Inspection Planning and Scheduling Flashcards
7 cards from real API 510 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Inspection Planning and Scheduling flashcards as text
When scheduling a pressure vessel inspection that requires entry, which prerequisite is mandated before an inspector enters the vessel?
Answer: Issuance of a confined space entry permit with atmospheric testing and lockout/tagout verification
Confined space entry permits require atmospheric testing for oxygen, combustibles, and toxics, along with lockout/tagout isolation of all energy sources before any person enters.
What is the primary purpose of establishing baseline thickness measurements during the initial inspection of a new or newly installed pressure vessel?
Answer: To provide reference data so future corrosion rates can be accurately calculated
Baseline readings establish the starting thickness from which future readings are compared, enabling accurate corrosion rate calculation and remaining life prediction.
Under API 510, inspection intervals for pressure vessels operating at low temperatures where brittle fracture is a concern should be planned to include:
Answer: Assessment of toughness requirements and review of any excursions below the minimum design metal temperature (MDMT)
Vessels susceptible to brittle fracture require that inspection plans address toughness evaluation and document any operating temperature excursions below the vessel's MDMT.
A pressure vessel is reclassified to a higher-severity service fluid. According to API 510, what should happen to the inspection schedule?
Answer: The inspection schedule should be reviewed and potentially shortened to reflect the increased risk
A change to more severe or hazardous service increases the consequence and potentially the probability of failure, warranting a review and likely shortening of the inspection interval.
Which situation would justify postponing a scheduled internal inspection of a pressure vessel per API 510?
Answer: The inspection engineer documents that on-stream inspection data confirms adequate remaining life and acceptable risk for the deferral period
API 510 allows deferral of internal inspections when on-stream inspection results and documented risk assessment support continued safe operation through the deferral period.
When planning inspections for a heat exchanger shell classified as a pressure vessel under API 510, which area deserves particular attention due to a common damage mechanism?
Answer: The shell-to-tubesheet junction and shell inlet nozzle area prone to flow-accelerated corrosion or erosion
The inlet nozzle and shell-to-tubesheet junction areas experience high flow velocities and turbulence that promote erosion and flow-accelerated corrosion, making them priority inspection locations.
Per API 510, the authorized inspector is responsible for doing which of the following as part of ongoing inspection planning?
Answer: Maintaining and updating inspection records and ensuring next inspection dates are tracked and met
The authorized inspector maintains the vessel inspection record, updates it after each inspection, and tracks the next required inspection date to ensure compliance with API 510 intervals.