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On a ship,a door that is required to be marked KEEP CLOSED is designed to().
A . prevent the passage of flammable gases
B . prevent the passage of poisonous vapors
C . delay the spread of heat and flames
D . maintain watertight integrity
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When taking soundings on a floating ship,the tape should be lowered and brought back quickly to().
A . reduce the time the sounding tube is open
B . avoid creating a spark
C . lessen the effect of roll or pitch on the reading
D . lessen the effect of heave on the reading
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According to Annex I of MARPOL 73/78, oily waste from cargo tanks of oil tankers can be discharged when the ship is more than()away from the nearest land.
A . 50 nautical miles
B . 30 nautical miles
C . 15 nautical miles
D . 12 nautical mile
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When a ship is entering to shallow water, ship resistance will be increased and the speed of main engine reduced.Due to the function of the governor, the main engine will()
A . reduce fuel feeding
B . increase fuel feeding
C . keep original fuel feeding
D . be overspeed
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In a diesel engine, when installing new piston rings it is important to check() Ⅰ.ring gap clearance Ⅱ.side clearance
A . Ⅰ only
B . Ⅱ only
C . both Ⅰ and Ⅱ
D . neither Ⅰnor Ⅱ
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When turning a ship in restricted space with a strong wind,it is normally best to().
A . Go ahead on both engines with the rudder hard to one side,if on a twin-screw vessel
B . Back down with the rudder hard to one side,if on a single-screw vessel
C . Take advantage of the tendency to back to port,if on a twin-screw vessel
D . Turn so that the tendency to back into the wind can be used,if on a single-screw vessel
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In rough weather,when a ship is able to maneuver,it is best to launch a lifeboat().
A . on the lee side
B . on the windward side
C . with the wind dead ahead
D . with the wind from aster
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Knowing the compass heading that is 90°to the side of a ship will enable the operator of a survival craft to initially steer().
A . into the wind
B . away in fire and smoke
C . directly to the standby boat
D . directly to the nearest land
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When is the density of the water required to be logged in the logbook of a ship?()
A . Any time the vessel moves from water of one density into waters of a different density
B . Prior to getting underway when the vessel is floating in fresh or brackish water
C . Only when the vessel moves from fresh water into salt water
D . The density of the water is not required to be logged in the unofficial logbook
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Which mooring line is likely to undergo the most strain when docking a ship under normal conditions?()
A . Bow line
B . Breast line
C . Spring line
D . Stern line
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When a ship in loaded condition floats at arbitrary water line, its displacement is to the relevant mass of water displaced by the ship()
A . equal
B . larger
C . smaller
D . equivalent
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According to Annex Ⅴ of MARPOL 73/78, the dunnage, lining and packing materials which will float can be discharged when the ship is more than()away from the nearest land.
A . 3 n mile
B . 5 n mile
C . 12 n mile
D . 25 n mile
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When lowering manropes alongside a stage rigged over the side of a vessel,they should be allowed to trail in the water().
A . to easily remove the kinks that form in the lines
B . to allow the seamen on the stage to know the direction and strength of the current
C . to provide the seaman something to hold onto if he or she falls from the stage into the water
D . only for short periods of time since they will become waterlogged and be very heavy to pull u
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When moored with a Mediterranean moor,the ship should be secured to the pier by having().
A . a stern line and two quarter lines crossing under the stern
B . a stern line,2 bow lines,and 2 quarter lines leading aft to the pier
C . all regular lines leading to the pier in opposition to the anchor
D . two bow lines and two midship lines leading aft to the pier
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When a vessel is swinging from side to side off course due to quartering seas,the vessel is ().
A . broaching
B . pitchpoling
C . rolling
D . yawing
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When the ship is under attack by pirates,or terrorists,()needs to be activated.
A . AIS
B . SSAS
C . SSP
D . SART
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At the instant when a string of casing being run from a ship is landed in the well head,().
A . the total weight in air of the casing string is removed from the ship
B . the hook load (weight of the casing string) is removed from the ship
C . the weight of the casing inside the riser is removed from the ship
D . the weight of the casing string added to the weight of the fill-up mud is removed from the shi
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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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A mortgagee only()entitled to all the freight which the ship is in the course of earning,when his possession of the ship comes into being.
A . sustains
B . maintains
C . becomes
D . ha
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An oceangoing ship of 400 gross tons and above must be fitted with a standard discharge shore connectionWhat is the size of the bolt circle diameter of the shore connection required to transfer oily ballast to a shore side reception facility?()
A . 125 mm
B . 183 mm
C . 215 mm
D . It depends on outside pipe diameter
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The load limitation of governor should be reduced when ship navigating at sea, the main reason is to()
A . prevent the diesel engine surging
B . prevent governor from being damaged because of swing
C . reduce the probability of the crank shaft being torsional vibrated and resonated
D . prevent the main engine being overload or overspeed
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(),where the ship is docked for hull coating renewal, and for any other required underwater work to be carried out, when the opportunity is taken to make other repairs.
A . Voyage repairs
B . Routine docking
C . Damage repairs
D . Conversio
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When standing on a ship and facing the bow, the right-hand side is called ______.
A.the right side
B.the port side
C.the starboard side
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In a good relationship., if one side is willing to change then their relationship will be perfect.()
此题为判断题(对,错)。