MERCHANT NAVY TRAINING BOARD SYLLABUS FIRST YEAR Use of instruments and scales The sketching of such objects as nuts, bolts, rivets and simple engine parts, e g. a winch piston, a stop valve, a connection rod for a small engine. Drawing m plan and elevation How drawings are dimensioned. Practice in this work by making a dimensioned sketch from a given object. Simple ideas of the working of a reciprocating engine, e g winch; names of essential parts and method of lubrication. How a steam windlass works. Differences between gear wheels and worm _ Simple ideas on the general construction of marine boilers How to operate a steam valve. How pipe lines are drained Danger of frost on pipe lines and winch cylinders How steam is produced in a steam boiler. How it works the engine. SECOND YEAR. Steering gears, their types and the various means of operation. The various pumps on board ship, e.g. feed, ballast and bilge, and how they are worked. The pipes and valves for pumping out bilges, ballast and oil tanks The shafting from engine to propeller and the means by which the thrust of the propeller is transmitted to the hull of the ship. How coal and oil are burned in the furnace of a marine boiler. Danger of fire and the means of preventing, detecting and extinguishing it How a refrigerating machine works; the importance of insulation: how the chambers are cooled. Simple idea of how a steam turbine works. Simple idea of how a Diesel engine works. THIRD YEAR. How electrical pressure, current and resistance are measured. Ohm's law. Some idea of the size of the units by reference to ships' lighting and power supply. Dangerous voltages (dry and wet body). What a current of electricity can do: simple ideas of magnetic, heating and chemical effects. Heating effect of a current — how it increases with an increase in the strength of the current. Melting of substances: effect of temperature upon conducting and insulating properties of substances. How insulated cables tend to insulate heat and so raise temperature. Fuses. Primary and secondary batteries. Care and use of accumulators, Electrical corrosion. Why a ship's supply must have a constant pressure Building up a simple lighting circuit. What candle power is — how^ C.P. depends upon electrical power — how it vanes in different types of lamps — how lamps ara rated. Lamps in series and in parallel How an electro-magnet works, the electric bell and buzzer, telephone, microphone and moving iron ammeter. How a D.C electric motor works. Application m the construction of moving coil ammeter. Simple ideas of the principle and construction of a 4ynamo. The spriag cut-out as safety device Direct and alternating current. The transformer. Different types of motors used in ships: the functions of the starter. Electrical heating and lighting appliances found aboard ship. The measurement of energy in watts, Board of Trade units: the relation of watts to horse-power. f Simple jdeas on the main parts of a ship's wireless apparatus.