E．xhaust gases are generally removed from the cylinders of a two-stroke/cycle diesel engine by

A．natural aspiration

B．masked intake valves

C．air ceils

D．scavenging air

[单选题]（） is the removal of exhaust gases by blowing in fresh air.A . Gas exchangeB . ChargingC . ScavengingD . Supercharging

[单选题]Scavenging is （） of exhaust gases by blowing in fresh air.A . the suctionB . the compressionC . the removalD . the deliver

[单选题]The process to remove exhaust gases by blowing in fresh air is called （）.A . chargingB . superchargingC . startingD . scavenging

[单选题]The exhaust gases for a new engine should be （） when the engine operates under full load.A . smokyB . a little bit denseC . visibleD . almost invisible

[单选题]Moisture is removed from a refrigeration system byA．bleeding refrigerant from the condenserB．opening a drain petcock on the oil separatorC．condensing the water in the heat exchangerD．using a dehydrator cartridge

[单选题]A． smoking exhaust from an operating diesel engine could be caused by( ).A．low sulfur content in the fuelB．a loose injector inlet connectionC．late fuel injectionD．high injection pressure

[单选题]The color of the exhaust from a diesel engine should be （）A . clearB . hazy light brownC . hazy light blueD . hazy light grey

[试题]They removed personal items-bags，notebooks，her six-year-old son's ______(belong)from the car.

[单选题]He [removed] hishat and gloves.A.movedB.took offC.put awayD.threw away

[单选题][A] bore[B] cased[C] removed[D] loaded