API 653 RECERTIFICATION EXAMINATION
TEST 2026 QUESTIONS WITH SOLUTIONS
GRADED A+
⩥ New welds attaching existing shell plates to existing or new shell
plates should follow what two inspection methods? Answer: Visual and
RT
⩥ When a tank bottom is removed by using arc-gauging, the areas of the
tanks shell-to- bottom weld shall be? Answer: Magnetic-particle
examined and defective areas repaired and re-examined
⩥ At what frequency shall visible and fluorescent light meters used with
liquid penetrant testing be calibrated. Answer: A min. of once a year.
⩥ Fitness for service evaluations may be used to exempt a repair from
hydrostatic testing if performed by a? Answer: Engineer experienced in
tank design and evaluation methodologies used.
⩥ Flame arrestors should be inspected when? Answer: At appropriate
intervals.
⩥ When corrosion is found on the underside of a tank roof and the top
side of the tank shell, structural members such as roof girders and rafters
,will most likely be thinning at what rate? Answer: Twice the rate of the
roof or shell.
⩥ Assessment of internal tank settlement requires placement of
measurement points across the tank diameter at intervals of not more
than? Answer: 10 feet
⩥ In a API standard 653 repair a replacement plate meets but does not
cross a horizontal weld. prior to welding of a new vertical joint the
horizontal weld should be cut beyond the new vertical joint at min.
length of? Answer: 12 inches
⩥ Surface prep, anchor patterns typically required for coatings are
generally how many mils. deep? Answer: 1.5-4 Mils.
⩥ A limitation of PT is that standard penetrant systems are limited to
welds having a max temp. of? Answer: 125°F
⩥ In calibrating magnetizing equipment ammeter, what is the max
deviation allowed relative to the actual current value as shown by the
test meter? Answer: +/- 10%of full scale
⩥ The max deposition rate for pulsed arc transfer mode is? Answer:
About 200 in./min.
, ⩥ Consequence factors to consider in an RBI assessment of a tank
include? Answer: Mode of failure
⩥ The pattern of caustic cracking observed on the steel surface appears
sometimes as cracks that? Answer: Have spider-web appearance
initiating at weld flaws.
⩥ When a in-service tank inspection is performed, what is the
recommended method of documenting leaks on a riveted shell? Answer:
Locate leaks by sketch or photo.
⩥ An example of a non-essential variable for a tank bottom scanner
qualification test is? Answer: Plate cleanliness.
⩥ The annual cathodic protection surveys for a impressed current system
may? Answer: Include one or more electrical measurements performed
previously in the initial survey.
⩥ For tank repairs, safeguards for personal health and safety, and
prevention of property damage shall be developed to the guidelines
given in which standard. Answer: API 2015 and API 2217A
⩥ How far beyond the outer periphery of the foundation ring wall should
the drip ring extend? Answer: 3 inches
TEST 2026 QUESTIONS WITH SOLUTIONS
GRADED A+
⩥ New welds attaching existing shell plates to existing or new shell
plates should follow what two inspection methods? Answer: Visual and
RT
⩥ When a tank bottom is removed by using arc-gauging, the areas of the
tanks shell-to- bottom weld shall be? Answer: Magnetic-particle
examined and defective areas repaired and re-examined
⩥ At what frequency shall visible and fluorescent light meters used with
liquid penetrant testing be calibrated. Answer: A min. of once a year.
⩥ Fitness for service evaluations may be used to exempt a repair from
hydrostatic testing if performed by a? Answer: Engineer experienced in
tank design and evaluation methodologies used.
⩥ Flame arrestors should be inspected when? Answer: At appropriate
intervals.
⩥ When corrosion is found on the underside of a tank roof and the top
side of the tank shell, structural members such as roof girders and rafters
,will most likely be thinning at what rate? Answer: Twice the rate of the
roof or shell.
⩥ Assessment of internal tank settlement requires placement of
measurement points across the tank diameter at intervals of not more
than? Answer: 10 feet
⩥ In a API standard 653 repair a replacement plate meets but does not
cross a horizontal weld. prior to welding of a new vertical joint the
horizontal weld should be cut beyond the new vertical joint at min.
length of? Answer: 12 inches
⩥ Surface prep, anchor patterns typically required for coatings are
generally how many mils. deep? Answer: 1.5-4 Mils.
⩥ A limitation of PT is that standard penetrant systems are limited to
welds having a max temp. of? Answer: 125°F
⩥ In calibrating magnetizing equipment ammeter, what is the max
deviation allowed relative to the actual current value as shown by the
test meter? Answer: +/- 10%of full scale
⩥ The max deposition rate for pulsed arc transfer mode is? Answer:
About 200 in./min.
, ⩥ Consequence factors to consider in an RBI assessment of a tank
include? Answer: Mode of failure
⩥ The pattern of caustic cracking observed on the steel surface appears
sometimes as cracks that? Answer: Have spider-web appearance
initiating at weld flaws.
⩥ When a in-service tank inspection is performed, what is the
recommended method of documenting leaks on a riveted shell? Answer:
Locate leaks by sketch or photo.
⩥ An example of a non-essential variable for a tank bottom scanner
qualification test is? Answer: Plate cleanliness.
⩥ The annual cathodic protection surveys for a impressed current system
may? Answer: Include one or more electrical measurements performed
previously in the initial survey.
⩥ For tank repairs, safeguards for personal health and safety, and
prevention of property damage shall be developed to the guidelines
given in which standard. Answer: API 2015 and API 2217A
⩥ How far beyond the outer periphery of the foundation ring wall should
the drip ring extend? Answer: 3 inches
