API 575 Section 3

Question 1

A tank alteration is any work that:

A. restores a tank to a suitable condition
B. changes the physical dimensions of a tank
C. involves the critical zone of the tank
D. involves the tank shell

Answer 1

B. changes the physical dimensions of a tank (3.1)

Question 2

Per API 653, the generic definition of atmospheric pressure is pressures up to:

A. 0.05 psig
B. 0.5 psig
C. 2.5 psig
D. 15 psig

Answer 2

C. 2.5 psig (3.3)

Question 3

Per API 575, a condition monitoring location (CML):

A. is a single small area (eg. 2” diameter) on a tank shell
B. is a single small area (eg. 1” diameter) anywhere on a tank
C. can be a spot or a plane through a section of a nozzle
D. can be a spot or plane through a section of tank shell or nozzle

Answer 3

C. can be a spot or a plane through a section of a nozzle (3.8)

Question 4

Per API 575, a defect is:

A. any indication
B. any imperfection
C. any indication that is measurable
D. any indication that exceeds code acceptance criteria

Answer 4

D. any indication that exceeds code acceptance criteria (3.14)

Question 5

Which of the following can be considered a Release Prevention Barrier? (more than one correct)

A. Cathodic protection
B. Clay liner
C. Double steel bottom
D. Leak detection piping under the tank

Answer 5

B. Clay liner and C. Double steel bottom (3.41)

Question 6

A tank repair is any work that:

A. restores a tank to a suitable condition
B. changes the physical dimensions of a tank
C. involves the critical zone of the tank
D. involves the tank shell

Answer 6

A. restores a tank to a suitable condition (3.42)

Question 7

What are the basic factors of Risk?

A. consequence and probability of failure
B. consequence and probability of sections of the tank being below tmin
C. potential costs to repair and potential impact for a negative public image
D. potential for leaks due to corrosion and leaks due to operator error

Answer 7

A. consequence and probability of failure (3.43)