A.scar
B.scale
C.spur
D.bilge
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A.continuously
B.regularly
C.constantly
D.period
A.to change the lube oil
B.have the lube oil purified
C.have the lube oil burnt
D.to analyze the lube oil
A.not less than twice
B.greater at least twice than
C.not greater twice than
D.larger three times than
A.not be changed
B.be changed
C.should not be changed
D.should be changed
A.water discharges from the indicator cocks
B.no water is leaking into crankcase
C.no water in the scavenge belt
D.the rpm is lower than the speed of Dead Slow Ahead
最新試題
Proper filtering and straining of fuel oil is important because the （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
Diesel engine control can be obtained by the bridge （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
What is the function of the thrust bearing?（）
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.