API 653 EXAM PREP CLOSED BOOK ONLY (API 653
EXAM TEST QUESTIONS - CLOSED BOOK) LATEST
QUESTIONS & ANSWERS VERIFIED 100%
CORRECT.
1. "That property of a ferrous alloy that determines the
depth and distribution of hardness induced by quenching" is
a definition of:
A) Hardness
B) Tempering
C) Upper transformation limit
D) Hardening or hardenability
2. A defect typically designates:
A) Minimum acceptability
B) An indication that is detectable but acceptable
C) An indication that is rejectable
D) Indication that requires further investigation
3. A discontinuity is an interruption of the typical structure
of a material and:
A) Is considered a defect
B) Is reason for rejection
C) Is not necessarily considered a defect
D) Is usually crack like in appearance
,4. A lap patch is installed on a tank bottom and the patch
plate crosses a tank bottom weld. What is the minimum
dimension for this patch-plate?
A) Any size
B) 6"
C) 10"
D)12"
5. A minimum service life ___ years should be expected from
a properly selected and applied lining system.
A) 20
B) 25
C) 30
D) 50
6. A multiple position qualification with the axis of the pipe
45° to the horizontal; welding shall be done without rotating
the pipe. This is a description of which welder qualification
position?
A) 1G
B) 2G
C) 5G
D) 6G
7. A new nameplate shall be added to a tank after:
A) either major repairs or major alterations
B) either major alterations or tank reconstruction
C) it has been relocated
D) It has been reconstructed
,8. A properly selected, applied, and maintained internal
bottom lining proves leak prevention by____.
A) Limiting internal corrosion of the steel tank bottom
B) Creating a cathodic protection barrier on the internal surface
C) Enhancing the effectiveness of the external cathodic
protection system
D) Limiting internal corrosion of the support columns and
landings pads
9. A record of non-essential variables used during welding of
the test coupon is:
A) Optional on the PQR
B) Optional on the WPS
C) Required on the PQR
D) Required on the WPQ
10. A repair is completed on a nozzle that was originally
postweld heat treated(PWHT). It has been determined that
PWHT, of the repair, is inadvisable. Who is required to
conduct a metallurgical review prior to applying one of the
alternative methods permitted in API 653?
A) A professional engineer registered in one or more states or
provinces of Canada
B) A Storage tank engineer
C) The Authorized inspector responsible for the repair
inspection
D) A Metallurgical engineer experienced in alternative PWHT
11. A tank is 20 years old and has a bottom thickness of
0.170". Original bottom thickness was 0.250". Determine the
interval for the next internal inspection.
, A) 10 years
B) 15 years
C) 17.5 years
D) 20 years
12. A tank with cathodic protection has a second bottom
added above the old floor, this tank may:
A) experience accelerated corrosion on the lower floor
B) experience accelerated corrosion on the upper floor
C) experience accelerated corrosion on the product side
D) experience a significant decrease in corrosion on both floors
13. According to API 575, where would you expect to find
paint blisters?
A) On the roof and on the side of the tank on the north side
B) On the roof and on the side of the tank subjected to mist
over-spray from cooling towers
C) On the roof and on the side of the tank adjacent to another
tank
D) On the roof and on the side of the tank recieving the most
sunlight
14. According to API 653, if the material specification for the
steel from an existing tank is unknown or obsolete what
must be done?
A) The material can not be used for tank reconstruction
B) Test coupons for the WPS shall be taken from the actual plate
to be used
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