Pride of Le Havre is a 33,336 gross tonnage passenger/ro-ro cargo vessel operating a regular ferry service between Portsmouth and Le Havre.The vessel is fitted with bow and stern doors and is capable of carrying 590 cars and 1600 passengers.Propulsion is by four diesel engines driving through two controllable pitch propellers.Two transverse thrust units are fitted forward.
The vessel had sailed from A&P's King George V dry dock,Southampton,just after midnight on Thursday 18 March,for engine trials.The intention was that after these trials,Pride of Le Havre would berth at Portsmouth,and re-enter service later that day.
Shortly after passing the Nab Tower,the bridge fire alarm activated at 0425,indicating a fire in the machinery spaces.At about the same time,a motorman reported to the engineer watchkeeper that a fire had broken out on the starboard thermal oil pump.While initial attempts were being made to put the fire out using portable extinguishers,the chief engineer was called and the bridge informed of the situation.On confirming that the initial attempt had failed,the chief engineer advised the bridge that he proposed to use the Halon total flooding extinguishing system.The general alarm was sounded and the main engines stopped. The engine room was evacuated and sealed,with Halon being released at 0437.The coastguard and owners were told of the situation with a message being broadcast to local shipping.
A fire brigade team boarded at 0641 with re-entry to machinery space at 0958.Funnel vents were re-opened at 1030 with a fire extinguishing foam blanket laid down in the main machinery space.Ventilation of the engine room started at 1210 with full electric
A.4 transverse thrust units,2 propellers,2 engines and 2 vehicle doors
B.2 transverse thrust units,2 propellers,2 engines and 1 vehicle door
C.2 transverse thrust units,1 propeller,2 engines and 2 vehicle doors
D.2 transverse thrust units,2 propellers,4 engines and 2 vehicle doors
and(c)In any case the draught at the after perpendicular shall not be less than that which is necessary to obtain full immersion of the propeller.
In no case shall ballast water be carried in cargo tanks,except on those rare voyages when weather conditions are so severe that,in the opinion of the master,it is necessary to carry additional ballast water in cargo tanks for the safety of the ship,or,in
According to this passage,it is inferred that ________.
A.the crude oil is more pollutive than the product
B.the crude oil is less pollutive than the product
C.the crude oil and the product are equally pollutive
D.it can not tell whether the crude oil or the product is more pollutive