单项选择题X 纠错
A.decreasing the compression ratio
B.using a special fuel having a high ignition temperature
C.increasing the starting air supply
D.heating the jacket water
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单项选择题
A.increasing the quantity of starting air
B.increasing the lube oil pressure
C.heating the engine fuel supply
D.heating the engine coolant
单项选择题
A.Faulty thermostatic bypass valve
B.Eroded zinc pencils in the heat exchanger
C.Steam formation in the expansion tank
D.Excessive leakage from jacket water pump seal
单项选择题
A.overloading in all cylinders
B.a jammed three-way thermostatic valve
C.chromate PH too low
D.a high level in the surge tank
单项选择题
A.conducted through the engine block
B.conducted to water cooled cylinder walls
C.conducted through the piston crown
D.loss to escaping exhaust gases
单项选择题
A.Exhaust temperatures
B.Raw water pressure
C.Lube oil pressure
D.Air box pressure
单项选择题
A.rotary;reciprocating
B.up and down;fore and aft
C.fore and aft;up and down
D.up and down;rotary
单项选择题
A.camshaft
B.piston movement
C.exhaust valves
D.vertical drive
单项选择题
A.exhaust pressure
B.valve spring pressure
C.rocker arm movement
D.wrist pin movement
单项选择题
A.piston rod guides
B.engine thrust bearing
C.crosshead bearing
D.main shaft flexible coupling
单项选择题
A.opening the exhaust ports
B.placed on top of the engine along its centerline
C.farthest from the cylinder head
D.nearest to the cylinder head