Overspeed of the diesel engine driving an electric generator could cause（）.

A . clear B . hazy light brown C . hazy light blue D . hazy light grey

A . achromatism or thin gray B . thin white C . sky-blue D . black

A . stiffen the bedplate in way of the main bearings to increase the engines longitudinal strength B . accept most of the tensile loading that results from the firing forces developed during operation C . mount the engine frame securely to the hull to prevent shaft coupling misalignment D . connect the crosshead solidly to the piston rod

A . ignition quality of the fuel B . calorific value of the fuel C . flash point of the fuel D . rate of fuel consumptio

A . Spark plug B . Heat of compression C . Carburetor D . Glow ping

A . produce the heat for ignition B . decrease injection lag C . increase ignition delay D . aid in exhausting burnt gase

A . cetane number B . volatility point C . viscosity index D . octane number

A . cutting power off the engine B . increasing the fuel pump setting C . braking the crankshaft D . stabilizing the ship speed

A . tension stretch B . tie rods C . through bolts D . main bearing

A . counterbalance the crank throws on the crankshaft B . keep the engine running smoothly between power stroke C . provide a belt-driving surface for the operation of auxiliary machinery D . prevent the engine from overspeeding

A . aluminum plates B . lead cathodes C . copper baffle plates D . sacrificial zinc

A . swept volume of the cylinder B . inside diameter of the cylinder C . piston displacement in the cylinder D . length of the piston stroke

A . cylinder covers B . lubricating space C . crosshead D . exhaust manifold

A . keep all systems in normally running B . the main engine is stand-by C . shut off the starting air bottle outlet valve D . pay attention to the changes of the system parameter

A . Oil temperature B . Manifold pressure C . Exhaust gas temperature D . Fuel consumptio

A . The cetane number is obtained by comparing the fuel with cetane a colorless liquid hydrocarbon B . The higher the cetane number, the shorter the ignition lag C . The highest cetane number of fuel is 100 D . All of the above

A . Control the amount of lube oil burned in the combustion chamber B . Transmit heat from the piston to the cylinder liner C . Prevent damage to ring groove inserts by acting as a heat dam D . Dissipate combustion chamber gas pressure by channeling it through the ring ga

A、A. turbine engine B、B. gas turbine C、C. steam engine D、D. internal combustion engine

A . to inspect if the cylinder has the water leakage B . to expel out the residual water/gas/oil from the cylinder C . to check if fuel supply is normal D . A and B

A . low voltage trip to trip B . reverse power trip to trip C . damage to windings D . excessive exhaust temperature

A . The cetane number affects the amount of injection lag B . The cetane number is an indication of the fuels viscosity C . Ignition lag is reduced with fuels having a high cetane number D . The cetane number is of little significance in the combustion proce

A.Water discharging from the water outlet of the lube oil purifier B.Fuel oil discharging from the water outlet of the lube oil purifier C.Lube oil discharging from the water outlet of the lube oil purifier D.A change in the lube oil viscosity