A vessel constrained by her draught shall，when risk of collision with another vessel in a crossing or head-on situation exists，（）.

A . allowing better access in an emergency B . eliminating potential fuel sources C . eliminating trip hazards D . improving personnel qualificatio

A . increasing the righting moment B . decreasing the vessel's displacement C . increasing the reserve buoyancy D . shifting the CG（center of gravity）off center

A . can use radar information from one object to fix the position B . should never use radar bearings C . should only use radar bearings when the range exceeds the distance to the horizon D . must use information from targets forward of the beam

A . is holding course and speed B . is turning to starboard C . intends to pass port to port D . will keep out of the way of the stand-on vessel

A . removing loose water B . adding weight low in the vessel C . closing crossover valves between partly filled double bottom tanks D . All of the above

A . China Classification Society B . Cargo Survey Bureau C . Environmental Protection Agency D . Public Health

A . starting the fire pumps B . checking firemans outfits and other personnel rescue equipment C . checking relevant communications equipment D . All of the above

A . Bureau of Shipping B . National Cargo Bureau C . Port Authorities D . The Custom

A . two all-round red lights in a vertical line B . three all-round red lights in a vertical line C . two all-round yellow lights in a vertical line D . three all-round green lights in a vertical line

A . dividing the total longitudinal moment summation by displacement B . dividing the total vertical moment summation by displacement C . multiplying the MT1 by the longitudinal moments D . subtracting LCF from LCB

A . reading the gage pressure B . weighing the extinguisher C . discharging a small amount of CO D . seeing if the seal has been broke

A . crew members using their arms B . crew members using the strong muscles of their legs C . fenders D . No fending is necessary due to the rugged construction of most towing vessel

A . connecting rods B . main bearing C . column D . tie rod

A . shape of the vessel's underwater hull remains the same B . vessel's center of gravity shifts to the center of the vessel's underwater hull C . vessel's center of buoyancy shifts to the center of the vessel's underwater hull D . vessel's mean draft increase

A . three all-round red lights instead of the lights required for a power-driven vessel of her class B . the same lights as a vessel restricted in her ability to maneuver C . three all-round red lights in addition to the lights required for a power-driven vessel of her class D . the lights for a power-driven vessel which is not under command

A . demurrage B . despatch money C . the payment for damage of detention D . the payment for quick despach

A . keeping the fuel tanks topped off B . increasing the free surface effect C . keeping the fuel tanks at least half MI D . keeping at least one fuel tank empty for slo

A . are B . is C . have D . ha

A . list B . drag C . set D . sheer

A.vertical moments B.transverse position of the center of gravity C.inclining moments D.righting moments