Certified Welder Welding Code Standards & Inspection 2

Question 1

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

Accepted Answer

225°F (107°C)

Answer

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

Question 2

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

Accepted Answer

Clause 5

Answer

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

Question 3

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

Accepted Answer

Groove depth or weld size

Answer

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

Question 4

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

Accepted Answer

The engineer of record or designated inspector

Answer

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

Question 5

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

Accepted Answer

Evaluate notch toughness (impact resistance)

Answer

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

Certified Welder Practice Test