Subelement D: Other Equipment— Topic 20: Power Sources
Question 1-20D2
Element 1 (MROP)What are the characteristics of the Reserve Source of Energy under GMDSS?
Explanation
The Reserve Source of Energy (RSE) in GMDSS is a critical safety feature, designed to ensure distress communication capability even if a vessel loses its main power supply.
The correct answer, C), highlights this crucial independence. When the ship's primary electrical system fails, the RSE (typically batteries) must be able to autonomously power the GMDSS equipment. This requires it to be entirely independent of the main electrical system to perform its function effectively during an emergency.
A) is incorrect because the RSE is a *source* of power, not about supplying *independent installations*.
B) is incorrect. The RSE *must* be independent of the ship's propelling power (which generates main electricity) to ensure operation during a main power failure.
D) is misleading. While it's connected for charging, its emergency function demands independence from the main system when supplying power.
Related Questions
1-1A6 Shipboard transmitters using F3E emission (FM voice) may not exceed what carrier power?1-20D1 For a small passenger vessel inspection, reserve power batteries must be tested:1-20D3 Which of the following terms is defined as a back-up power source that provides power to radio installations for the purpose of conducting Distress and Safety communications when the vessel’s main and emergency generators cannot?1-20D4 In the event of failure of the main and emergency sources of electrical power, what is the term for the source required to supply the GMDSS console with power for conducting distress and other radio communications?1-20D5 What is the requirement for emergency and reserve power in GMDSS radio installations?