The inspection interval between internal or on-stream inspection shall not exceed which of the following?

Fillet welded on patches require special design considerations, especially relating to which of the following?

What can be done to extend the life of a vessel with a corroded area in the shell plate 6 inches from the weld, a joint efficiency of less than 1, and a corrosion thickness currently near the minimum required thickness?

Whose authorization is required as a minimum prior to the start of any repairs or alterations?

When developing an inspection plan for equipment operating at elevated temperatures, ____________ having knowledge of elevated temperature and metallurgical effects on vessel materials of construction should be consulted