Question 11

The Correct Answer is B A hydraulic starting system (Option B) is correct because Illustration MO-0049 typically depicts components characteristic of such a system used for starting diesel engines. These components usually include an accumulator (to store pressurized hydraulic fluid), a hydraulic pump (manual or electric), a starting motor (which converts hydraulic pressure into rotary motion), and associated control valves and piping. This system provides high torque for reliable starting, which is a key advantage for auxiliary engines, particularly in marine environments. Here is why the other options are incorrect: * **A) Electric power operated system:** An electric starting system would rely on heavy-duty batteries, a solenoid, and a conventional electric starter motor. While common, the components shown in MO-0049 are clearly designed for fluid power, not electrical power transmission. * **C) Gas engine power operated system:** This refers to a small internal combustion engine (often petrol or propane) that is used specifically to crank the main engine. The illustration does not show the distinct components of a separate starter engine (such as carburetor, ignition system, fuel tank). * **D) Pneumatic power operated system:** A pneumatic (air) starting system uses compressed air stored in receivers, directed through a control valve to an air starter motor or directly admitted to the cylinders of larger engines. While pneumatic systems are widely used on large marine diesel engines, the components shown in Illustration MO-0049, particularly the design of the accumulator and motor, are specific to high-pressure liquid (hydraulic fluid) operation, not gaseous (air) operation.