Marine Propulsion & Diesel Engines

Engine Basics & Cycles Engine fundamentals first: Otto, Diesel and dual cycles, engine terminology, and two-stroke vs four-stroke differences — the base every Motor answer builds on. 4 Topics Two-Stroke Construction Inside the big two-stroke: engine structure, crankshaft types, main/guide/thrust bearings, chain drive and charge-air coolers — with inspection and failure points. 5 Topics Four-Stroke Engines Auxiliary four-stroke engines: layout, cylinder-head valves, fuel injection, trunk-piston lubrication and the checks that keep them running. 1 Topic Gas Turbines Rotating power without pistons: gas-turbine working, performance, steam-vs-gas comparison and the auxiliaries that support them. 1 Topic Steam Boilers Raising steam safely: boiler types, mountings, safety valves, gauges, combustion and draft — with the figures examiners expect. 3 Topics Performance & Indication Proving the engine makes its power: indicator cards, mean effective pressure, efficiencies and the running adjustments that fix them. 1 Topic Engine Operation Starting, reversing, manoeuvring and stopping: two-stroke and four-stroke operation with the alarms and interlocks that guard each step. 4 Topics Lubrication & Fuel Systems Oil and fuel readiness: lube-oil system and purification plus fuel preparation and changeover — the systems behind every reliable running hour. 1 Topic Safety & Troubles When engines misbehave: protections, performance curves, starting and running faults, and the emergencies — with causes and actions. 4 Topics Governor & Scavenging Speed control and breathing: governors, pulse vs constant-pressure turbocharging, surging and the washing routines that restore air flow. 3 Topics Motor Oral Questions Examiner-style Motor questions with model answers across engines, boilers and systems — final revision before the oral. 2 Topics