[单选] In a bypass type lubrication system for a diesel engine， the dirty oil line to the centrifuge should be taken from the （）

[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 lineB . lube oil pump discharge lineC . bottom of the lube oil sumpD . outlet from the lube oil header

[单选题]A dirty diesel engine oil filter element can best be detected by （）.A . visual inspection of the elementsB . the pressure drop across the filterC . high lube oil sump temperatureD . decrease in oil viscosity from the filter

[单选题]The fuel oil system for a diesel engine can be considered in two parts--the fuel supply and the （） systems.A . fuel treatmentB . fuel combustionC . fuel injectionD . fuel separating

[单选题]In a diesel engine lube oil system, which of the following parts should be lubricated first?（）A . Camshaft beatingsB . Main bearingsC . Piston crownsD . Cylinder wall

[单选题]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 thro

[单选] Two important considerations for the proper lubrication of a diesel engine

[单选题]The diesel engine is a type of （）.A . turbine engineB . gas turbineC . steam engineD . internal combustion engine

[单选题]Oil pressure in the lubrication system is （） the static sea water head to ensure that sea water （） the stem-tube.A . lower than；can lubricateB . lower than；can coolC . higher than；can enterD . higher than ；cannot enter

[单选题]The diesel engine is a type of internal combustion engine which ignites the fuel by injecting it into hot, high pressure air in a （）.A . air bottleB . air compressorC . crank caseD . combustion chamber

[单选题]For a main diesel engine the lube oil in the bearings is drawn from （）, usually located in the bedplate.A . a gravity tankB . a sumpC . a vesselD . a bottle