The exhaust gases for a new engine sho

1、For a main diesel engine the lube oil

For a main diesel engine the lube oil in the bearings is drawn from （）, usually located in the bedplate.Aa gravity tankBa sumpCa vesselDa bottle

2、The exhaust system of a diesel engine

The exhaust system of a diesel engine is usually designed to remove exhaust gases and to （）Aprovide exhaust back pressureBprevent exhaust smoke emissionsCpower a reciprocating superchargerDmuffle exhaust gas noise

3、If the engine （） for a long period, th

If the engine （） for a long period, there will be a danger of frost.Amust to stand inoperativeBhas to stand inoperativeCmust be stood idleDwill stand idle

4、The process to remove exhaust gases by

The process to remove exhaust gases by blowing in fresh air is called （）.AchargingBsuperchargingCstartingDscavenging

5、The exhaust ports of a diesel engine u

The exhaust ports of a diesel engine using the cross-flow scavenging method are opened and closed by the （）Areciprocating motion of exhaust valvesBrotary motion of the camshaftCreciprocating motion of the pistonDdeveloped differential

6、The fuel oil system for a diesel engin

The fuel oil system for a diesel engine can be considered in two parts--the fuel supply and the （） systems.Afuel treatmentBfuel combustionCfuel injectionDfuel separating