The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. |
Propulsion systems may include: | Inboard and outboard enginesPropulsion plant – prime mover (diesel engine), shaft and propellers (fixed and controlled pitch)Schottel or similar azimuth systems ThrustersWater jet units |
Shafting systems may include: | Gear boxPropellerShaft:sealsbearingscouplingsStern bearingThrust block |
Terminology and main components may include: | BearingsBed plateCrankshaft driveCylinder blockExhaust:systemvalveFilters FlywheelFuel:injectorpumpHeat exchangerInjectorInlet valvePiston Turbo chargers |
Engine operating principles may include: | Requirements for diesel engines for:propulsionpower generationemergency use |
Power distribution systems may include: | Circuit breakersDistribution boardsShore power changeover arrangements |
Power generating plants may include: | Diesel engine Hybrid systemSolar generationWind generation |
Refrigeration systems may include: | Compressors Different types of gassesEvaporators |
Environmental issues may include: | Chlorofluorocarbons (CFCs) used in refrigerants Diesel and steam engines to power refrigeration, lights, pumps and other functionsOzone depleting substances (ODSs)Water treatment chemicals and chemicals from refrigeration equipment |
Operating characteristics of typical pumping systems may include: | Back flooding prevention procedures Drive systems, belts, clutches and motorsFire, bilge and tank circulating systems Standard identification markingsStrainers, strum and mud boxes, and foot valves Use of flexible materials and hoses Valve types, including their construction and maintenance |
Hydraulic systems may include: | Electro hydraulic steering gearsEmergency operation in electrical or hydraulic failurePreventative and remedial maintenance requirements of hydraulic systems Simple hydraulic circuits |
Steering systems and components may include: | Rudder and stock support bearingsRudder construction featuresRudder types Glands, packing and sealsRequirements for maintaining and testing steering and related hydraulic systems Steering operation using hydraulic, cable, rod and gearTiller arm attachment |
Deck machinery may include: | Basic hydraulic systems Derricks and booms Fishing gear Lifting equipmentSafeguards and protective devices for winches Small cranesWinchesWindlasses |
Navigational system may include: | AISCharts CompassGPSPlottersRadarSounders |
Typical risks may include: | FireInhalation and poisoningInjuryMarine pollution |