四、全區放射式二氧化碳自動滅火設備放射後，為將放射後之滅火藥劑排放 至安全地方，所設之專用排風機每小時具有 6 次換氣量，若放射後之二 氧化碳濃度為 43%，則經過 60 分鐘後之二氧化碳濃度為何？（25 分）

二、試述海龍替代品之種類及其各分類？（10 分）又在選擇海龍替代品時， 應該考慮那些因素？（15 分）

⑴該場所使用之乾粉種類？（5 分）

⑵所需滅火藥劑量？（10 分）

⑶若採用N2加壓式時，所需N2量？（27℃，大氣壓力之表壓力100 kgf/cm2 下）（10 分）

⑴ Any vessel requires a pilot shall fly the “pilot request signal” as used universally or specified by ROC government authority. The owner or master of the vessel may communicate with a pilot’s local agency about the employment of pilot in advance. In the case of two or more vessels hanging the pilot request signals, the pilot shall respond to serve the first-come vessel; however, if one of these vessels is in distress, the pilot shall firstly render his service to such vessel.（12 分）

⑵ When a pilot is hired on board to pilot a vessel, the master shall flag down the “pilot request signal”, and replace it with a signal signifying “pilot on board”, and advise the pilot of maneuvering characteristics, tonnage, length, draft, speed, etc. of the vessel. The master shall not reject the request of the pilot for verification of relevant certificates.（10 分）

⑶ No pilot shall perform the pilotage service unless he/she holds a pilot license issued by the MOTC and a certificate of registration issued by the local shipping administration authority in the pilotage district.（8 分）

⑴採取任何避碰措施，均應符合國際海上避碰規則各條款並且在環境許 可時，應有充分時間早作明確之行動，並注意優良船藝之施展。（8 分）

⑵為避免碰撞而採取之任何航向及（或）航速之改變，如環境允許，其 改變幅度應足能為他船由目視或雷達所明顯測知，並應避免對航向及 （或）航速，作斷續而微小之變動。（12 分）

⑴ Cardinal buoys