Safety and Emergency Procedures Flashcards
7 cards from real Tanker Familiarization 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 and Emergency Procedures flashcards as text
During a cargo vapor release on a chemical tanker, wind direction is important because:
Answer: It affects where toxic or flammable vapors will drift, defining safe and hazardous zones
Knowing wind direction allows the emergency team to establish safe muster areas upwind and predict where vapors will disperse.
An EPIRB (Emergency Position Indicating Radio Beacon) on a tanker activates automatically when:
Answer: It is submerged in water to a depth of 1–4 meters
Hydrostatic release mechanisms activate EPIRBs automatically upon immersion at 1–4 meters depth, transmitting a distress signal even if the crew cannot manually activate it.
What is a 'Ship-to-Shore Safety Checklist' used for on tankers during cargo operations?
Answer: Verifying that both vessel and terminal have completed all safety checks before cargo transfer begins
The Ship-to-Shore Safety Checklist (per ISGOTT) ensures both parties confirm safe conditions — communications, ESD, bonding, etc. — before starting transfer.
The maximum permitted concentration of H2S (hydrogen sulfide) in the working atmosphere on a tanker is:
Answer: 10 ppm TWA (OSHA permissible exposure limit)
OSHA's permissible exposure limit for H2S is 10 ppm as an 8-hour TWA; higher concentrations rapidly cause incapacitation and death.
When a cargo tank pressure-vacuum (P/V) valve opens, it indicates:
Answer: Tank pressure or vacuum has reached the valve's set point, venting to prevent structural damage
P/V valves protect cargo tank structural integrity by relieving excess pressure or vacuum automatically at their calibrated set points.
In the event of a fire in a tanker's engine room, the fixed CO2 total flooding system should be activated only after:
Answer: Confirming that all engine room personnel have evacuated
CO2 rapidly displaces oxygen and is lethal; all personnel must be confirmed clear before the system is released.
Under the Standards of Training, Certification and Watchkeeping (STCW) Convention, ratings on tankers who perform cargo handling must hold:
Answer: A tanker-specific rating certificate (Basic Training for Oil/Chemical/Gas Tankers)
STCW Regulation V/1-1 and V/1-2 require personnel involved in cargo operations to hold a basic tanker familiarization or endorsement specific to oil, chemical, or gas tankers.