A.seawater contamination
B.frequent surface blows
C.dissolved oxygen deaeration
D.frequent bottom blows
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A.total dissolved solids
B.salt contamination
C.water hardness
D.chlorine contamination
A.reduce mean effective pressure
B.decrease average compression pressure
C.decrease air charge density
D.increase power output
A.air or water in the furnace
B.combustion pulses
C.fuel oil pump failure
D.flame failure
A.air supply is shut off
B.fuel supply is shut off
C.water supply is shut off
D.safety valve lifts
A.high steam pressure in the boiler
B.abnormally high feed water temperature
C.abnormally high boiler water temperature
D.steam demand exceeding feed pump capacity
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Proper filtering and straining of fuel oil is important because the （）.
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When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
Routine monitoring of a diesel engine should include （）.
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How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
Lube oil cannot be efficiently filtered if its （）.
The function of diesel engine piston compression rings is to （）.