4. 下圖所示之國際信號旗為何？

(A) B

(B) I

(C) O

(D) Q

5. What does the abbreviation SWL stand for?(A) safe working load(B) safe water line(C) ship without light(D) signal wave letters

6. What light signal shall be exhibited for a vessel engaged on pilotage duty while underway? (A) At or near the masthead, two all-round lights in a vertical line, the upper being red and the lower white. Sidelights and a sternlight. (B) At or near the masthead, two all-round lights in a vertical line, the upper being white and the lower red. Sidelights and a sternlight. (C) At or near the masthead, two all-round lights in a vertical line, the upper being green and the lower red. Sidelights and a sternlight. (D) At or near the masthead, two all-round lights in a vertical line, the upper being red and the lower green. Sidelights and a sternlight.

7. Your vessel is a deep draught vessel and constrained by her draught. What sound signals you should sound in restricted visibility? (A) One prolonged followed by two short blasts at intervals of not more than 2 minutes. (B) One prolonged blast at intervals of not more than 2 minutes. (C) Two prolonged blasts at intervals of not more than 2 minutes. (D) Four short blasts at intervals of not more than 2 minutes.

8. Which of the following navigational instruments would not have a detrimental effect when failure of gyro compass? (A) ARPA. (B) Automatic steering. (C) GPS. (D) Gyro compass off course alarm.

9. Which of the followings is a timekeeper?(A) RADAR.(B) Chronometer.(C) Anemometer.(D) Clinometer.

10. What is the fog signals of a fishing vessel making way through the water but not engaged in fishing? (A) One prolonged blast followed by two short blasts at intervals of not more than 2 minutes. (B) One prolonged blast at intervals of not more than 2 minutes. (C) One prolonged blast followed by three short blasts at intervals of not more than 2 minutes. (D) One prolonged blast followed by four short blasts at intervals of not more than 2 minutes.

11. What we call the ability of a ship to maintain automatically a pre-set position and heading by using her own propellers and thrusters? (A) Estimated position. (B) Dynamic position. (C) Static position. (D) Reckoning position.

12. 不論使用何種通訊方法或媒體，由原始發信人所傳送信息的通信台為何？(A) Station of origin(B) Station of destination(C) Receiving station(D) Transmitting station

13. 航行警告電傳系統中，若接收信文主旨代碼為D，則其意義下列何者？(A) 搜救資訊(B) 航行警告(C) 氣象預報(D) 冰山報告

14. _________ of propeller is a line,wire,net,etc,is wound round the propeller.(A) Twist(B) Hoist(C) Foul(D) Wired

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