A.boiler water level is low
B.feedwater is too hot
C.boiler steam demand is low
D.feedwater is too cold
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A.intake valves
B.carburetor
C.exhaust ports
D.injector nozzles
A.clearance
B.crush
C.pitch
D.thrust
A.bottom blow the boiler
B.treat the water with caustic soda
C.treat the water with chemical scavengers
D.reduce the water alkalinity to recommended readings
A.reduce gas flow turbulence
B.prevent exhaust gas corrosion
C.increase the rate of combustion
D.increase the rate of heat transfer
A.reduce air charge turbulence
B.induce air swirl
C.deflect hot combustion gas away from the valves
D.oppose the effects of piston induced squish
最新試題
A diesel engine piston ring face is in direct contact with the （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
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Maximum horsepower of a diesel engine is attained （）.
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