Proper dispersion of fuel in a diesel engine cylinder is dependent upon the ()
A、injection pressure
B、shape of combustion space
C、turbulence in combustion space
D、all of the above
A、injection pressure
B、shape of combustion space
C、turbulence in combustion space
D、all of the above
A、Draining it overboard when the vessel gets underway B、Placing it in proper disposal facilities C、Adding sinking agents and discharging it into the water D、Mixing it with dispersants before draining it overboard
A、Failure of proper operation of propulsion and other essential machinery, as well as electrical installation B、Failure of the proper operation of the main and auxiliary steering gear C、Failure of engineering watch arrangements to confirm to the requirements specified for the ship by Administration D、Failure of the proper operation of emergency generator, lighting, batteries and switches
A、They are both regions of lowest loss. B、They are both regions of low reflections. C、They are both regions of low index of refraction. D、They are both regions of low chromatic dispersion. E、They are both regions of low Polarization Mode Dispersion (PMD).
A、polar mode dispersion B、polarization mode dispersion C、polarization maintaining dispersion D、polarized mode dispersive
A、failure of the proper operation of the main steering gear B、failure of the proper operation of electrical installations C、leakage of domestic water pump D、insulation of exhaust pipes in engine room contaminated by oil
A、fiber dispersion B、signal attenuation C、transmitter power D、amplifier bandwidth E、receiver dispersion tolerance