The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.

[单选题]Turbocharging of marine diesel engine is achieved by two distinct methods, （） termed the constant pressure and the pulse system.A . respectableB . respectfulC . respectiveD . respectively

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

[单选题]Before a marine diesel engine is started the cylinders and pistons must be （）.A . cooled to appropriate temperatureB . warmed up gradually to appropriate temperatureC . opened up and renewedD . ground and polished

[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]Large marine diesel engines of crosshead construction generally have two systems of lubrication: a total loss system feeding the （） and a recirculation system lubricating the running gear and cooling the piston.A . cylinder liners and piston ringsB .

[单选题]In large marine diesel engines cylinder oils usually contain additives formulated to impart the （） to clean the rings and grooves.A . inefficiencyB . oilinessC . detergencyD . purity

[单选题]Cylinders of marine diesel engines are normally cooled by （）.A . sea waterB . fine mineral oilC . sanitary waterD . fresh water

[单选题]_____ the engines, the diesel engine is ____ used engine on boardA．Between / more commonlyB．Among / the most commonlyC．Between / not more commonlyD．Among / not the most commonly

[单选题]The heart of the diesel engine is the （） where the fuel is burnt and the power developed.A . crankcaseB . cylinderC . scavenge boxD . pisto

[单选题]A viscous damper, as used on a marine diesel, is a sealed precision built device which dampens the torsional vibrations in the （）.A . camshaftB . flywheelC . crankshaftD . thrust shaft