Safety Procedures 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 Safety Procedures flashcards as text
According to API 510, what must be done before any inspector enters a pressure vessel for internal inspection?
Answer: The vessel must be isolated, depressurized, purged, and ventilated to ensure a safe atmosphere
API 510 requires vessels to be fully isolated, depressurized, purged of hazardous contents, and ventilated to safe atmospheric conditions before any personnel entry.
Which lockout/tagout (LOTO) requirement applies to pressure vessel inspection per OSHA 29 CFR 1910.147 referenced in API 510 work?
Answer: All energy sources must be isolated and locked out before inspection begins
OSHA 29 CFR 1910.147 requires all hazardous energy sources—pressure, thermal, electrical, chemical—to be isolated and locked out before inspection.
When performing hot work near a pressure vessel that has contained flammable material, what document is typically required before work begins?
Answer: A hot work permit signed by authorized personnel
Hot work permits are required before any spark- or flame-producing work near flammables, and must be authorized by responsible facility personnel.
An API 510 inspector identifies hydrogen sulfide (H₂S) in a vessel's previous service. What safety requirement takes priority before internal inspection?
Answer: Atmospheric testing must confirm H₂S levels are within safe limits before entry
H₂S is immediately dangerous to life and health (IDLH) at 100 ppm; atmospheric testing must confirm safe levels before any entry.
What is the minimum number of people required for a safe confined space entry inspection of a pressure vessel per industry safety standards?
Answer: At least two: an entrant and an attendant stationed outside
OSHA permit-required confined space regulations mandate at least one entrant and one trained attendant who remains outside to monitor and respond to emergencies.
When scaffolding is erected inside a large pressure vessel for inspection, what API 510 safety concern must be addressed regarding the scaffold materials?
Answer: Scaffold materials must not introduce spark or ignition hazards if flammable residues remain
Scaffold materials must be selected to avoid ignition of any residual flammables, and non-sparking tools and materials may be required in hazardous environments.
Which of the following best describes the purpose of a job safety analysis (JSA) prior to pressure vessel inspection?
Answer: To systematically identify hazards associated with each inspection task and establish controls
A JSA breaks each inspection task into steps, identifies potential hazards at each step, and establishes hazard controls before work begins.