API 650 Welded Steel tanks for Oil Storage

Question 1

41. How much higher than the surrounding ground should the surface on which the tank bottom rests be located? (API 650-13, Section B.3.1)

Question 2

42. What are three reasons for having the surface on which the tank bottom rests higher than the surrounding ground? (API 650-13, Section B.3.1)

a)
b)
c)

Question 3

43. What type of material is recommended for the surface on which the tank bottom plates will rest? What types of materials should be avoided? (API 650-13, Section B.3.2)

Question 4

44. The finished tank grade should be crowned from its outer periphery to its center. What are two reasons for doing this? (API 650-13, Section B.3.3)

Question 5

45. Under what conditions may satisfactory foundations for aboveground tanks be constructed from earth materials? (API 650-13, Section B.4.1.1)

Question 6

What are four things that an acceptable earth foundation should accomplish? (API 650-13, Section B.4.1.1)
a)
b)
c)
d)

Question 7

What are five advantages of a concrete ringwall? (API 650-13, Section B.4.2.1) Which of these advantages also apply to a crushed stone or gravel ringwall? (API 650-13,
Section B.4.3.1)
a)
b)
c)
d)
e)

Question 8

Appendix M specifies additional requirements for tanks operating in what temperature range? (API 650-13, Section M.1.1)