A . TDC
B . DTC
C . BDC
D . DBC
[单选题]For diesel engine piston cooling, lubricating oil can be supplied to the pistons by a/an ().A . oil sprayB . oil bathC . oil control ringsD . drilled passage through the camshaft
[单选题]A diesel engine piston ring face is in direct contact with the ().A . top of the ring grooveB . cylinder liner oil filmC . bottom of the ring grooveD . back of the ring groove
[单选题]In a diesel engine, when refitting piston rings you should ①check the ring gap at the smallest diameter of the cylinder ②remove carbon from the ring grooveA.①B.②C.①②D.neither ① nor ②
[单选题]On a four-stroke diesel engine, when the piston is driven downwards by the expanding gas, it delivers power to the crankshaft through the ().A . thrust blockB . sounding rodC . connecting rodD . push rod
[单选题]In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a drilled passage in the crankshaft to the bottom end bearing and then up a connection rod to theA.crossheadB.crankpinC.crank journalD.gudgeon pin
[单选题]While engine is in operation the piston moves up and down, thus causing the rotation of the ().A . crankcaseB . slipperC . cam housingD . crankshaft
[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]The diesel engine is a type of ().A . turbine engineB . gas turbineC . steam engineD . internal combustion engine
[单选题]D.iesel engine blow-by is the leakage of combustion gases past the( ).A.oil rings onlyB.compression and scraper ringsC.cylinder liner sealingD.cylinder liner ring grooves