“+”(properly called a Pattee cross but often called a Maltese cross) means the ship was constructed under survey by Lloyd's Register surveyors; "100" means the ship is suitable for seagoing service. "A" means the ship was constructed or accepted into LR class and is maintained in good and efficient condition. "1"means she has good and efficient anchoring and mooring equipment.
Yes, but only where they have first abandoned their ship without any prospect of re-boarding her, and are not "company contract" employees. After the crew of the tanker San Demetrio abandoned their burning ship in 1942, some of them managed to board and salvage the ship, and earned a salvage reward.
Except in the Panama Canal (see below), the pilot is an advisor to the master, without having command, navigational control or charge of the vessel. The pilot's duty is restricted to advising the master of local conditions affecting safe navigation. The master has full responsibility for the navigation and manoeuvring of his ship during all acts of pilotage. (Hence the bridge movement book term, "To Master's Orders and Pilot's Advice". )
Costs associated with the ship's employment, including costs of bunker fuel, canal tolls, light dues, port charges (including pilotage, towage, berth charges, agency fees, linesmen's charges, etc.), passenger-handling costs, and cargo- handling costs. Voyage costs are the costs incurred to earn the freight or other voyage revenue. They vary with the length of the voyage and the number of port calls.
To notify all relevant local officials (port State Administration, harbour authority, customs, immigration, port health, etc. ), and to arrange visits by the surveyors representing the various interests. He may also need to arrange for discharge and temporary storage of cargo during repairs. He will usually also collect general average security and salvage security documents and deposits.