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

题目

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.

相似考题

1.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

2.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

3.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

4.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

更多“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”相关问题

  • 第1题：

    单选题
    Which of the following statements concerning fuel atomization in a diesel engine cylinder is correct?（）
    A

    The greater the atomization, the greater the penetration

    B

    The greater the atomization, the less the penetration

    C

    The degree of atomization has nothing to do with the degree of penetration

    D

    Atomization and penetration are one and the same


    正确答案： A
    解析： 暂无解析

  • 第2题：

    单选题
    Which of the following operational conditions will occur to the diesel engine lube oil at extremely high temperature?（）
    A

    The oil oxidizes and forms carbon deposits

    B

    The viscosity increases

    C

    Engine oil consumption decreases

    D

    Lubricating qualities of the oil are enhanced


    正确答案： C
    解析： 暂无解析

  • 第3题：

    单选题
    Which of the listed conditions can cause a diesel engine to use too much lube oil?（）
    A

    Dirty lube oil filter

    B

    Too much piston ring wear

    C

    High lube oil viscosity

    D

    Low lube oil temperature


    正确答案： C
    解析： 暂无解析

  • 第4题：

    单选题
    A shipboard Oil Pollution Emergency Plan is required of（）.
    A

    all vessels，regardless of size and commercial application

    B

    any barge or ship constructed or operated in such a manner that no oil in any form can be carried aboard

    C

    an oil tanker of 150 gross tons and above，or other ship of 400 gross tons and above

    D

    an oil tanker of 400 gross tons and above，or other ships of 150 gross tons and above


    正确答案： A
    解析： 暂无解析

  • 第5题：

    单选题
    Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?（）
    A

    Water discharging from the water outlet of the lube oil purifier

    B

    Fuel oil discharging from the water outlet of the lube oil purifier

    C

    Lube oil discharging from the water outlet of the lube oil purifier

    D

    A change in the lube oil viscosity


    正确答案： C
    解析： 暂无解析

  • 第6题：

    单选题
    Which of the following statements is correct concerning diesel engine cooling water systems?（）
    A

    Each engine must have its own engine driven cooling water pump capable of providing cooling for all ranges of operation

    B

    propulsion engines with bores exceeding 200 mm are to be fitted with a means to display the cooling water temperature of each cylinder

    C

    At least two independent sea suctions are to be provided for supplying water to the engine jackets or to the heat exchangers

    D

    Suitable strain are to be fitted between the circulating pumps and heat exchangers when sea water is used for direct cooling


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    Which of the following operating procedures should be carried out immediately after any diesel engine is started?（）
    A

    Take all exhaust temperature reading

    B

    Check the sump oil level

    C

    Verify proper lube oil pressure

    D

    All of the above


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    On which vessels is GMDSS required? （）
    A

    All vessels capable of international voyages

    B

    Vessels operating outside of the range of VHF coastal radio stations

    C

    SOLAS Convention ships of 300 gross tonnage or more

    D

    Coastal vessels of less than 300 gross tons


    正确答案： B
    解析： 暂无解析

  • 第9题：

    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?（）
    A

    Ensure proper cylinder lube oil flow

    B

    Open all air space drain cocks

    C

    Open all indicator valves

    D

    all of the above


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.
    A

    open the bypass line

    B

    cut in the lube oil cooler

    C

    pressurize the lube oil system

    D

    top off the expansion tank


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    The lube oil pump used in a diesel engine is a （）.
    A

    volute pump

    B

    centrifugal pump

    C

    diaphragm pump

    D

    gear pump


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    In a diesel engine lube oil system, which of the following parts should be lubricated first?（）
    A

    Camshaft beatings

    B

    Main bearings

    C

    Piston crowns

    D

    Cylinder walls


    正确答案： A
    解析： 暂无解析

  • 第13题：

    单选题
    Which of the following statements represents the reason for rolling over a diesel engine with the cylinder indicator cocks open prior?（）
    A

    To test the starting system

    B

    To remove air bubbles from the jacket water

    C

    To ensure that the lube oil system delivers pressure

    D

    To ensure foreign material (water etc) is not present in the cylinders


    正确答案： A
    解析： 暂无解析

  • 第14题：

    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（）
    A

    dropping lube oil for lubrication, reducing the pollution to the sea

    B

    setting a temporary gravity oil tank and enhanced the position properly

    C

    lubricating with the used lube oil

    D

    lubricating with the fresh water and navigation in a lower speed


    正确答案： C
    解析： 暂无解析

  • 第15题：

    单选题
    A shipboard oil pollution emergency plan is required of （）.
    A

    all vessels, regardless of size and commercial application

    B

    any barge or other ship which is constructed or operated in such a manner that no oil in any form can be carried aboard

    C

    an oil tanker of 150 gross tons or above, or other ship of 400 gross tons or above

    D

    an oil tanker of 400 gross tons and above, or other ships of 150 gross tons and above


    正确答案： A
    解析： 暂无解析

  • 第16题：

    单选题
    Which of the following conditions can cause excessive lube oil consumption in a diesel engine?（）
    A

    Low lube oil temperature

    B

    Dirty lube oil strainer

    C

    Low lube oil pressure

    D

    High lube oil temperature


    正确答案： B
    解析： 暂无解析

  • 第17题：

    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?（）
    A

    Lubrication systems using engine driven lube oil pumps do not require any additional independent arrangement when such arrangements have been proven reliable

    B

    The use of engine driven pre-lube pumps is permitted on vessels with propulsion systems developing less than 500 shaft horsepower

    C

    When 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 operation

    D

    Lubrication systems where two oil coolers are fitted require a minimum of two temperature control devices which may be actuated by similar sensors


    正确答案： C
    解析： 暂无解析

  • 第18题：

    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?（）
    A

    Lube oil pressure and temperature

    B

    jacket water pressure and temperature

    C

    Engine over-speed

    D

    Lube oil sump level


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    Fuel oil transfer systems used onboard diesel propelled vessels are required to have （）.
    A

    two fuel oil transfer pumps provided where one is to be independent of the main engine

    B

    two fuel oil transfer pumps, with a combined capacity exceeding the maximum consumption of the main engine

    C

    engine driven transfer pumps and only used in constant speed applications

    D

    the capacity of the engine driven pump exceed the consumption rate of the engine to which it is attached


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Which of the following conditions could be a cause of excessive fuel dilution of diesel engine lube oil?（）
    A

    Leaking fuel injectors

    B

    Lower than normal compression

    C

    Delayed fuel injection

    D

    All of the above are correct


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    Which of the following faults would allow lube oil to enter the cooling system of a diesel engine?（）
    A

    Excessive valve train lubrication

    B

    Leaking standby oil cooler core

    C

    Excessive lube oil pressure

    D

    Excessive lube oil in the system


    正确答案： A
    解析： 暂无解析

  • 第22题：

    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 （）.
    A

    lube oil pump suction line

    B

    lube oil pump discharge line

    C

    bottom of the lube oil sump

    D

    outlet from the lube oil header


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    Lubricating oil systems for diesel engine journal bearings are usually lubricated by which of the following types of lubricating oil systems?（）
    A

    Splash

    B

    Gravity

    C

    Pressure

    D

    Bypass


    正确答案： C
    解析： 暂无解析

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