The effective stroke of a constant-str

1、In four strokes engine, the cycle of e

In four strokes engine, the cycle of events is completed in four strokes of （）.Athe cylinderBthe crankshaftCthe pistonDthe cross-head

2、The(75)process analyzes the effect of

The(75)process analyzes the effect of risk events and assigns a numerical rating to those risks.ARisk IdentificationBQuantitative Risk AnalysisCQualitative Risk AnalysisDRisk Monitoring and Control

3、In the cylinder head of a two-stroke/c

In the cylinder head of a two-stroke/cycle diesel engine, valves are used for（）Aair intakeBa fuel outletCcooling water inletsDexhausting combustion ga

4、The effective pump stroke of an indivi

The effective pump stroke of an individual port-and-helix fuel injection pump is determined by the （）Afuel delivery pressureBpump plunger diameterCplunger control rack positionDtotal pump stroke

5、The process of scavenging a two-stroke

The process of scavenging a two-stroke/cycle diesel engine serves to（）Aimprove fuel flow volumeBcool the exhaust valvesCreduce the intake air charge densityDincrease the temperature of exhaust gase

6、What are the symptoms of sun stroke?（）

What are the symptoms of sun stroke?（）ATemperature falls below normal，pulse is rapid and feeble，skin is cold and clammyBTemperature is high，p...