Which of the following statements concerning the lubrication of diesel propulsionengines used in vessels over 300 gross tons is most accurate? ( )A.Lubrication systems using engine driven lube oil pumps do not require any additionalindependent arrangement when such arrangements have been proven reliable.B.The use of engine driven pre-lube pumps is permitted on vessels with propulsionsystems developing less than 500 shaft horsepower.C.When forced lubrication is used for propulsion engines , one independently drivenstandby pumps is to be provided in addition to the necessary pumps for normaloperation.D.Lubrication systems where two oil coolers are fitted require a minimum of twotemperature control devices which may be actuated by similar sensors.
Which of the following statements concerning the lubrication of diesel propulsionengines used in vessels over 300 gross tons is most accurate? ( )
A.Lubrication systems using engine driven lube oil pumps do not require any additionalindependent arrangement when such arrangements have been proven reliable.
B.The use of engine driven pre-lube pumps is permitted on vessels with propulsionsystems developing less than 500 shaft horsepower.
C.When forced lubrication is used for propulsion engines , one independently drivenstandby pumps is to be provided in addition to the necessary pumps for normaloperation.
D.Lubrication systems where two oil coolers are fitted require a minimum of twotemperature control devices which may be actuated by similar sensors.
相关考题：
On which vessels is GMDSS required?______.A.All vessels capable of international voyagesB.Vessels operating outside of the range of VHF coastal radio stationsC.SOLAS Convention ships of 300 gross tonnage or moreD.Coastal vessels of less than 300 gross tons
Lubrication for the main reduction gears used with diesel engines is usually supplied byA.oil from the main engine sumpB.an independent lube oil systemC.the stern bearing head tankD.the stem bearing sump tank
In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces_______ .A.all of the oil used by the engine through a filterB.some of the oil used by the engine through a filterC.some of the oil used by the engine through a centrifugeD.all of the oil used by the engine through a centrifuge
A shipboard oil pollution emergency plan is required of ______.A.all vessels, regardless of size and commercial applicationB.any barge or other ship which is constructed or operated in such a manner that no oil in any form can be carried aboardC.an oil tanker of 150 gross tons or above, or other ship of 400 gross tons or aboveD.an oil tanker of 400 gross tons and above, or other ships of 150 gross tons and above
单选题Which of the following statements concerning fuel atomization in a diesel engine cylinder is correct?（）AThe greater the atomization, the greater the penetrationBThe greater the atomization, the less the penetrationCThe degree of atomization has nothing to do with the degree of penetrationDAtomization and penetration are one and the same
单选题Which of the following statements represents the reason for rolling over a diesel engine with the cylinder indicator cocks open prior?（）ATo test the starting systemBTo remove air bubbles from the jacket waterCTo ensure that the lube oil system delivers pressureDTo ensure foreign material (water etc) is not present in the cylinders
单选题Which of the following operational conditions will occur to the diesel engine lube oil at extremely high temperature?（）AThe oil oxidizes and forms carbon depositsBThe viscosity increasesCEngine oil consumption decreasesDLubricating qualities of the oil are enhanced
单选题The tailshaft sealing arrangement found a little lube oil leaky and caused a lot of seawater into the bearing, the step should be taken as a makeshift is（）Adropping lube oil for lubrication, reducing the pollution to the seaBsetting a temporary gravity oil tank and enhanced the position properlyClubricating with the used lube oilDlubricating with the fresh water and navigation in a lower speed
单选题Which of the listed conditions can cause a diesel engine to use too much lube oil?（）ADirty lube oil filterBToo much piston ring wearCHigh lube oil viscosityDLow lube oil temperature
单选题A shipboard oil pollution emergency plan is required of （）.Aall vessels, regardless of size and commercial applicationBany barge or other ship which is constructed or operated in such a manner that no oil in any form can be carried aboardCan oil tanker of 150 gross tons or above, or other ship of 400 gross tons or aboveDan oil tanker of 400 gross tons and above, or other ships of 150 gross tons and above
