BD Marine Engineer Class 4 (Coastal CE) study guide
BD Marine Engineer Class 4 (Coastal CE) · Work through your exam, one topic at a time.
The Bangladesh Marine Engineer Class 4 Certificate of Competency (Coastal) is a national qualification that lets a certificated engineer serve in a watchkeeping or supervisory engineering role aboard coastal vessels. It sits below the higher Classes and is aimed at engineers who have completed approved sea service and workshop training and now want a certificate limited to coastal trading rather than unlimited (foreign-going) service. The BD Marine Engineer Class 4 (Coastal CE) study guide has 9 sections and about 2,491 words.
01Marine Propulsion Machinery and Power Plants
A Class 4 coastal candidate must be fluent in the two-stroke slow-speed crosshead diesel and the four-stroke medium-speed trunk engine, including scavenging (uniflow, loop), turbocharging and charge air cooling, fuel injection timing, and the indicator diagram. Know how a propeller law load curve (power varies with speed cubed) governs sea margin and overload.
293 words, about 1 min02Auxiliary Machinery and Shipboard Systems
Auxiliary machinery includes boilers and feed systems, fresh water generators, air compressors, purifiers, oily water separators, bilge and ballast pumps, steering gear, refrigeration and HVAC, and the associated piping, valves and safety devices. Candidates must understand the operating principle, typical pressures and temperatures, and the protective trips for each.
280 words, about 1 min03Marine Electrical, Automation and Control Systems
Understand three-phase AC generation, voltage and frequency control, paralleling and load sharing, protection (overcurrent, reverse power, earth fault), and distribution including essential and emergency switchboards. Know automation layers: sensors, transmitters, controllers (P, PI, PID), actuators, and alarm and monitoring systems.
281 words, about 1 min04Engineering Watchkeeping, Operations and Machinery Maintenance
Watchkeeping covers handover, rounds, log entries, response to alarms, and the authority of the engineer of the watch. Understand planned maintenance systems, condition monitoring (vibration, oil analysis, thermography), and the discipline of permits to work, isolation, and toolbox talks.
283 words, about 1 min05Ship Construction, Stability and Damage Control
Know hull structure: keel, frames, stringers, bulkheads, double bottom, and the purpose of collision bulkhead and watertight subdivisions. Understand intact and damage stability terms: centre of gravity, centre of buoyancy, metacentre, GM, free surface effect, and the meaning of KG and KM.
272 words, about 1 min06Marine Safety, Firefighting and Survival Craft
Understand the fire triangle, fire classes (A, B, C, D, and electrical), and the appropriate extinguishing media. Know fixed systems: CO2, foam, water mist, and the dangers of CO2 release in occupied spaces.
280 words, about 1 min07Marine Pollution Prevention and Environmental Protection
Know MARPOL Annexes I to VI: oil, noxious liquid substances, harmful substances in packaged form, sewage, garbage, and air pollution. Understand the Oil Record Book, garbage record book, and the 15 ppm bilge alarm and oily water separator requirements.
275 words, about 1 min08Maritime Law, Regulations and Survey Requirements
Understand the regulatory framework: SOLAS, MARPOL, STCW, Load Line, COLREG, and the role of flag state, port state control, and classification societies. Know the meaning of statutory certificates, survey types (annual, intermediate, special, renewal), and the ISM Code with its safety management system.
268 words, about 1 min09Engineering Mathematics, Thermodynamics and Applied Mechanics
Revise basic algebra, ratios, percentages, and unit conversion. Understand the gas laws, the first law of thermodynamics, sensible and latent heat, and the Carnot and real cycle efficiency.
259 words, about 1 min