154.A ship lists and trims about the ____

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• Personnel who are moving or handling material aboard ship should NOT follow which of the listed practices?（）

  A . signaling that all personnel are clear before lifting or lowering material B . Examining material for sharp edges or protruding points before handling C . Closing, tagging, or securing valves that permit entrance of steam, water, or air into a fitting or other equipment D . Throwing materials from high places to the deck

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• Your vessel is damaged with no list，but down by the stern. There is progressive flooding and trim by the stern is increasing. What is the effect on transverse stability after the deck edge at the stern is submerged?（）

  A . KB increases，increasing BM and therefore GM B . KG increases due to the weight of the added water on deck C . BM decreases from loss of water plane and greater volume D . There is no effect on transverse stability

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• Your vessel is listening 4°to port and has a short rolling period. There is loose firefighting water in the hull. The ship is trimmed down by th end with one foot of freeboard at the bow. Which action should you take first?（）

  A . Press up the slack No.1 starboard double bottom tank B . Pump out the forepeak tank C . Eliminate the water in the tween decks aft D . Jettision stores out of the paint locker in the focsle

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• While reading the muster list, you see that "three short blasts on the ships whistle and the same signal on the general alarm bells" is the signal for （）.

  A . abandon ship B . dismissal from drills C . fire and emergency D . man overboard

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• Your tank vessel is loaded down to her marks, and you find that she has too much trim by the stern,To adjust the trim, you may（）.

  A . add ballast forward B . load more cargo forward C . shift bunkers forward D . All of the above

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• The ship is now too much listing to portaide. I suggest that you（）light cargo on portside and heavy cargo on starboard side.

  A . will put B . would put C . put D . shall put

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• During counterflooding to correct a severe list or trim aggravated by an off-center load，a ship suddenly takes a list or trim to the opposite side. You should（）.

  A . continue counterflooding in the same direction B . continue counterflooding，but in the opposite direction C . immediately stop counterflooding D . deballast from the low side

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• If the cause of a sudden severe list or trim is negative initial stability，counter flooding into empty tanks may（）.

  A . increase the righting moment B . cause an increase in the righting arm C . bring the unit to an upright equilibrium position D . cause the unit to flop to a greater angle

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• Your vessel is damaged and listing to port. There is a short rolling period around the angle of list. The portside freeboard is reduced to 1 foot. There is no trim and the weather is calm. You should FIRST（）.

  A . press up a slack double bottom tank on the port side B . fill an empty centerline double bottom tank C . pump out a slack marine portable tank located on the portside amidships D . jettison the anchors and anchor cable

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• Due to the shape of the（），whereby forward- and aft ship are differently shaped，a trim correction on the draft measurement has to be done.

  A . spheroid B . loxodrome C . carene D . sphere

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• If the cause of severe list or trim is off-center ballast，counterflooding into empty tanks will（）.

  A . increase the righting moment B . increase the righting arm C . increase list or trim D . decrease list or trim

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• If a vessel takes a sudden severe list or trim from an unknown cause，you should FIRST（）.

  A . determine the cause before taking countermeasures B . assume the shift is due to off-center loading C . counterflood on the side opposite the list or trim D . assume the cause is environmental force

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• Your vessel was damaged and initially assumed a significant list and trim; however，further increase has been slow. Based on this data，what should you expect?（）

  A . The slowing is only temporary and the vessel will probably suddenly capsize or plunge from loss of stability due to change in the waterplane area B . The vessel can probably be saved if further flooding can be stopped C . The vessel will continue to slowly list and/or trim due to the free surface effect and free communication effect D . The vessel will suddenly flop to the same or greater angle of list on the other side and may capsize

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• If a vessel takes a sudden，severe list or trim from an unknown cause，you should FIRST（）.

  A . determine the cause before taking countermeasures B . assume the shift is due to off-center loading C . counterflood D . assume the cause is environmental force

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• When arranging cargo for（）in the holds，we should give first consideration to ship’s seaworthiness and her being in a good sea-going trim after loading.

  A . dunnage B . separation C . stowage D . operatio

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• Your tanker is loaded down to her marks，and you find that she has too much trim by the stern. To adjust the trim，you may（）.

  A . add ballast forward B . load more cargo forward C . shift bunkers forward D . All of the above

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• Those ship’s tanks that are particularly important for trimming the ship are the（）.

  A . domestics B . settlers C . deeps D . peak

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• If keep the fuel injection of main engine unchanged when ship is fouled, that will causeⅠ.The speed of main engine to be reduced Ⅱ.Ship speed to be reduced Ⅲ.The resistance torque of propeller to be increased Ⅳ.Trim at stern to increase（）

  A . Ⅰ + Ⅱ B . Ⅰ ~ Ⅲ C . Ⅰ ~ Ⅳ D . Ⅰ + Ⅱ + Ⅳ

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• Which of the listed fire extinguishers cannot be easily recharged aboard ship?（）

  A . Soda acid B . Carbon dioxide C . Dry chemical D . Cartridge-operated Foam

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• The ship has a list of 5 degrees（）starboard.

  A . on B . to C . for D . of

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• A continual worsening of the list or trim indicates（）.

  A . negative GM B . progressive flooding C . structural failure D . an immediate need to ballast

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• If a vessel takes a sudden severe list or trim from an unknown cause, you should first（）.

  A . determine the cause before taking countermeasures B . assume the shift is due to off-center loading C . counterflood on the side opposite the list or trim D . assume the cause is environment force

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• A semisubmersible which flops between forward and aft angles of trim is likely to have（）.

  A . KML less than KGL B . an off-center LCG C . LCG greater than LCB D . KML greater than KMT

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• Your vessel is damaged and listing to port.There is a short rolling period around the angle of list.The port side freeboard is reduced to 1 foot.There is no trim and the weather is calm.You should FIRST ().

  A.press up a slack double bottom tank on the port side B.fill an empty centerline double bottom tank C.pump out a slack marine portable tank located on the portside amidships D.jettison the anchors and anchor cables

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