单项选择题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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1.单项选择题In setting the valves on a steam-smothering system on a tanker,the master control valve to cargo tanks should be().

A.open and individual tank valves open
B.open and the individual tank valves closed
C.closed and the individual tank valves closed
D.closed and the individual tank valves open

2.单项选择题How must each storage tank for helicopter fuel on a ship be marked?()

A.DANGER - KEEP AWAY
B.DANGER - EXPLOSIVE VAPORS
C.DANGER - NO SMOKING
D.DANGER - FLAMMABLE LIQUID

4.单项选择题Individual wires,used in systems greater than 50 volts,().

A.should be supported at 24 inch intervals with plastic tie wraps
B.should never be located in a tank
C.must be installed in conduit
D.All of the above

5.单项选择题Increasing the number of slack liquid tanks has the effect of raising the().

A.uncorrected KG
B.maximum allowed KG
C.virtual height of the center of gravity
D.metacentric height

6.单项选择题Air compressors are NOT permitted in which space(s) on a tank barge carrying grade A cargo?()

A.A cargo handling room
B.A space in which cargo hose is stored
C.An enclosed space containing cargo piping
D.All of the above

7.单项选择题In which case is the IOPP Certificate of an inspected vessel NOT invalidated? ()

A.The required oily-water separator malfunctions
B.The ship is transferred to Liberian registry
C.An annual survey is conducted fifteen months after the date of certificate issuance
D.A 15 ppm oily-water separator is replaced by a 100 ppm oily-water separator

9.单项选择题Litmus paste is used in order to determine().

A.innage
B.thievage
C.ullage
D.the tank's datum point

10.单项选择题Each fireman’s outfit and its spare equipment on a tanker must be stowed in a(n)().

A.locked cabinet in the machinery space
B.unlocked cabinet in the machinery space
C.separate and accessible location
D.location near a fire hydrant