API 510 Closed Book Practice Exam with Questions and complete solutions
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Course
API-510
Institution
API-510
An exchanger shell has a locally corroded area. The owner decides to repair this area with weld buildup.
During this repair, the shell should be: - checked for distortion
What is considered a vessel alteration? - replacement of a hemispherical head with a
tori-spherical head
Widely scattered pi...
API 510 Closed Book Practice Exam
with Questions and complete
solutions
An exchanger shell has a locally corroded area. The owner decides to repair this area with weld buildup.
During this repair, the shell should be: - ✔✔checked for distortion
What is considered a vessel alteration? - ✔✔replacement of a hemispherical head with a
tori-spherical head
Widely scattered pits can be ignored provided the extent of the pitting does NOT exceed: -
✔✔7in squared in an 8in diameter circle
When weld build up is performed in a corroded area what must be done: - ✔✔area should
be examined with MT or PT prior to welding
If preheating is performed in lieu of a PWHT, what is the minimum preheat temp that must
be maintained during welding? - ✔✔300F
, A brittle fracture - ✔✔grows very rapidly with minimum deformation prior to failure
Which welding process requires the uses of a non-consumable electrode? - ✔✔GTAW
Companies that use API 510 must - ✔✔either employ or have access to an authorized
inspection agency
During an inspection, a few isolated deep pits are found in the vessel wall. The current vessel wall
thickness is .800". The minimum required shell thickness is .600" What is the maximum pit depth
allowed? - ✔✔<.500"
During vessel repairs or alterations, who is required to maintain the welding records? - ✔✔Repair
Organization
A vessels service has changed. The inspector must obtain a probable corrosion rate for the new
operation. Which of the following is the preferred way to establish the corrosion rate for the new
service? - ✔✔Similar Service
Which is NOT a significant factor in RBI assessment of a pressure vessel? - ✔✔Vessel Joint Efficiency
The 3G welding position is a(n): - ✔✔Vertical groove welder qualification test weld
The remaining life of a vessel is 12 years. What is the maximum interval for the internal inspection?
- ✔✔6 years
During an in-service internal inspection, a crack is discovered on a longitudinal weld. This crack can
be evaluated to which code? - ✔✔API 579
A nozzle is installed on a 5% chrome vessel. A local post weld heat treatment may be substituted for
a 360 post weld heat treat band provided this procedure is reviewed by the: - ✔✔Pressure Vessel
engineer
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