Api 653 (Exam Quiz For 2024 Updated Solutions.) Prep Closed Book Only

What welds do not require welder's identification? A) All welds require identification B) Vertical welded joints which are located within the final shell course since this course will be subjected to relatively low stresses C) Roof plate welds and flanges-to-Nozzle-neck welds D) Roof Plate welds and bottom plate welds {Ans: C}A tank with cathodic protection has a second bottom added above the old floor, this tank may: A) experience accelerated corrosion on the lower floor B) experience accelerated corrosion on the upper floor C) experience accelerated corrosion on the product side D) experience a significant decrease in corrosion on both floors {Ans: B}Of the following what has historically not been a cause of bottom failures? A) Non-homogeneous fill under the tank bottom B) Rock or gravel foundation pads with inadequately filled-in surface voids C) Inadequate inspection frequency D) Inadequately supported sumps {Ans: C}Distortion of anchor bolts adn excessive cracking of concrete structures may be indications of what two conditions? A) Serious foundation settlement of a tank overpressure uplift condition B) Inferior material used in the anchor bolts and the concrete structure C) Over tightening of the anchor bolts and improper mixing of the concrete D) The tank