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Q1. With regard to a ship operation in the U.M.S mode having an automatic fire detection system for the machinery space, answer following:

(a) Sketch a line diagram of the system showing how shipboard mains supply is fed through battery charger and emergency battery to fire detector heads and fire zone indicator panel and alarms.

(b) In the event of a mains supply failure state the length of time for which the emergency battery should be capable of operating the system.

(c) Sketch and describe a line termination or other method of monitoring the integrity of the system.