Permission is requested to pump out about 200 tons of clean sea ballast water for ______ purposes．A.safe manningB.trimmingC.avoiding collisionD.preventing pollution
Permission is requested to pump out about 200 tons of clean sea ballast water for ______ purposes．
A.safe manning
B.trimming
C.avoiding collision
D.preventing pollution
相关考题：
Will we connect the motor with the fresh water pump? No, the pump is ( )_A.in good orderB.out of orderC.works well
Permission is kindly ______ about 1000 tons of clean sea water ballast，as and when required for trimming purposes．A.requested to pump outB.requested pumping outC.requesting to pump outD.requesting pumping out
The master got permission to pump out 500 tons of clean sea water for ______.A.the purpose of trimmingB.the approval for ballastC.the purpose of voyageD.the approval for operation
An oil tanker operating with dedicated clean ballast tanks shall be equipped with ______，approved by the Administration on the basis of specification recommended by the Organization，to enable supervision of the oil content in ballast water being discharged．A.An oil content meterB.An oil checkerC.An analyzer of oil contentD.A mixer of oily water
Every existing product carriers of 40，000 tons deadweight and above shall be provided with segregated ballast tanks and shall comply with the specified requirements，or，alternatively，operate with ______ in accordance with the convention．A.crude oil washingB.dedicated clean ballast tanksC.cargo tank cleaning systemD.oil record book
共用题干第三篇Preserve the EnvironmentThroughout history man has changed his physical environment in order to improve his way of life.With the tools of technology he has altered many physical features of the earth.He has transformed woodlands into farmland,and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power. Man has also modified the face of the earth by draining marshes and cutting through mountains tobuild roads and railways.However,man's changes to the physical environment have not always had beneficial results.Today, pollution of the air and water is an increasing danger to the health of the planet.Each day thousands of tons of gases come out of the exhausts of motor vehicles;smoke from factories pollutes the air of industrialized areas and the surrounding areas of countryside.The air in cities is becoming increasingly unhealthy.The pollution of water is equally harmful.In the sea,pollution from oil is increasing and is killing enor- mous numbers of algae（水藻）,fish and birds.The whole ecological balance of the sea is being changed. The same problem exists in rivers.Industrial wastes have already made many rivers lifeless.Conservationists believe that it is now necessary for man to limit the growth of technology in order to sur-vive on earth.According to the passage,pollution of the air and water is caused by__________.A:thousands of tons of gases coming out of the exhausts of motor vehiclesB:the changes of the environment that technology has brought to manC:the increasing amount of oil that has been producedD:industrial wastes discharged into rivers
After leaving the port, we used （）to clean the empty holds and decks.A、fresh waterB、sea waterC、both A and BD、ballast water
淡水注入管（）A、fresh water filling pipeB、sea water filling pipeC、ballast water filling pipeD、bilge water filling pipe
单选题Permission is requested to pump out about 200 tons of clean sea ballast water for （） purposes．Asafe manningBtrimmingCavoiding collisionDpreventing pollution
单选题An oil tanker operating with dedicated clean ballast tanks shall be equipped with（），approved by the Administration on the basis of specification recommended by the Organization，to enable supervision of the oil content in ballast water being discharged.Aan oil content meterBan oil checkerCan analyzer of oil contentDa mixer of oily water
单选题Every existing product carriers of 40000 tons deadweight and above shall be provided with segregated ballast tanks and shall comply with the specified requirements，or，alternatively，operate with（）in accordance with the convention.ACrude Oil WashingBdedicated clean ballast tanksCcargo tank cleaning systemDOil Record Book
单选题The SOLAS convention about “passenger ship and dried food ship damage control” prescribes that the engine room emergency bilge water suction should connect with （）Athe main S-W pumpBballast pumpCair-conditioning water pumpDthe main S-W pump or ballast pumps that have the biggest output
单选题（） system is arranged to ensure that water can be drawn from any tank or the sea and discharged to any other tank or the sea as required to trim the vessel.AThe domestic waterBBilge waterCOil transferDThe ballast
单选题Which of the following statements is correct concerning diesel engine cooling water systems?（）AEach engine must have its own engine driven cooling water pump capable of providing cooling for all ranges of operationBpropulsion engines with bores exceeding 200 mm are to be fitted with a means to display the cooling water temperature of each cylinderCAt least two independent sea suctions are to be provided for supplying water to the engine jackets or to the heat exchangersDSuitable strain are to be fitted between the circulating pumps and heat exchangers when sea water is used for direct cooling
单选题（）belongs to emergency power supplying equipments.AEmergency fire pumpBWindlassCMain sea water pumpDFresh water pump
单选题Please supply us with 250 tons of fresh water. You are requested to deliver it on board（）.Atill FridayBon Friday at the latestCuntil Friday afterwardsDat Friday soonest
单选题With a vacuum boiling evaporator, the remainder of sea water fed to the evaporator is pumped out by （）.Aa brine pumpBan air ejectorCa feed pumpDdistillate pump
单选题When（）clean ballast water from any vessel，an application shall be made to Harbor Authorities for approval.AdischargingBrecirclingCloadingDtaking in
单选题Every new crude oil tanker of 20000 tons deadweight and above and every new product carrier of 30000 tons deadweight and above shall be provided with（）.Asegregated ballast tanksBmoulded draught measurement systemCadditional ballast water systemDdedicated clean ballast tanks system
单选题Permission is kindly requested（）the ballast water.Apump outBto pump outCpumping outDbe pumped out
单选题The value of GM still remains one meter, meanwhile we can pump the ballast water to（） the ship on even keel.AmakeBputCkeepDget
单选题Permission is kindly （） about 1000 tons of clean sea water ballast，as and when required for trimming purposes．Arequested to pump outBrequested pumping outCrequesting to pump outDrequesting pumping out