NIMASA STCW Tanker Familiarization case studies
NIMASA STCW Tanker Familiarization · Put your knowledge to work in context.
The NIMASA STCW Tanker Familiarization credential is the Nigerian maritime administration's route for seafarers who need the STCW basic training that precedes service on oil, chemical or liquefied gas tankers. It is aimed at ratings and officers joining tanker crews, cadets starting tanker sea time, and shore or terminal staff who need to understand tanker cargo hazards. It is not a tanker endorsement in its own right: advanced cargo operations training builds on it. Assessment is typically multiple choice plus a written or oral component, and covers tanker types and cargo hazards, the STCW/MARPOL/SOLAS/ISGOTT framework, emergency procedures, ignition and static control, inert gas, pollution prevention, oil and chemical cargo practice, liquefied gas practice, and personal safety and PPE. The NIMASA STCW Tanker Familiarization case studies are 5 cases and about 3,448 words.
1Loading gasoline without inerting: velocity, sampling and bonding under terminal pressure
MT Delta Star is a 12,000 dwt product tanker with no inert gas system. She is loading 6,000 m³ of unleaded gasoline (flash point about –43 °C) at a Lagos terminal through two 8-inch loading arms.
746 words, about 4 min2Styrene monomer: charterer orders nitrogen inerting on an inhibited cargo
MT Chem Pioneer is an 8,000 dwt stainless-steel chemical tanker preparing to load 1,500 t of styrene monomer at Onne. The cargo certificate states 12 ppm TBC inhibitor and a maximum loading temperature of 28 °C.
696 words, about 3 min3LNG tank pressure rise after loading cargoes of different density
The 145,000 m³ membrane LNG carrier Pacific Aurora has loaded No. 2 tank from two shore sources.
674 words, about 3 min4Oily bilge water discharge at anchor: a faulty 15 ppm alarm and a full holding tank
MT Naija Spirit is a 6,500 dwt product tanker anchored 8 nautical miles off Lagos, waiting for a berth. The bilge holding tank is nearly full after engine-room work.
664 words, about 3 min5Enclosed-space entry after tank washing: a collapsed crew member and an incomplete permit
MT Gulf Trader is an oil tanker at anchorage. 4 port cargo tank has been washed and ventilated for three hours.
668 words, about 3 min