If diesel oil in this tank is used, the （） of the oil must not exceed 120 degree F.

[单选题]Diesel oil may be used to cool （） of a diesel engine.A . cylindersB . exhaust valvesC . pistonsD . fuel valve

[单选题]_________ is a little oil in the tankA．ThereB．ThisC．ThoseD．These

[单选题]The expansion tank for a diesel engine closed cooling system is designed to maintain a constant head on the system and （）.A . reduce water temperatureB . reduce water turbulenceC . provide an air cushionD . allow for an increase in water volume as th

[单选题]The oil is drawn from a drain tank through （）, one of a pair of pumps, into one of fine filters.A . a strain tankB . a head tankC . a service tankD . a strainer

[单选题]Expansion tank should be used to remove （） from cooling water.A . scaleB . sludgeC . chemicalsD . air

[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 . SplashB . GravityC . PressureD . Bypa

[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]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

[单选题]Dirt in the fuel oil system of a diesel engine can cause （）.A . clogged filtersB . poor combustionC . overloading of the dieselD . shock of fuel line

[单选题]A diesel engines crankcase oil level is found to be too high√ You should suspect that （）.A . the engine was over filledB . there might be a fuel leakC . there might be a water leakD . all of the above