MARINA OIC-NW Theoretical Exam study materials
MARINA OIC-NW Theoretical Exam study resources

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

Week 1

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

Week 2

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

Week 3

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

Week 4

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

Week 5

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

Week 6

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

Week 7

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

Week 8

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