Welding Code Standards & Inspection Flashcards

Under AWS D1.1, what is the minimum preheat temperature for ASTM A514 steel with thickness over 2.5 inches?

Answer: 225°F (107°C)

AWS D1.1 Table 4.2 requires a minimum preheat of 225°F (107°C) for A514 steel over 2.5 inches thick.

Which AWS D1.1 provision governs the repair of unacceptable welds?

Answer: Clause 5

AWS D1.1 Clause 5 covers weld quality, repair procedures, and the removal of unacceptable welds.

What does a 'V' groove weld symbol with a number below the reference line indicate?

Answer: Groove depth or weld size

A number below the reference line on a groove weld symbol indicates the groove depth or effective throat (weld size).

According to AWS D1.1, who has the authority to approve welding procedures used on structural steel?

Answer: The engineer of record or designated inspector

The engineer of record or the inspector designated by the engineer must approve all WPSs used on structural steel projects.

What is the purpose of the Charpy V-notch (CVN) test in weld qualification?

Answer: Evaluate notch toughness (impact resistance)

The CVN test measures the energy absorbed during fracture, indicating the toughness of the weld metal at a specified temperature.

Under ASME Section IX, a welder who fails a qualification test may retest after:

Answer: Documented additional training or practice, then one retest is allowed

ASME Section IX allows one immediate retest if the welder demonstrates additional training or practice has occurred.

Which destructive test method is used to evaluate the root and face bend quality of a groove weld coupon?

Answer: Guided bend test

The guided bend test bends specimens around a mandrel to reveal cracks or discontinuities in the root, face, or side of the weld.