In a four-cycle diesel engine piston blow-by can result in increased()
- Acrankcase pressure
- Bcompression pressure
- Cscavenge pressure
- Dexhaust manifold pressure
In a four-cycle diesel engine piston blow-by can result in increased()
1、Excessive piston ring wear in a diesel
Excessive piston ring wear in a diesel engine will cause()Ahigh lube oil viscosityBincreased lube oil consumptionClow lube oil temperaturesDhigh firing pressure
2、A diesel engine piston ring face is in
A diesel engine piston ring face is in direct contact with the ().Atop of the ring grooveBcylinder liner oil filmCbottom of the ring grooveDback of the ring groove
3、In a normally operating diesel engine,
In a normally operating diesel engine, the main cause of lubricating oil contamination in the crankcase is a result of the ().Ametal particle...
4、Injection lag in a diesel engine may b
Injection lag in a diesel engine may be caused by()Aa higher cetane number of fuel oilBthe diesel fuel used having a high viscosityCmechanical rigidity in the lube pump mechanismDa decrease rigidity in the fuel pump delivery pressure
5、In an engine with a pot-shaped piston,
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 the ().AcrossheadBcrankpinCcrank journalDgudgeon pi
6、Defective atomizer in a diesel engine
Defective atomizer in a diesel engine will lead to().Asmoky exhaustBstarting failureCoverloadDover speed