API 653 Closed Book Exam Master Guide: Aboveground Storage Tank (AST)
Integrity Assessment, Inspection Intervals, Risk-Based Inspection (RBI),
Storage Tank Engineer Responsibilities, API 650 Construction Compliance,
API 579 Fitness-for-Service (FFS), Shell-to-Bottom Weld Evaluation, Tank
Bottom Corrosion Mechanisms, Cathodic Protection Systems, Release
Prevention Systems (RPS), Internal Floating Roof Design, Hydrostatic
Testing Requirements, Vacuum Box Testing Procedures, Radiographic
Testing (RT), Ultrasonic Testing (UT), Magnetic Particle Inspection (MPI),
Liquid Penetrant Testing (PT), Welding Procedure Specification (WPS),
Procedure Qualification Record (PQR), Welder Performance Qualification
(WPQ), Controlled Deposition Welding, Post Weld Heat Treatment (PWHT),
Lapped Patch Repair Design, Shell Distortion Analysis, Settlement
Evaluation, Nozzle Installation and Reinforcement, Flange and Material
Selection, Structural Integrity and Fatigue Analysis, Corrosion Rate
Determination, Similar Service Method, Inspection Hold Points, API 2201
Hot Work Safety Exam Questions Verified and Provided with Complete A+
Graded Answers Latest Updated 2026
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
0.1 inch reference table 4.4 API 653
when a full hydrostatic test is required, it shall be held for
24-hours reference 12.3.1 API 653
,how many radiographs shall be taken in a square 2 in x 24 in but welded insert play in a 1-inch
thick shell
6 total one horizontal one vertical one in each corner : reference 12.2.1.6.2 API 653
what is the minimum number of radiographs that shall be taken on a circular but welded insert
plate in a shell 1/2 in thick
one : reference 12.2.16 .1 API 653
how much time do you need to keep the radiographs of a reconstructed tank
1 year reference 13.2.3 API 653
who should conduct visual inspection and review and NDE results?
the authorized inspector
how much time should the operator keep the cathodic protection records
5 years
minimum diagnostic length of a radiograph is
6 inches
the total metal lost / the period of time over which the metal loss occurred is the
, corrosion rate
the presence of rock under the steel bottom of an AST would have what effect
promote severe Underside corrosion
when do you use thin-film linings
when the tank is new or has light corrosion
a formal visual external inspection by an authorized inspector shall be made
at least every five years or RCA / 4N years whichever is less
radiographic density shall be check by densitometer calibrated on a step wedge film traceable
to
a National Standard
a welder deposits more metal than Allowed by the WPS what should be done
re-qualify the welder
what is the maximum critical length for plate thickness determination
40 inches
Integrity Assessment, Inspection Intervals, Risk-Based Inspection (RBI),
Storage Tank Engineer Responsibilities, API 650 Construction Compliance,
API 579 Fitness-for-Service (FFS), Shell-to-Bottom Weld Evaluation, Tank
Bottom Corrosion Mechanisms, Cathodic Protection Systems, Release
Prevention Systems (RPS), Internal Floating Roof Design, Hydrostatic
Testing Requirements, Vacuum Box Testing Procedures, Radiographic
Testing (RT), Ultrasonic Testing (UT), Magnetic Particle Inspection (MPI),
Liquid Penetrant Testing (PT), Welding Procedure Specification (WPS),
Procedure Qualification Record (PQR), Welder Performance Qualification
(WPQ), Controlled Deposition Welding, Post Weld Heat Treatment (PWHT),
Lapped Patch Repair Design, Shell Distortion Analysis, Settlement
Evaluation, Nozzle Installation and Reinforcement, Flange and Material
Selection, Structural Integrity and Fatigue Analysis, Corrosion Rate
Determination, Similar Service Method, Inspection Hold Points, API 2201
Hot Work Safety Exam Questions Verified and Provided with Complete A+
Graded Answers Latest Updated 2026
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
0.1 inch reference table 4.4 API 653
when a full hydrostatic test is required, it shall be held for
24-hours reference 12.3.1 API 653
,how many radiographs shall be taken in a square 2 in x 24 in but welded insert play in a 1-inch
thick shell
6 total one horizontal one vertical one in each corner : reference 12.2.1.6.2 API 653
what is the minimum number of radiographs that shall be taken on a circular but welded insert
plate in a shell 1/2 in thick
one : reference 12.2.16 .1 API 653
how much time do you need to keep the radiographs of a reconstructed tank
1 year reference 13.2.3 API 653
who should conduct visual inspection and review and NDE results?
the authorized inspector
how much time should the operator keep the cathodic protection records
5 years
minimum diagnostic length of a radiograph is
6 inches
the total metal lost / the period of time over which the metal loss occurred is the
, corrosion rate
the presence of rock under the steel bottom of an AST would have what effect
promote severe Underside corrosion
when do you use thin-film linings
when the tank is new or has light corrosion
a formal visual external inspection by an authorized inspector shall be made
at least every five years or RCA / 4N years whichever is less
radiographic density shall be check by densitometer calibrated on a step wedge film traceable
to
a National Standard
a welder deposits more metal than Allowed by the WPS what should be done
re-qualify the welder
what is the maximum critical length for plate thickness determination
40 inches
