Certified Welder Welding Codes and Standards 2

Question 1

Under AWS D1.1, what is the minimum preheat temperature required for ASTM A36 steel with thickness greater than 1.5 inches when welding with SMAW?

Accepted Answer

150°F (65°C)

Answer

50°F (10°C)

Answer

225°F (107°C)

Answer

300°F (149°C)

Question 2

Which ASME code section specifically governs the welding of pressure vessels?

Accepted Answer

Section VIII

Answer

Section I

Answer

Section IX

Answer

Section XI

Question 3

What does the term 'essential variable' mean in the context of a Welding Procedure Specification (WPS)?

Accepted Answer

A variable whose change requires requalification of the procedure

Answer

A variable that improves weld quality

Answer

A variable listed in the base metal grouping

Answer

A variable that is optional to document

Question 4

According to AWS D1.1, visual inspection of a weld must be performed by a person with minimum vision of:

Accepted Answer

20/40 corrected or uncorrected vision in at least one eye

Answer

20/20 corrected vision only

Answer

20/30 uncorrected vision

Answer

No specific vision requirement is stated

Question 5

A Procedure Qualification Record (PQR) documents the:

Accepted Answer

Variables used and test results from a qualification weld

Answer

Welding instructions given to the welder

Answer

Welder's personal certification history

Answer

List of approved filler metals for a project

Question 6

Under AWS D1.1, which discontinuity type is considered a 'crack' and is always rejectable regardless of size?

Accepted Answer

Longitudinal crack in the weld metal

Answer

Porosity

Answer

Undercut

Answer

Lack of fusion

Question 7

Which AWS standard governs structural welding of sheet steel?

Accepted Answer

AWS D1.3

Answer

AWS D1.1

Answer

AWS D1.5

Answer

AWS D1.8