MARINA OIC-NW Theoretical Exam study plan
MARINA OIC-NW Theoretical Exam · Give each week a clear focus.
8 weeks · About 7 hours per week
Navigation: terrestrial and coastal navigation, position fixing, passage planning, and chartwork
Plot a three-bearing fix, a running fix, and a four-point bearing on a training chart, then compute set and drift from a current triangle
Convert between true, magnetic, and compass bearings using variation and deviation cards, working 20 mixed conversions without error
Lay off a coastal passage of at least 30 nautical miles with courses, distances, wheel-over points, and abort/alternative routes annotated
Identify and label the chart symbols, buoyage, and light characteristics found along that passage using IALA Region A conventions
Your checkpoint
One completed paper chart with a 30 nm coastal passage fully annotated plus a worked current-triangle calculation sheet
Navigation: terrestrial and coastal navigation, position fixing, passage planning, and chartwork & COLREGs: steering, sailing rules, lights, shapes, sound and light signals, and conduct of vessels
Re-solve the week 1 passage using a second method (tidal stream atlas versus computed tidal data) and reconcile any differences in ETA
State the steering and sailing rules for head-on, crossing, and overtaking situations and apply them to 15 written encounter scenarios
Assign the correct day shapes and night lights to 12 vessel types, including RAM, NUC, fishing, and constrained by draught
Explain the hierarchy of responsibilities when a risk of collision exists, including the give-way vessel's early and substantial action
Your checkpoint
A 15-scenario COLREGs worksheet with the governing rule cited and the required action for each vessel written out
COLREGs: steering, sailing rules, lights, shapes, sound and light signals, and conduct of vessels & Ship stability, ship construction, and vessel maneuvering and handling
List every sound and light signal in restricted visibility and in sight of one another, and match each to the situation that triggers it
Describe the effect of rudder angle, propeller transverse thrust, and bank effect on a vessel turning in confined water
Explain the forces acting on a vessel during a turn, including heel, transfer, and advance, and relate them to squat and shallow-water handling
Identify the structural members of a hull (keel, floors, frames, stringers, bulkheads) and state the purpose of each in maintaining watertight integrity
Your checkpoint
A one-page vessel-handling and hull-structure summary sheet that you can reproduce from memory in under 10 minutes
Ship stability, ship construction, and vessel maneuvering and handling & Electronic navigation and bridge equipment: radar, ECDIS, GPS, echo sounder, gyro/magnetic compass, AIS
Compute initial stability quantities from a given hydrostatic table: GM, KG after adding or shifting weight, and the effect of free surface
Interpret a GZ curve and state the significance of the angle of vanishing stability and the area under the curve
Set up a radar display for a coastal approach: range scale, tuning, gain, sea and rain clutter, and parallel index lines
Derive true course and speed of a target from a plotted relative-motion triangle and state the closest point of approach
Your checkpoint
A stability calculation set (GM, KG shift, free-surface correction) plus one fully plotted radar relative-motion triangle with CPA and TCPA
Electronic navigation and bridge equipment: radar, ECDIS, GPS, echo sounder, gyro/magnetic compass, AIS & Watchkeeping: bridge procedures, lookout, handover, and record keeping
Demonstrate the main ECDIS functions in a simulator or training app: route safety check, look-ahead, and ENC update verification
Explain the limitations of GPS, the meaning of HDOP and RAIM, and how to cross-check position with an independent source
Describe the checks a relieving officer makes at handover, including position, course and speed, traffic, and standing orders
Draft a set of night orders and a bridge watch checklist that cover lookout, record keeping, and reporting criteria
Your checkpoint
A written watch handover checklist and a set of night orders, each under one page, covering every item you would expect to receive or issue
Meteorology and oceanography: weather systems, forecasts, and their effect on the vessel & Emergency procedures, safety of life at sea, SAR, and pollution prevention (SOLAS, MARPOL, GMDSS basics)
Read a synoptic chart and identify the pressure systems, fronts, and expected wind shifts over the next 24 hours
Explain how sea breeze, land breeze, and local funneling affect coastal wind and relate them to a planned departure
State the distress, urgency, and safety priority levels in GMDSS and the correct procedure for each on VHF and MF/HF
Describe the actions on receiving a distress alert, including the role of the RCC and the ship's obligations under SOLAS V
Your checkpoint
A weather-routing decision note for a 24-hour coastal passage plus a GMDSS distress-procedure card you can recite
Emergency procedures, safety of life at sea, SAR, and pollution prevention (SOLAS, MARPOL, GMDSS basics) & Cargo operations and stowage basics, including dangerous goods awareness
Outline the MARPOL Annexes and state the discharge restrictions and record-keeping requirements for oil and garbage
Describe the IMDG hazard classes, segregation requirements, and the documents required before loading dangerous goods
Explain the checks before and during a cargo operation: stability, stress, lashings, ventilation, and hatch security
State the actions for man overboard, abandon ship, fire, and collision, including the SAR coordination sequence
Your checkpoint
A two-page emergency and pollution-prevention quick-reference covering MOB, fire, abandon ship, and MARPOL discharge rules
Seamanship, ropework, rigging, anchoring, and deck maintenance & Navigation: terrestrial and coastal navigation, position fixing, passage planning, and chartwork
Tie a bowline, clove hitch, rolling hitch, and round turn and two half hitches, and state one use for each
Describe the anchoring sequence: selecting the anchorage, letting go, veering cable, and checking the anchor is holding
Complete a timed full-length practice paper across all nine domains and log every wrong answer with the reason
Revisit the weakest two domains from the practice paper and redo the relevant calculations or scenarios
Your checkpoint
A completed timed practice paper with a written error log and a one-page final revision sheet of your weakest points
Milestones
Week 2: You can plot a running fix and resolve a crossing encounter on paper without reference notes, and you score at least 80% on a self-made 20-question navigation and COLREGs quiz
Week 4: You compute GM and KG shift from a hydrostatic table and plot a radar relative-motion triangle with correct CPA and TCPA, both unaided
Week 6: You interpret a synoptic chart into a 24-hour wind forecast and recite the GMDSS distress procedure from memory
Week 8: You complete a full timed practice paper across all domains and your error log shows no repeated mistake in the same domain