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Amount of questions: 10.
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According to this learning session, what should you do first when there isan unexpected blackout?
Refer to the relevant procedure.
Immediately restart all electrical equipment and machinery.
Inform the engine room and wait for instructions before taking any action.
After restoring the main electrical power supplies, what should be done with the emergency generator? Select the ONE best answer.
It should remain running on load until the vessel reaches the next port.
It should be manually synchronized with the main switchboard and kept in standby mode.
It should be taken off load, stopped, and returned to the automatic position.
How are supplies to essential navigational equipment usually maintainedduring a blackout?
By connecting all navigational equipment directly to the emergency generator after a blackout occurs.
By using portable battery packs manually connected by the bridge team when required.
By individual Uninterruptable Power Supplies (UPS).
How are the engine room alarm and monitoring services supplied in theevent of a blackout?
By batteries.
By the emergency generator only after it has reached full operating speed.
By the main switchboard through a temporary bypass connection.
In the event of a blackout, how soon should the emergency generator startand give you essential services back?
Within 2 minutes after the blackout occurs.
Within 45 seconds.
Within 10 seconds after the main power supply fails.
On most ships, how are the main and emergency switchboards arranged?
Both switchboards are completely independent and cannot supply power to each other under any circumstances.
The emergency switchboard can feed the main switchboard, but the main switchboard cannot supply the emergency switchboard.
The main switchboard can feed the emergency switchboard, but the emergency switchboard cannot feed the main switchboard.
Should you always activate the engineers alarm in the event of anunexpected blackout?
Yes, because there will be multiple tasks to be done, needing organization and teamwork.
No, because the emergency generator will automatically restore all power without any need for assistance.
Only if the blackout continues for more than 30 minutes and the main generator cannot be restarted.
Which of the following would you close in the event of a blackout?
The fuel supply to the emergency generator.
The cooling water supply to all machinery systems.
The steam supply to tank heating.
Why might the sequence of restoring power after a blackout need to becarefully planned in advance?
Because we may have to start a main generator before starting a main cooling pump, so the timing and sequence of actions is critical.
Because all electrical equipment must be restarted at the same time to avoid damage to the generators.
Because the emergency generator fuel supply must be isolated before restoring power to the main switchboard.
Why should the data logger history of alarms be checked following ablackout? Select the most important reason.
To determine how much fuel was consumed by the emergency generator during the blackout.
To try and find the original cause of the blackout so that it can be fixed, or faulty equipment isolated.
To confirm that all electrical equipment has returned to normal operation and no further checks are required.
