step-like crack weakened by dispersed planar-shaped inclusions?

• Lamellar tearing
• Hydrogen cracking
• Sulfite stringers
• Hot cracking