单项选择题X 纠错
A.low exhaust back pressure
B.air in the fuel system
C.gasket blow-by or leakage
D.incorrect assembly of idler springs
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单项选择题
A.Hydraulic starting
B.Electric starting
C.Ignition
D.Fuel
单项选择题
A.pumping action of the piston
B.pressure of the fuel charge
C.vacuum developed in the manifold
D.pressure of the fresh air charge
单项选择题
A.Electric power and starting air
B.Lube oil standby pump and control air
C.Hydraulic switch and engage jacking gear
D.Motor drain and pneumatic control system power
单项选择题
A.engine overload
B.leaky valves
C.stuck or broken piston rings
D.low air injection pressure
单项选择题
A.Corrosion and eventual failure of the tank
B.Gumming of the tank relief valves
C.Immediate failure of components downstream of the compressed air system
D.Boiling of the water oil mixture as pressure is reduced
单项选择题
A.effective cylinder scavenging and cooling
B.constant pressure from the turbochargers
C.cooler operation of the exhaust system
D.effective constant pressure for turbocharger operation
单项选择题
A.Lubrication
B.Cooling
C.Fuel
D.Electric ignition
单项选择题
A.overloading the engine
B.low exhaust valve lift
C.excessive cylinder cooling
D.insufficient mechanical clearance
单项选择题
A.exhaust manifold
B.valve bridge
C.pressure of the fresh air charge
D.valve adjusting gear
单项选择题
A.excessive compression pressure
B.air in the fuel lines
C.high fuel pressure
D.excessive load
