智慧职教: The reserve source of energy must be tested_____under GMDSS if the reserve source of energy is a motor generator,not a battery.
举一反三
- 9. The reserve source of energy shall be independent of the propelling power of the ship and the ship ' s_. A: electrical sytem B: energy system C: power system D: lighting system
- Charging requires an external source to furnish electric energy, after which the battery again can supply energy in chemical form.
- The _______is commonly started by an electric motor powered by storage battery. A: main generator set B: emergency generator set C: emergency battery D: diesel generato
- Hydrogen, which is ______ than off, is pretty easy to produce and does no harm to the environment. A: much energy more abundant source B: an energy source more abundant C: a much more energy abundant source D: a much more abundant energy source
- ______ are belonging to energy storage battery. A: lead acid battery B: Li-ion battery C: solar cell D: nickel metal hydride battery