API 653 EXAM QUESTIONS WITH
100% CORRECT ANSWERS
GUARANTEED PASS
when a new tank has no release prevention systems, the interval from initial service
until the initial internal inspection shall not exceed years - Answer-10
when a tank has a release prevention system consisting of an original nominal bottom
thickness 5/16 inch or greater, what is the initial internal inspection interval - Answer-12
years
when a tank has an RPS consisting of cathodic protection of the soil side of the primary
tank bottom, which is the initial internal inspection interval - Answer-12 years
when a tank has an RPS consisting of a thin film lining of the product side of the tank
bottom, which is the initial internal inspection interval - Answer-12 years
when a tank has an RPS consisting of fiberglass reinforced lining of the product side of
the tank bottom, which is the initial internal inspection interval - Answer-13 years
when a tank has an RPS consisting of cathodic protection plus a thin film lining, which is
the initial internal inspection interval - Answer-14 years
when a tank has an RPS consisting of cathodic Protection Plus fiberglass reinforced
lining, which is the initial internal inspection interval - Answer-15 years
when a tank has an RPS consisting of a release prevention barrier and a similar service
assessment, which is the initial internal inspection interval - Answer-20 years
when a tank shell has a corroded area with a thickness lower than allowed, there are 3
options, which are - Answer--damaged areas shall be repaired the
-allowable liquid level of the tank reduced
-tank retired
what is the minimum thickness for a tank floor plate with no means for leak detection or
secondary containment if an RBI program is not in place - Answer-0.1 inch reference
table 4.4 API 653
, when a tank has an RPS consisting of release prevention barrier when a risk-based
inspection was performed, which is the initial internal inspection interval - Answer-25
years
hobby assessment shall consist of a systematic evaluation of both the and
the associated consequence of failure - Answer-likelihood of failure
how many types of Records should an operator keep at all times? - Answer-3,
construction records,
inspection history and repair / alterations history
all you shall joints shall be joints with complete penetration and fusion -
Answer-butt welded
each existing shell joint should comply with - Answer-the as-built standard
who can authorize repair? - Answer-inspector or engineer experience in storage tank
design
the minimum dimension for a replacement shell plate is - Answer-12 inches
when welding shell seams, which seam should weld first: horizontal or vertical? -
Answer-vertical
lapped patch shell repairs shall not be used on any shell course thickness that exceeds
- Answer-1/2 in
lapped patch show repair plates shall not be less than - Answer-3/16 inch
the shape of the repair plate may be circular, oblong, square, or rectangular. All
Corners, except at the Shell to bottom joint, shall be rounded to a minimum radius of -
Answer-2 inches
lapped patch repair plates positioned on the shell interior shall be located such that the
toe-to-toe weld clearances are a minimum of to the shell to bottom weld -
Answer-6 inches
the minimum lapped patch repair plate Dimension is - Answer-4 inches
what is the maximum vertical dimension of a lapped patch repair plate? - Answer-48
inches
what is the maximum horizontal dimension of a lapped repair plate? - Answer-72 inches
can you put a patch plate over 1/2 inch diameter hole, then weld the inner perimeter of
the hole? - Answer-no. The whole must be at least 2 inch diameter
100% CORRECT ANSWERS
GUARANTEED PASS
when a new tank has no release prevention systems, the interval from initial service
until the initial internal inspection shall not exceed years - Answer-10
when a tank has a release prevention system consisting of an original nominal bottom
thickness 5/16 inch or greater, what is the initial internal inspection interval - Answer-12
years
when a tank has an RPS consisting of cathodic protection of the soil side of the primary
tank bottom, which is the initial internal inspection interval - Answer-12 years
when a tank has an RPS consisting of a thin film lining of the product side of the tank
bottom, which is the initial internal inspection interval - Answer-12 years
when a tank has an RPS consisting of fiberglass reinforced lining of the product side of
the tank bottom, which is the initial internal inspection interval - Answer-13 years
when a tank has an RPS consisting of cathodic protection plus a thin film lining, which is
the initial internal inspection interval - Answer-14 years
when a tank has an RPS consisting of cathodic Protection Plus fiberglass reinforced
lining, which is the initial internal inspection interval - Answer-15 years
when a tank has an RPS consisting of a release prevention barrier and a similar service
assessment, which is the initial internal inspection interval - Answer-20 years
when a tank shell has a corroded area with a thickness lower than allowed, there are 3
options, which are - Answer--damaged areas shall be repaired the
-allowable liquid level of the tank reduced
-tank retired
what is the minimum thickness for a tank floor plate with no means for leak detection or
secondary containment if an RBI program is not in place - Answer-0.1 inch reference
table 4.4 API 653
, when a tank has an RPS consisting of release prevention barrier when a risk-based
inspection was performed, which is the initial internal inspection interval - Answer-25
years
hobby assessment shall consist of a systematic evaluation of both the and
the associated consequence of failure - Answer-likelihood of failure
how many types of Records should an operator keep at all times? - Answer-3,
construction records,
inspection history and repair / alterations history
all you shall joints shall be joints with complete penetration and fusion -
Answer-butt welded
each existing shell joint should comply with - Answer-the as-built standard
who can authorize repair? - Answer-inspector or engineer experience in storage tank
design
the minimum dimension for a replacement shell plate is - Answer-12 inches
when welding shell seams, which seam should weld first: horizontal or vertical? -
Answer-vertical
lapped patch shell repairs shall not be used on any shell course thickness that exceeds
- Answer-1/2 in
lapped patch show repair plates shall not be less than - Answer-3/16 inch
the shape of the repair plate may be circular, oblong, square, or rectangular. All
Corners, except at the Shell to bottom joint, shall be rounded to a minimum radius of -
Answer-2 inches
lapped patch repair plates positioned on the shell interior shall be located such that the
toe-to-toe weld clearances are a minimum of to the shell to bottom weld -
Answer-6 inches
the minimum lapped patch repair plate Dimension is - Answer-4 inches
what is the maximum vertical dimension of a lapped patch repair plate? - Answer-48
inches
what is the maximum horizontal dimension of a lapped repair plate? - Answer-72 inches
can you put a patch plate over 1/2 inch diameter hole, then weld the inner perimeter of
the hole? - Answer-no. The whole must be at least 2 inch diameter
