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单选题
The tailshaft sealing arrangement found a little lube oil leaky and caused a lot of seawater into the bearing, the step should be taken as a makeshift is（）
A
dropping lube oil for lubrication, reducing the pollution to the sea
B
setting a temporary gravity oil tank and enhanced the position properly
C
lubricating with the used lube oil
D
lubricating with the fresh water and navigation in a lower speed
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更多 “单选题The tailshaft sealing arrangement found a little lube oil leaky and caused a lot of seawater into the bearing, the step should be taken as a makeshift is（）A dropping lube oil for lubrication, reducing the pollution to the seaB setting a temporary gravity oil tank and enhanced the position properlyC lubricating with the used lube oilD lubricating with the fresh water and navigation in a lower speed” 相关考题
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excessive crankcase pressureB
excessive lube oil temperatureC
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单选题To determine if the lube oil filter elements need changing, （）.A
open the filter and inspect the elementsB
check the lube oil pump discharge pressureC
check the lube oil header pressureD
check the pressure drop across the filter
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单选题The lube oil cooler is located after the lube oil filter in order for （）A
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positive lube oil pump suction to be assuredD
galvanic action in the cooler to be minimized
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excessive valve-guide clearanceC
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lube oil pump suction lineB
lube oil pump discharge lineC
bottom of the lube oil sumpD
outlet from the lube oil header
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单选题Fuel oil contamination of an auxiliary diesel engine lube oil can result in（）A
an increased flash pointB
higher lube oil pressuresC
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单选题The bearing of tailshaft sealing equipment, which adopting the oil nature circulation is hot, the reason is（）A
the rotate speed fluctuationB
the ventilation tube cloggedC
the main engine accelerate so fastD
stormy waves
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单选题The main advantage of improved Simplex tailshaft seal are（）A
the good sealing performance and the simple structureB
the good sealing performance and the short life expectancyC
the good sealing performance but the short life expectancyD
the good sealing performance and the lower cost
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单选题It is necessary for us （） after having served for a certain period.A
to change the lube oilB
have the lube oil purifiedC
have the lube oil burntD
to analyze the lube oil
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单选题Which of the following conditions can cause excessive lube oil consumption in a diesel engine?（）A
Low lube oil temperatureB
Dirty lube oil strainerC
Low lube oil pressureD
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Water discharging from the water outlet of the lube oil purifierB
Fuel oil discharging from the water outlet of the lube oil purifierC
Lube oil discharging from the water outlet of the lube oil purifierD
A change in the lube oil viscosity
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the ability of oil to separate from waterB
the temperature at which oil flows rapidlyC
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prevent the seawater from intergratingB
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TBN numberB
viscosityC
temperatureD
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wax precipitation in the lube oilB
contamination by dust, scale, or moistureC
refrigerant bubbles in the lube oilD
refrigerant reducing the lube oil viscosity
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单选题If a used lube oil analysis indicates an excessive chromate content, this means （）A
air filtration is inadequateB
engine coolant leaking into the lube oilC
fuel oil is leaking into the lube oilD
the piston rings are excessively worn
考题
单选题If a used lube oil analysis indicates excessive fuel dilution, the lube oil should be （）A
changedB
centrifugedC
filteredD
settled
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high lube oil viscosityB
increased lube oil consumptionC
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单选题Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of （）A
refrigerant bubbles in the lube oilB
refrigerant reducing the lube oil viscosityC
oxidation of the lube oil from overheatingD
reducing the floc or cloud point of the oil
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