ASME PCC-2 Art. 212 and 304

A fillet welded patch must overlap sound base metal by:

• at least 1”

• at least 2”

• the greater or 2T or 2”

• the greater of 2T of 4”

A fillet-welded patch covering a corroded area:

• should extend into sound metal by 3”.

• must be the same thickness as the equipment wall.

• should be of the same or similar material as the equipment wall.

• in alloy service must be the same material as the equipment wall.

The minimum thickness of a fillet-welded patch is:

• the thickness of the equipment wall loss.

• the nominal thickness of the equipment wall.

• twice the nominal thickness of the equipment wall.

• based on the calculated needed size of the attachment welds.

A fillet welded patch is installed on a 10’ diameter vessel. The vessel wall thickness is 0.750”.
Per PCC-2, how far must this patch be from an existing fillet welded patch?

• 12.4"

• 18.7"

• 13.4"

• 6.5"

When grinding out a flaw, uneven and rough finishes could result in a failure by:

• fatigue

• erosion

• temper embrittlement

• galvanic corrosion

A flaw is removed by grinding on a carbon steel material. This grinding wheel should:

• not be used again.

• examined with PT for cracking.

• only be used in the future on the same materials (ASTM no. & grade).

• not be used on austenitic stainless materials.

A small crack is going to be removed by grinding. Which of the following is correct?

• The excavated area must be repaired with weld-buildup.

• When performing weld buildup in this area, the GTAW process must be used.

• If weld buildup is not used, the edges of the excavated area must have a 3:1 taper.

• Small crack must be repaired with weld build up