Source: International Convention for the Safety of Life at Sea (SOLAS), Chapter II-2, Part C – Suppression of Fire, Regulation 10.
Reference: imorules.com – Regulation 10
Question 3 of 10
3. In cargo ships of 1,000 gross tonnage and upwards, the number of fire hoses shall be one for each 30 m length of the ship and one spare, but in no case less than: