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

What is the Brinell hardness limit value for 1-1/4 Cr -1/2 Mo steel in refining service?

• 200
• 215
• 225
• 241

A four-digit designation for a SMAW electrode under AWS classification uses the third digit to define the:

• Coating characteristics.
• Chemical composition.
• Strength of the filler metal.
• Welding position.

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

• Re-qualify the PQR.
• Re-qualify the WPS.
• Record the change on the existing WPS.
• List the change as a supplement to the WPS.

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

Crater cracks typically occur:

• In weld metal at the point where the arc terminates.
• In the HAZ at the point where the arc initiates.
• In weld metal at the point where the arc initiates.
• In the HAZ at the point where the arc terminates.

Which of the following is a hazard associated with in-service welding on a carbon steel pipe containing chlorine?

• Explosion or unstable reaction with the addition of localized heat.
• Exothermic decomposition or explosion.
• Carbon steel will burn in the presence of chlorine and high heat.
• Hydrogen released during welding process can initiate hydrogen-assisted cracking.

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

• Arc drift.
• Arc strike.
• Arc blow.
• Arc deflection.

What term is used to describe the mechanical working of metals using impact blows?

• Hammering
• Mechanical stress relieving
• Needle gunning
• Peening

In magnetic particle examination, the yoke is placed parallel to the weld to detect cracks:

• In the undercutting.
• Parallel to the weld.
• Transverse to the weld.
• In the HAZ.

What is the most appropriate action when an inspector finds improperly marked filler materials?

• Accept them if nonessential variable.
• Reject them.
• Re-qualify the WPS.
• Accept them if the markings are corrected.