单选题A shipboard Oil Pollution Emergency Plan is required of（）.Aall vessels，regardless of size and commercial applicationBany barge or ship constructed or operated in such a manner that no oil in any form can be carried aboardCan oil tanker of 150 gross tons and above，or other ship of 400 gross tons and aboveDan oil tanker of 400 gross tons and above，or other ships of 150 gross tons and above
单选题Which of the following conditions can cause excessive lube oil consumption in a diesel engine?（）ALow lube oil temperatureBDirty lube oil strainerCLow lube oil pressureDHigh lube oil temperature
单选题Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?（）AWater discharging from the water outlet of the lube oil purifierBFuel oil discharging from the water outlet of the lube oil purifierCLube oil discharging from the water outlet of the lube oil purifierDA change in the lube oil viscosity
单选题Which of the following statements concerning the lubrication of diesel propulsion engines used in vessels over 300 gross tons is most accurate?（）ALubrication systems using engine driven lube oil pumps do not require any additional independent arrangement when such arrangements have been proven reliableBThe use of engine driven pre-lube pumps is permitted on vessels with propulsion systems developing less than 500 shaft horsepowerCWhen forced lubrication is used for propulsion engines, one independently driven stand-by pumps is to be provided in addition to the necessary pumps for normal operationDLubrication systems where two oil coolers are fitted require a minimum of two temperature control devices which may be actuated by similar sensors
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Diesel engine automated control systems may utilize sensing devices of dual function, with sensing ranges providing both alarm and engine shut down capability.Which of the key points would only require an alarm sensor?（）ALube oil pressure and temperatureBjacket water pressure and temperatureCEngine over-speedDLube oil sump level
单选题Which of the following operating procedures should be carried out immediately after any diesel engine is started?（）ATake all exhaust temperature readingBCheck the sump oil levelCVerify proper lube oil pressureDAll of the above
单选题Fuel oil transfer systems used onboard diesel propelled vessels are required to have （）.Atwo fuel oil transfer pumps provided where one is to be independent of the main engineBtwo fuel oil transfer pumps, with a combined capacity exceeding the maximum consumption of the main engineCengine driven transfer pumps and only used in constant speed applicationsDthe capacity of the engine driven pump exceed the consumption rate of the engine to which it is attached
单选题On which vessels is GMDSS required? （）AAll vessels capable of international voyagesBVessels operating outside of the range of VHF coastal radio stationsCSOLAS Convention ships of 300 gross tonnage or moreDCoastal vessels of less than 300 gross tons
单选题Which of the following conditions could be a cause of excessive fuel dilution of diesel engine lube oil?（）ALeaking fuel injectorsBLower than normal compressionCDelayed fuel injectionDAll of the above are correct
单选题Following an overhaul of a crosshead type diesel engine, the engine is jacked over with the turning gear as part of the pre-start procedure, which of the listed pre-start procedures should be carried out?（）AEnsure proper cylinder lube oil flowBOpen all air space drain cocksCOpen all indicator valvesDall of the above
单选题Which of the following faults would allow lube oil to enter the cooling system of a diesel engine?（）AExcessive valve train lubricationBLeaking standby oil cooler coreCExcessive lube oil pressureDExcessive lube oil in the system
单选题Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.Aopen the bypass lineBcut in the lube oil coolerCpressurize the lube oil systemDtop off the expansion tank
单选题In a bypass type lubrication system for a diesel engine, the dirty oil line to the centrifuge should be taken from the （）.Alube oil pump suction lineBlube oil pump discharge lineCbottom of the lube oil sumpDoutlet from the lube oil header
单选题The lube oil pump used in a diesel engine is a （）.Avolute pumpBcentrifugal pumpCdiaphragm pumpDgear pump
单选题Lubricating oil systems for diesel engine journal bearings are usually lubricated by which of the following types of lubricating oil systems?（）ASplashBGravityCPressureDBypass
单选题In a diesel engine lube oil system, which of the following parts should be lubricated first?（）ACamshaft beatingsBMain bearingsCPiston crownsDCylinder walls