24. Three calls of pan-pan in radiotelephone communications is used to signify that there is ______ on board a ship
(A) a distress
(B) a securite
(C) an SOS
(D) an urgency

20. According to the voyage plan, the route has several ______ at which the ship has to alter courses. (A) velocities (B) destinations (C) waypoints (D) goals

21. Which term below means the vertical distance measured from the ship's waterline to the highest point of the ship? (A) Freeboard (B) Air draught (C) Superstructure (D) Draft

22. The ______ of the vessel is 15,000 TEU. (A) bulk capacity (B) container capacity (C) grain capacity (D) bale capacity

23. The cargo handling operation in terminals is often performed by ______. (A) crew (B) stevedores (C) ratings (D) wipers

25. On a Mercator chart, short distances are often measured using the ______ scale. (A) compass rose (B) latitude (C) meridian (D) longitude

26. ______ is an important issue for ship security involving criminal acts of violence, detention or depredation. The notorious areas where such crimes often take place include Somalia, Gulf of Aden, Indonesia and Malacca Strait. (A) Infancy (B) Arson (C) Embezzlement (D) Piracy

27. Which of the following ropes is a synthetic-fibre rope? (A) Manila rope. (B) Sisal rope. (C) Hemp rope. (D) Polypropylene rope.

28. A non-inert cargo tank washing was carried out under both the source of ignition and flammability of the tank atmosphere are control. In what level of hydrocarbon vapor concentration you must stop the tank washing operation? (A) More than 50% LFL (Lower Flammable Limit). (B) More than 35% LFL (Lower Flammable Limit). (C) More than 10% LFL (Lower Flammable Limit). (D) More than 1% LFL (Lower Flammable Limit).

29. Which of the following vessels is a not under command vessel? (A) A vessel engaged in dredging. (B) A vessel engaged in the launching of aircraft. (C) A vessel with failure of her steering gear. (D) A vessel engaged in a towing operation.

30. Which of the followings factors is not to be taken into account in determining safe speed? (A) Type of ship and cargo loaded. (B) The state of visibility. (C) The manoeuvrability of the vessel. (D) The proximity of navigational hazards.